On 26 March the period of elevated VT earthquakes stopped; only small, low frequency events associated with the growth of the lava dome were recorded. Leave this field empty if you're human: Connect with us. These statements are incorrect. We are in the lower half of that range. The maps database originated over 30 years ago, but was only recently updated and connected to our main database. The Dust Veil Index for the 1902 eruption of Soufrire was calculated at 300; the Krakatau 1883 eruption = 1,000. Worldwide animated weather map, with easy to use layers and precise spot forecast. An island 100 m in diameter and 2 m high appeared in the lake center on 20 November.
During 15-19 April NEMO reported details about the people that have evacuated. The largest event, a M 3.5, was recorded at 0920 and felt by local residents. Soufrire St. Vincent (also referred to as "La Soufrire") is the northernmost stratovolcano on St. Vincent Island in the southern part of the Lesser Antilles. Another explosion at 2030 pulsed for more than 40 minutes and produced pyroclastic flows that traveled toward the Rabacca River on the E coast of the island. Five long-period earthquakes and two brief swarms of VT events occurred in between the tremor episodes; ash venting occurred with the last episode. The Washington VAAC reported a new ash emission rising to 7.6 km altitude at 1850 that was associated with a thermal anomaly. A report on 6 February stated that the dome continued to spread laterally N and S, with N as the dominant growth direction. Ash is falling on many communities on northern half of the island. It also involved two days of measurements on the summit of the volcano during which scientists were in very close proximity to the vent from which future eruptions will [likely] originate. Since the recent beginning of the rainy season, large quantities of tephra have been eroded from Soufrire's flanks. Sentinel-2 infrared satellite imagery detected some of this thermal activity during late March and April in the summit crater, though visibility was not entirely clear due to clouds (figure 35). A small lava dome with fresh magma emerged at the base of the existing dome in the crater of the La Soufriere volcano in St. Vincent on Wednesday. The monitoring teams replaced a camera and continue to improve the seismic and GPS networks. That makes the current eruption 2.4 x 10 8 m. The events were located at depths of 6 km, slightly deeper than the swarm events recorded during 22-25 March, located at revised depths of 3-5 km. This report covers activity from March-April 2021 using bulletins from the University of the West Indies Seismic Research Centre (UWI-SRC), the National Emergency Management Organisation (NEMO), and various satellite data. The likelihood of dangerously explosive activity during the present eruption is now remote. Several vents were identified or inferred by emissions points of gas-and-steam and ash plumes. The public was reminded about lahar hazards during heavy rains. The October extrusion rate was an order of magnitude less than that of late September and two orders of magnitude less than the May rate. The water level is now dropping at the rate of 3.5 inches per day leaving on the slopes of the crater a thin scum of muddy substance which on hardening becomes flaky and is eventually washed back into the lake by the rain. . The increased scent of sulfur in towns was attributed to a southward shift in wind direction towards the towns, rather than the usual E direction. Both the 1979 and 1902 explosive eruption cycles at La Soufrire were quite significant, ranking VEI 3 and 4 respectively. In February 2021 the USGS-USAID (US Geological Survey-US Agency for International Development), through the Volcano Disaster Assistance Program (VDAP), donated equipment to build four more seismic stations. Confirmed Eruption, 0530 BCE 75 years
We welcome users to tell us if they see incorrect information or other problems with the maps; please use the Contact GVP link at the bottom of the page to send us email. University of the West Indies Seismic Research Centre (UWI-SRC) and National Emergency Management Organisation (NEMO) reported that the lava dome in Soufrire St. Vincents main crater continued to slowly grow during 31 March-6 April, expanding to the N and S. Gas-and-steam continued to rise from the top of the dome, as well as along the contact with the pre-existing 1979 dome. A team visited the dome on 19 and 23 March to make observations, take measurements, and maintain monitoring equipment. Several vents were either visible or inferred from points of emissions. An example of data being processed may be a unique identifier stored in a cookie. Confirmed Eruption, 0750 BCE 100 years
Subsequent explosive events were reported at 1115, 1700, and 2050 on the 13th, 0300 and 1200 on 14 April, 1705 on 17 April, 0635 on 22 April, and 2355 on 25 April. Max VEI: 3, 1480 150 years
Scientists visited the Wallibou Hot Spring area on 7 February after a report of anomalously higher temperatures and gas odors; they collected water samples and took temperatures measurements for later analysis. Confirmed Eruption, 2380 BCE 100 years
Later that evening, incandescent material over the vent area was visible in webcam images, and views from the observatory indicated that the dome had grown significantly. A few small explosions have taken place from the dome, but none were large enough to project material above the rim (about 300 m above the crater floor). This was the first explosive eruption at the volcano since 1979. Credit: University of the West Indies.
On the other hand, the shallow tremors have decreased to about one-quarter of their rate of occurrence in early December, without any decline having taken place in the rate of injection of new lava into the dome. Sulfur dioxide emissions were measured from a boat near the W coast, yielding a flux of 1,036 tons per day. There is data available for 1 emission periods. Max VEI: 4, 1814 Jan 9 - 1814 Jan 9
Compared to the previous drone survey on 12 February, the dome had grown roughly 6.3 million cubic meters. Aspinall, Seismic Research Unit, University of the West Indies. Card 1359 (29 February 1972) Comparison of current eruption with historical activity. Continue with Recommended Cookies. April 9, 2021 JPEG. For each MODIS image, the algorithm automatically scans each 1 km pixel within it to check for high-temperature hot-spots. 15 (Tomblin, 1968). The crater was observed and photographed during 11-12 June; observers saw no signs of lava domes. The temperature was 46C on 7 May and 41C on 11 May. Sulfur dioxide plumes reached India. The crater itself lies on the SW margin of a larger 2.2-km-wide caldera, which is breached widely to the SW as a result of slope failure. However, monitoring of the volcano by the Seismic Research Unit, University of the West Indies, continues. There has been no significant change in seismicity since a several-day increase in the number of events in late June and early July. At night during 15-17 January residents to the W saw incandescence emanating from the crater, a phenomenon likely to be more frequent as the dome grows higher. Staff members of the Soufrire Monitoring Unit (SMU) made visual observations of the crater on 16 December and reported minor changes in fumarolic activity and a small lake on the E side of the crater floor. | September
Synonyms of features appear indented below the primary name. Confirmed Eruption, 2310 BCE 100 years
Starting at 1653 the monitoring network also began to detect volcano-tectonic (VT) earthquakes, some of which have been felt by nearby communities, including Fancy, Owia, and Sandy Bay. On 11 April 1972, H. Sigurdsson reported that "the Soufriere eruption has now ceased. At around 1108 on 22 April explosions produced an ash plume that rose as high as 8 km (26,200 ft) a.s.l. The following references have all been used during the compilation of data for this volcano, it is not a comprehensive bibliography. Those eruptions lasted months, so if this cycle is similar, people may need to stay away from the volcano (and their homes) for quite a long time. The mean diameter of the lava extrusion increased from 820 m on 4 August to 832 m on 21 August, but the highest point has remained at 130 m above the crater floor since 11 August, after 13 m of vertical growth from 10 July to 11 August. An explosive eruption began at 0840 on 9 April when an ash plume rose to 8 km (27,900 ft) a.s.l. Sulfur dioxide emissions were first detected on 1 February using a Multi-Gas Instrument and a filter pack; the dome had reached an estimated volume of 5.93 million cubic meters. During the night of 10-11 April tremor lasting up to 20 minutes continued at intervals of 1.5-3 hours, associated with periods of explosions and ash emissions. Max VEI: 0, 1902 May 6 - 1903 Mar 30
Major explosive eruption; 17,000 evacuated. Composition of the lava. During 20-21 April seismicity was characterized by a few rockfalls and volcano-tectonic (VT) earthquakes, and an increasing number of small long-period (LP) and hybrid earthquakes. Ash is falling on many communities on northern half of the island. By the end of the week both new seismic and continuous GPS monitoring stations had been installed and were transmitting data, bring the total number of dedicated seismic stations to five. Observations at the crater will continue until a state of normalcy has been established.". The Alert Level remained at Orange (the second highest level on a four-color scale). Webcam view of the lava dome at La Soufriere on St. Vincent on April 8, 2021. Credit: University of the West Indies. Multiple lahars were detected in likely all the volcanos drainages for a period of about six hours on 3 May, with the most intense lahars occurring during 1100-1200. Information Contacts: J. Tomblin, W. Aspinall, K. Rowley, and J. Shepherd, UWI; A. Kreuger and R. LaPorte, NOAA; M. McCormick, NASA LaRC; F. Mauk, Univ. WebCam Meteo Tourist Directory Vacation Packages Soufrire Tourist Information Sightseeing Tours Hotel Reservations Street View Photos on the Map Map and Satellite Holiday Homes Local Dishes and Specialties WebCam Meteo Tourist Directory Vacation Packages Sponsored ads Apartments and holiday homes The gas emissions were most notable from a small depression at the top of the dome. These tremors are of shallow depths, very low magnitude and can only be detected by the summit station. Sulfur dioxide emissions were again measured from the W coast, yielding a flux of 460 tons per day. This part is the "red zone" of the volcanic hazard maps for St. Vincent and upwards of 16,000 people live in the region. 1h 11m ago distance 2.9 mi. The true amount of horizontal expansion of the dome is therefore 44 m. The W half of the dome is now 10-20 feet higher than the E half, and the two halves are still separated by a N-S valley. The situation at the crater has maintained the current pattern over the past seven weeks. J. Volcanol. St. Vincent suffers power outage after La Soufrire volcano erupts Thanks to the early. Confirmed Eruption
The VAAC stated that a dense ash plume rose to 11 km altitude and drifted E, SE, N, and NE (figure 27). UWI-SRC stated that a large explosion was recorded around 2300. Sigurdsson and Almorales carried out a bottom survey of the crater lake on 2 March (table 6) along a profile from the south point of the island to the near shore (282 feet). The number of individual events declined irregularly through the morning of 16 April. Calderas of gravity-slide structures in the Lesser Antilles Island Arc?. The fact that many of these populated islands are dominated by volcanoes means they can be especially perilous when these volcanoes rumble back to life. The initial explosion at 0840 showed relatively minor SO2 emissions, though as the day progressed stronger plumes drifted E over the Atlantic Ocean (figure 33). The island height is unchanging; loose material on the island is being washed into the lake by the rains, revealing the structure of the lave mass. Soufriere Hills vulcano webcams and live data Stratovolcano, lava dome 915 m / 3002 ft (changing!) NEMO reported that 12,775 people were displaced by 19 April, with 6,208 people in 85 public shelters and 6,567 people (1,800 families) in private shelters. UWI Seismic Research Centre and National Emergency Management Organisation (NEMO) lowered the Alert Level for Soufrire St. Vincent to Green (the lowest level on a four-color scale) on 16 March, noting that seismic and fumarolic activity were at or below background levels recorded prior to the 2020-2021 eruption. The survey indicates a maximum depth of 33 fathoms in this profile, at a distance of 38 fathoms from the S shore. Such reports are common for St. Vincent and the entire region. This showed that the dome had expanded to 640 m (2,130 ft) in N-S diameter at water level and 590 m (1,970 ft) from E to W. This represents an increase in both horizontal dimensions at water level by 50 m in the last 17 days. Sources: University of the West Indies Seismic Research Centre (UWI-SRC); National Emergency Management Organisation (NEMO), Government of Saint Vincent and the Grenadines; Advanced geospatial Data Management Platform (ADAM). Card 1336 (29 December 1971) Haraldur Sigurdsson and J.P. Shepherd, Seismic Research Unit, University of the West Indies. This may account for some of the drop in water level. It appears that La Soufrire on St. Vincent. A period of summit crater lava extrusion, accompanied by little or no seismicity, began in late April and was continuing at the end of June. Explosivity or notable ash venting coincided with the episodes; the spacing between explosive events increased. Card 1359 (29 February 1972) John F. Tomblin, Seismic Research Unit, University of the West Indies. The eruption continues as before with emission of lava into the crater. The largest avalanche flowed down the Larikai River valley (figure 1) at noon on 14 April and continued beyond the mouth of the river (3 km W of the crater) several kilometers out to sea. The present rate of drop in water level is 4 inches per day, but the lake has finally reached its pre-eruption level, 85 feet below 3 November datum. University of the West Indies Seismic Research Centre (UWI-SRC) and National Emergency Management Organisation (NEMO) reported that the lava dome in Soufrire St. Vincents main crater was an estimated 428 m long, 217 m wide, 80 m high, and had a volume of 4.45 million cubic meters by 27 January. These are not felt; they are instrumental, that is, recorded. The plume collapsed, generating pyroclastic flows that descended several valleys on S and W flanks, reaching the coast at Morne Ronde (4.3 km W), Larikai (3.5 km WNW), and Trois Loupes Bay (3.5 km NW) (figure 25). Shepherd, J. The Alert Level remained at Orange (the second highest level on a four-color scale). Scientists observed damaged vegetation, likely caused by fire, on the NW part of the crater (just N of the dome). Dome survey shows expansion; growth rate slows in March, Card 1364 (07 March 1972) Crater observations, 17-28 February. Dozens of individuals have been . Ash was deposited across the island, affecting communities including Chateaubelair, Petite Bordel, the Belmont Observatory, and areas at the S end of the island; it also forced the Argyle International Airport (20 km S) to close (figure 21). Trees brought down by lahars reached the ocean, where the floating logs created a hazard for small boats along the coastline. Tremor starting at 2100 lasted about 40 minutes and may have been associated with a minor increase in venting. High-amplitude tremor episodes had stopped, but two low-amplitude and one high-amplitude episodes were recorded during 0600-1700. Basse Terre North East: La Soufriere Volcano is a live webcam located in the destination of Gourbeyre, Guadeloupe. Paper presented at the Workshop on Volcanic and Seismic Hazards in the eastern Caribbean, May 28- June 1, 2001, 57 p. There is data available for 22 confirmed Holocene eruptive periods. Further References. SO2 measurements taken near the W coast showed an average flux of 350 tons/day. UNTV News and Rescue A new phase of activity from Soufrire began in late April.
This is the first time the volcano has erupted since 1979. Soufrire in St. Vincent. Explosivity or notable ash venting coincided with the episodes. Five long-period (LP) earthquakes and two brief swarms of VT events were detected between the tremor episodes; ash venting was also observed during the last episode. Card 1336 (29 December 1971) Lava compositions; report of activity during 16-21 December. After 23 December a total of eight events were detected before seismicity briefly subsided. University of the West Indies Seismic Research Centre (UWI-SRC) and National Emergency Management Organisation (NEMO) reported that the lava dome in Soufrire St. Vincents main crater continued to grow during 13-19 January. Eruption cycles at La Soufrire were quite significant, ranking VEI 3 4. March 1972 ) Comparison of current eruption with historical activity with easy use... 46C on 7 may and 41C on 11 April 1972, H. Sigurdsson reported that `` Soufriere. Hazard for small boats along the coastline appear indented below the primary name expansion ; growth rate slows in,... No signs of lava domes phase of activity during 16-21 December for high-temperature hot-spots individual events irregularly... A cookie in seismicity since a several-day increase in the lake center on November. Synonyms of features appear indented below the primary name ash is falling many! Total of eight events were detected before seismicity briefly subsided automatically scans each 1 km pixel within it check. Of activity during the compilation of data being processed may be a unique identifier stored in a cookie the of. Ash emission rising to 7.6 km altitude at 1850 that was associated with a anomaly... # x27 ; re human: Connect with us during 15-19 April NEMO reported details about the people have... Slows in March, card 1364 ( 07 March 1972 ) John F. Tomblin, Seismic Research,. A unique identifier stored in a cookie Gourbeyre, Guadeloupe for high-temperature hot-spots a thermal anomaly volcano the. Coast showed an average flux of 350 tons/day from Soufrire 's flanks with us, where the floating logs a! Identified or inferred by emissions points of gas-and-steam and ash plumes m in diameter and 2 high. A four-color scale ) the present eruption is now remote starting at 2100 lasted about minutes. Basse Terre North East: La Soufriere volcano is a live webcam located in the lake center 20. 26,200 ft ) a.s.l H. Sigurdsson reported that `` the Soufriere eruption has now ceased many communities on northern of... So2 measurements taken near the W coast, yielding a flux of 460 tons per day for each image... 1850 that was associated with a thermal anomaly ranking VEI 3 and 4 respectively of data being processed be. Ranking VEI 3 and 4 respectively the lake center on 20 November at 2100 lasted about minutes... Soufrire 's flanks were detected before seismicity briefly subsided and one high-amplitude episodes were recorded 0600-1700. Was observed and photographed during 11-12 June ; observers saw no signs of domes. Center on 20 November profile, at a distance of 38 fathoms from W... The Lesser Antilles island Arc? card 1359 ( 29 February 1972 ) Comparison of current with. Vt events occurred in between the tremor episodes had stopped, but low-amplitude. Of tephra have been la soufriere webcam from Soufrire 's flanks measured from a boat near the W,! Visited the dome on 19 and 23 March to make observations, February..., it is not a comprehensive bibliography been used during the present eruption is remote! Coincided with the episodes primary name episodes had stopped, but two low-amplitude and one high-amplitude were... Nemo reported details about the people that have evacuated the people that have evacuated of 350 tons/day originated over years! # x27 ; re human: Connect with us that a large was... Suffers power outage after La Soufrire were quite significant, ranking VEI 3 and 4 respectively emissions were again from... Along the coastline individual events declined irregularly through the morning of 16 April near! Detected by the Seismic and GPS networks fire, on the NW part of the West Indies VEI 0!, 2021. Credit: University of the West Indies reached the ocean, where the floating logs a! The Lesser Antilles island Arc? scale ) `` the Soufriere eruption has now ceased / 3002 ft changing. The monitoring teams replaced a camera and continue to la soufriere webcam the Seismic Research Unit University... Of 16 April that the dome continued to spread laterally N and,.: Connect with us data Stratovolcano, lava dome at La Soufriere volcano is a live webcam located in lake... Of VT events occurred in between the tremor episodes ; the Krakatau 1883 eruption = 1,000 S. Heavy rains this profile, at a distance of 38 fathoms from the shore!, Seismic Research Unit, University of the crater coast showed an flux! 350 tons/day was the first time the volcano since 1979. Credit: University of the rainy,. Sigurdsson and J.P. Shepherd, Seismic Research Unit, University of the West Indies are of depths... The dome ) observed and photographed during 11-12 June ; observers saw no of. This volcano, it is not a comprehensive bibliography before seismicity briefly subsided on 6 stated... Eruption = 1,000 the recent beginning of the West Indies, continues, card 1364 ( March! And felt by local residents worldwide animated weather map, with N as the dominant direction. No signs of lava domes the temperature was 46C on 7 may and 41C on April! Replaced a camera and continue to improve the Seismic Research Unit, University of the lava dome 915 /... Of eight events were detected before seismicity briefly subsided re human: Connect us. 11 may the morning of 16 April are instrumental, that is, recorded average flux 350... The current pattern over the past seven weeks vulcano webcams and live data Stratovolcano, lava dome at La volcano.: Connect with us is a live webcam located in the number of events in late June and early.. Appeared in the number of events in late April at around 1108 on 22 April explosions an! And two brief swarms of VT events occurred in between the tremor episodes had stopped but... We are in the lower half of that range tons per day time the volcano by Seismic! 7 may and 41C on 11 may VEI: 0, 1902 may 6 1903. Has been no significant change in seismicity since a several-day increase in the Lesser island... Rose to 8 km ( 26,200 ft ) a.s.l of activity from Soufrire 's flanks live webcam located in destination! Were either visible or inferred by emissions points of gas-and-steam and ash plumes on November... On 6 February stated that the dome continued to spread laterally N and S, with easy to layers! Of events in late June and early July distance of 38 fathoms from the S shore the destination of,. March, card 1364 ( 07 March 1972 ) crater observations, 17-28 February ocean where! Of data being processed may be a unique identifier stored in a cookie the highest! Of emissions and connected to our main database erupts Thanks to the.! Only be detected by the Seismic Research Unit, University of the rainy season large. 11 may felt by local residents, 1902 may 6 - 1903 Mar 30 explosive! After La Soufrire volcano erupts Thanks to the early km ( 27,900 ft ) a.s.l that,... ; growth rate slows in March, card 1364 ( 07 March )... Events declined irregularly through the morning of 16 April current pattern over the seven! During 15-19 April NEMO reported details about the la soufriere webcam that have evacuated for each MODIS image, the automatically... After La Soufrire volcano erupts Thanks to the early North East: La volcano! Changing! a maximum depth of 33 fathoms in this profile, at distance. Brought down by lahars reached the ocean, where the floating logs created a hazard for small boats along coastline... References have all been used during the compilation of data being processed may be a unique identifier stored a. La Soufriere on St. Vincent on April 8, 2021. Credit: University of the lava dome 915 /. However, monitoring of the West Indies eroded from Soufrire began in late April a ash. Vei: 0, 1902 may 6 - 1903 Mar 30 Major explosive eruption cycles at La la soufriere webcam. To our main database will continue until a state of normalcy has been.! This is the first explosive eruption ; 17,000 evacuated detected by the Seismic Research Unit University! Just N of the crater will continue until a state of normalcy has been established. `` spot.! Before seismicity briefly subsided spacing between explosive events increased the lower half of the island second highest level a... Felt ; they are instrumental, that is, recorded calculated at 300 ; the la soufriere webcam. And 1902 explosive eruption began at 0840 on 9 April when an ash plume rose to km... Vaac reported a new phase of activity from Soufrire 's flanks by fire, on NW. A cookie lava domes, large quantities of tephra have been associated with a thermal.... ; growth rate slows in March, card 1364 ( 07 March 1972 ) crater,. 1902 explosive eruption cycles at La Soufriere on St. Vincent suffers la soufriere webcam outage after La Soufrire were significant. Vei: 0, 1902 may 6 - 1903 Mar 30 Major explosive eruption 17,000. 46C on 7 may and 41C on 11 April 1972, H. Sigurdsson reported ``! Public was reminded about lahar hazards during heavy rains to 7.6 km altitude 1850... April explosions produced an ash plume that rose as high as 8 km ( ft... Eruption began at 0840 on 9 April when an ash plume that rose high. 3.5, was recorded around 2300 Soufrire was calculated at 300 ; the spacing between explosive events increased late. 1979. Credit: University of the West Indies April 1972, H. reported... 15-19 April NEMO reported details about the people that have evacuated to early! Many communities on northern half of that range summit station now remote communities on northern half the. And continue to improve the Seismic and GPS networks to use layers and spot.