July 26 , 2015. English . Kick ’em Jenny, Guagua Pichincha , Cleveland .
July 26 , 2015.
Kick ‘em Jenny, Grenada :
‘Significant decline’ in Kick ’em Jenny seismic activity.
Orange alert remains in effect at this time.
The UWI Seismic Research Centre (SRC) issued the following update around 9:30 a.m. on Saturday via its Facebook page.
« Since 4:00 p.m. 24th July to 6:30 a.m. 25th July, there have been less 20 earthquakes associated with the Kick-‘em-Jenny system. This represents a significant decline in the level of earthquakes associated with the activity so far. »
The SRC, which monitors earthquakes, volcanoes and tsunamis for the English-speaking Eastern Caribbean, said it will continue to monitor throughout the day to develop a better understanding of the current state of the system.
On Thursday, the islands of Barbados, Grenada, St. Vincent and the Grenadines and Trinidad and Tobago were placed on orange alert after heightened seismic activity was detected around the Kick ’em Jenny volcano, 8 km north of Grenada. On Thursday night, a small eruption was recorded by the SRC, in addition to the first one recorded on July 22.
It is understood that the orange alert remains in effect pending a further update.
Source : loopnewsbarbados.com
Guagua Pichincha , Equateur :
SPECIAL REPORT on the Guagua Pichincha No. 6-2015
Seismic activity of Guagua Pichincha volcano
The Geophysical Institute of the National Polytechnic School (IG-EPN) continues constant monitoring of the activity of Guagua Pichincha volcano. In the Special Report No. 1, issued on April 2, 2015, the IG-EPN had mentioned recording 15 seismic events between 5 and 9 March and 58 events on March 31 ; most of them long-period type (LP) and connected with the movement of fluids within the volcano.
In the Special Report No. 2, issued on April 18, 2015, the appearance of 79 events volcano tectonic type (VT), related to the fracturing of rocks in the volcano was reported. With the Special Report No. 3, published on April 23, 2015, were recorded 2 phreatic explosions, April 20 and the occurrence of 33 events type VT and 5 type LP on April 21.
The Special Report No. 4, published on April 29, 2015, noted a tremor signal started to 6:15 (TL) and ended at 9:15 (TL). The tremor is a long-term seismic signal, which is usually detected in the active volcanoes and which is related to the vibration of the fluid in volcanic pipes.
From May, thirteen small swarms were detected, over 30 earthquakes each. Since July 22, 2015, 05h00TL until today 19h00TL July 23, 2015 there were 59 volcano-tectonic events (VT), these events are related to fracture of rocks in the crater. We can observe the seismic recording of the station PINO. This swarm of volcano-tectonic events is the fifth of July and the twenty-ninth in 2015.
Seismogram of PINO station from 22 to 23.07.2015. You can see inside the red rectangle several tectonic events on Pichincha volcano.
Most of these events are located in the volcano area. They have depths ranging from 4.5 km to 2.5 km beneath the crater and sizes are between M 0.36 and M 0,78 .
Source : IGEPN
Photo : ecuavisa.com
Cleveland , Alaska :
Summit Elevation 5676 ft (1730 m)
Current Volcano Alert Level: WATCH
Current Aviation Color Code: ORANGE
Cleveland Volcano from near the site of station CLES at the southeast base of the volcano. A typical gas and steam plume rises above the summit crater.
Low-level unrest continues at Cleveland. No unusual activity has been observed in clear satellite or web camera images since the explosion on July 21. A local field crew made an observation overflight yesterday and noted a thin layer of ash on the upper flanks of the volcano and vigorous steaming from the summit area, confirming the small size of the explosion last week.
Source : AVO
Photo : Lyons, John , 7 Aout 2014