Volcanic activity worldwide 23 Mar 2013: El Hierro, Stromboli, Colima, Popocatépetl, Batu Tara, Telica
 |
| Tolbachik (Kamchatka) |
Stromboli
(Eolian Islands, Italy): An increase in activity has occurred today.
Lava overspills wide area of the rims of the NE crater, causing lava
overflows and numerous rockfalls descending down the Sciara del Fuoco.
Tremor and explosion signals have increased in strength.
El Hierro (Canary Islands, Spain): The scenario of an eruption in the near future is becoming increasingly likely:
Tremor and explosion signals have increased in strength.
El Hierro (Canary Islands, Spain): The scenario of an eruption in the near future is becoming increasingly likely:
- Volcanic tremor continues, suggesting magma is still moving although mostly laterally for the time being to an area just north off the western tip of the island.
Tolbachik
(Kamchatka): Activity continues essentially unchanged: strombolian
explosions accompany the effusion of fluid lava flows from the southern
fissure of Tolbachinsky Dol. The flows spread into 2 distinct fields to
the west and the east and are well visible on satellite data.
KVERT reports that the tremor amplitude remains oscillating between medium to high levels, at about 1/3 of their level during the start of the eruption.
Batu
Tara (Sunda Islands, Indonesia): For several days in a row, ash plumes
have been spotted at 10,000 ft (3 km) altitude. The volcano, in
near-continuous strombolian activity since 2006, has apparently stepped
up the frequency of larger explosions although perhaps part of this
might be explained by better meteorologic conditions allowing to detect
ash plumes.
Colima (Western Mexico): Small explosions from the growing dome, associated rockfalls and volcanic earthquakes have continued to increase in amplitude and frequency during the past days and weeks.
Popocatépetl (Central Mexico): No big changes in activity have occurred. Emissions of gas-steam-sometimes small amounts of ash have remained less than 1 per hour on average (yesterday).
Colima (Western Mexico): Small explosions from the growing dome, associated rockfalls and volcanic earthquakes have continued to increase in amplitude and frequency during the past days and weeks.
Popocatépetl (Central Mexico): No big changes in activity have occurred. Emissions of gas-steam-sometimes small amounts of ash have remained less than 1 per hour on average (yesterday).
The today's seismogram shows tiny volcano-tectonic earthquakes and what seems to be a phase of slightly elevated tremor. A hot spot is visible on recent MODIS satellite imagery, corresponding to the growing lava dome, which continues to produce visible glow at night as well.
Telica (Nicaragua): The seismic swarm continues with no changes. Hundreds of tiny quakes up to magnitudes around 2 have been occurring for the past days, but no reports have become available (so far).
To read the rest of this story visit Volcano Discovery
2013-03-24