Reventador volcano, Ecuador: news & activity updates
Reventador volcano (Ecuador) activity update: lava flow on upper southern flank, numerous small to moderate explosions
Sunday Jul 21, 2013 01:26 AM | DOOR: T
Explosion from Reventador on 19 July. The red rectangle marks the lava flow (IGPEN)
Effusive and explosive activity at the surface as well as seismicity have continued to increase. A lava flow is traveling from the summit crater on the southern side towards the SE flank and there are numerous small explosions which create ash plumes of up to about 1 km height.
Drumbeat seismic signal from Reventador on 12 July (IGPEN)
In its latest special report, IGPEN summarizes the evolution since 12 July as follows:
- 12 July: so-called drumbeats seismic signal, typical for magma ascent, followed by signals of rockfalls - this is likely the start of the lava flow.
- 13 July: an explosion and few long period (LP) tremors (typical for fluid movements)
- 14 July: low activity
- 15 July: more explosions and LP quakes as well as a strong pulse of tremor (continuous vibration)
- 16 July: numerous LP quakes and volcanic tremor, few explosions
- 17 July: starting at 10:30 (local time), a series of small and moderate explosions starts, accompanied by LP quakes.
- 18 July: LP quakes, tremor and explosions.
Koppelingen / Bronnen:
Koppelingen / Bronnen:
- Evaluación de la actividad eruptiva del volcán Reventador (IGPEN)
Wednesday, Jul 17, 2013
The IG reported that in the last few days, increased seismic activity indicative of increased eruptions has been noticed at the volcano. Seismic data also indicated the presence of a lava flow travelling down the SW slope of Reventador's intracaldera cone. [meer...]
Sunday, Jul 07, 2013
An increase in seismic activity has occurred today. A steam plume can be seen rising above the volcano and a hot spot at the summit continues to be visible on MODIS satellite data, suggesting continuing lava extrusion. [meer...]
Monday, Jul 01, 2013
IGPEN characterizes the activity as moderate with seismic activity mainly related to internal fluid movements as well weak pulses of tremor and explosion signals. The volcano is hidden in clouds most of the time, but a thermal anomaly has become visible at the summit again on recent MODIS satellite data, possibly related to a recent small effusion of lava there. [meer...]
Friday, Jun 28, 2013
Weak eruptive activity continues with occasional steam and ash emissions during small explosions that create plumes reaching about 1 km. [meer...]