Tofua volcano (Tonga Islands): new thermal signal
Sun, 28 Apr 2024, 03:31 | BY: MARTIN
A strong radiation from the Tofua's Lofia cone on 26 April (image: Sentinel-2)
The latest Sentinel-2 satellite image revealed a strong thermal anomaly from the northernmost cone, Lofia, on 26 April. This might represent a new batch of magma shifting inside the conduit at high levels.
No ash nor SO2 emissions have been reported yet.
Tofua volcano is the subaerial part of a large frequently active stratovolcano. It forms the 8 km wide circular Tofua Island, dominated by the 5 km wide caldera containing a freshwater lake at only 30 m above sea level and surrounded by steep 300 m cliffs. The largest and northernmost of the cones, Lofia, has a steep-sided crater that is 70 m wide and 120 m deep and has been the source of historical eruptions, first reported in the 18th century.
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Previous news
Wed, 12 Jul 2023, 14:00
Tofua volcano (Tonga Ridge) - Smithsonian / USGS Weekly Volcanic Activity Report for 5 July-11 July 2023 (Continuing Activity)
Tonga Geological Services issued a public notice on 7 July noting the ongoing eruption at Tofua and requesting that the public contact them with any information, including photos and video. Data and observations indicated that the activity was normal and no significant seismic activity nor thermal anomalies were recorded. ... Read all
Tue, 14 Aug 2012, 09:16
Tofua volcano (Tonga Islands) false eruption report: fire smoke mistaken for ash cloud
Yesterday's report of a possible eruption turned out to have been cause by fires on the island by locals during a wild boar chase. ... Read all
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