In Turrialba, eruptive activity continues with an average of three episodes per hour.
The eruption of May 4, at 4:04 p.m., generated an increased tremor, lasting an hour later. Meanwhile, three other eruptions were recorded, respectively at 16.35, 4:59 p.m. and 4:51 p.m.. The winds on the summit trained ashes eastward and southward, affecting monitoring instruments, seismometers and webcams.
Degassing continued meanwhile.
Sources: RSN & Ovsicori / Costa Rica
In Villarica / Chile, fumerolienne activity increased this May 4 . SERNAGEOMIN signals no change in the volcano alert levels.
In the South Sandwich Islands, Landsat 8 reveals on 24.04 and 01.05.2016 an eruptive plume at Mount Sourabaya, a cone in Bristol island. The eruption would be of Strombolian type.
The last eruption took place in Bristol Island in January 1956 on the west side.
- Landsat 8 & Mirova
- volcanoplanet. blog
- Global Volcanism Program - Bristol island
In Hawaii, thermal images show over the last 24 hours , a glow in the crater of Pu'u O'o and at the skylights of the lava tube located on its NE flank.
A small lava flow is indicated by the Observatory on 4 May starting at 3:15. The tiltmeters recorded an inflation followed by a sudden deflation, after the start of the lava flow. Seismicity remains low at Pu'u O'o.
Activity of Sinabung / Sumatra in images ... equal to itself!