Volcanic activity world-wide 26-27 June: El Hierro, Popocatéptl, Pacaya, Santiaguito, Fuego
wo, 27 jun 2012, 09:1109:11 AM | DOOR: T
Plaats en de diepte kaart van de bevingen onder de El Hierro in de afgelopen 36 uur. De rode kogels Ion de Las Calmas zee pas in de 26e juni 's middags.
SO2 pluim van Popo tijdens 26 juni
The most interesting volcano-related event at the moment is certainly the seismic crisis on El Hierro where the high-intensity earthquake swarm accompanied by tremor episodes continues. The quakes, still at "safe" 20 km depth, have now migrated to the El Julan coast where magma could be accumulating.
Typical seismic signal from Santiaguito with explosion and rock-fall signals (INSIVUMEH)
Gas and steam venting picked-up at Popocatepetl volcano in the past 24 hours. The seismic signals from a train of exhalations is visible on the enclosed seismogram beginning at 16 UTC. SO2 output from the volcano had increased the past few days.
Colombia: Tremor and earthquakes have been much reduced at Nevado del Ruiz during the past few days.
After several days of increased earthquakes and tremor, Galeras volcano appears also to be taking a break.
Seismic activity recorded at Fuego volcano suggests another significant outburst occurred at that volcano late yesterday. INSIVUMEH reports 6 weak ash emissions and 3 strombolian explosions ejecting glowing bombs up to 150 m.
Pacaya volcano shows frequent quakes and tremor episodes, but there is only steaming as visible activity.
Santiaguito volcano had a moderate explosion at 05:47 producing a 600 m tall ash column drifting SE, and causing ash fall in the areas of Finca San José and Finca La Quina. Weak avalanches descended from the SE side of the dome and the lava flow front on its SW side. After 21:00 at night, a small lahar descended into the Nimá I river.
Koppelingen / Bronnen:
Koppelingen / Bronnen:
- Volcano activity of June 26, 2012 – Canary Islands, Mexico, Colombia and Guatemala (Earthquake-Report)
- BOLETIN VULCANOLOGICO DIARIO (INSIVUMEH)
Tue, 26 Jun 2012, 06:27
A new eruption might be under way at El Hierro (Canary Islands, Spain). Following several weaker swarms in the past weeks, a strong swarm started late on 24 June and increased dramatically to more than 200 earthquakes of M1.5 or more, including volcanic tremor. The quakes locations indicated that magma was moving at depth from N towards the S in a similar way as at the start of the 2011 submarine eruption. Therefore, the possibility of renewed eruptive activity is real. ... Lees alle