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12th May 2016 17:03
Link to Post #221
Re: CotoPaxi Volcano - Ecuador seismic status
Eruption which started near 1600 continued thru the nite, mostly stopping with strong continued instability being noted in the seismographic 0900-1000 am local this morning:
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13th May 2016 15:22
Link to Post #222
Re: CotoPaxi Volcano - Ecuador seismic status
Eruption continued through the night - started diminishing 0400-0600 am local time -
By 0800 am local time, the intensity had dropped to continual high frequency vibration.. quite different than in previous days. This type of pattern has been seen before on the volcanoes during periods of regional instability (stress build-up in the subterranean rock strata).
You can see in the Tungurahua volcano, quite to the south of CotoPaxi, the spikey, plus pulse activity periods also happening during the late evening and early morning hours:
As the early morning sun rose, the large double pulsing in Tungurahua started to diminish, BUT there was an increase in HIGH frequency activity ALSO in the Tungurahua volcano:
Something to keep an eye on today this Friday the 13th..
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13th May 2016 22:30
Link to Post #223
Re: CotoPaxi Volcano - Ecuador seismic status
Looking at the afternoon seismic graphics of both volcanoes, the 6 hour cycle appears to be present again.. Cotopaxi calmed down slightly, but started activity again around 1600 pm local, and Tungurahua did the same although some explosive events were 45 minute sooner.. Could be something up South of Ecuador is moving around deep..
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18th May 2016 14:11
Link to Post #224
Re: CotoPaxi Volcano - Ecuador seismic status
A large 6.7 quake struck in the upper NW of Ecuador near where the 7.8 occurred - using the Tungurahua seismographic to show this and the vibration prior:
0258 local at the seismograph starts the event
it lasts for about 7 minutes and then 3 minutes later another pulse lasting 2 minutes
and
then 4 minutes later a smaller pulse.
6 minutes later a much smaller pulse which lasted for two minutes.
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Prior to the quake event at about 01:45 am local there was a "triple" pulse event which was odd (haven't seen that before except during eruptions), followed by about 12 minutes afterwards, a very sharp and abrupt "spike" pulse - that was the sequence immediately before.
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North of Tungurahua, up at CotoPaxi, both seismic events and eruptive activity was happening:
Slow-wave (hard to see) starting at 1940 pm local time. At 2021 pm local time eruptive activity picked back up.
The large seismic event (the quake) can be seen mixed in (increased spikey activity) with the eruptive activity prior to 0300 am local time.
Last edited by Bob; 18th May 2016 at 14:23.
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18th May 2016 14:42
Link to Post #225
Re: CotoPaxi Volcano - Ecuador seismic status
Up on the ring of fire, up on the NW coast of the US, the event can be seen on two (selected) of the seismographs there (Mt. Hood).
It is interesting understanding the "connectedness". And seeing it for oneself on sensitive equipment. (we are told by 'experts' the volcanoes on the ring of fire don't see each other's activity.. hmm)
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18th May 2016 17:53
Link to Post #226
Re: CotoPaxi Volcano - Ecuador seismic status
The second quake as seen on the Tungurahua seismographic followed by the CotoPaxi seismographic - (BTW, there is a feeling of a low rumble, like a big truck passing in an elevated carpark, that type of low frequency rumble. My cats are a bit freaked out..
You can see the quake and an aftershock(?) or a large event in the CotoPaxi volcano afterwards as well:
This seismographic gives us good detail of what's happening in the north of Ecuador (as well).
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31st May 2016 17:05
Link to Post #227
Re: CotoPaxi Volcano - Ecuador seismic status
Continued activity from the last post (18th) till last nite, cycling mostly during the night, diminishing during the day..
This is the current set of seismographics :
Spikey activity (rock breaking), and explosive events are able to be seen. Eruptive events are minimal at the moment.
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1st June 2016 20:00
Link to Post #228
Re: CotoPaxi Volcano - Ecuador seismic status
Large seismic events noted:
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4th June 2016 17:25
Link to Post #229
Re: CotoPaxi Volcano - Ecuador seismic status
After the large series of seismic events regionally, the eruptive events at CotoPaxi appear to have shifted from a night-time cycle to a daytime cycle.
This switching appeared to have started a few days ago. Coincidental maybe, but there has been a change in solar particle stream energy level directed earthward. (see the coronal hole thread in the solar activity reports part of the website for details).
Yesterday evening/last night:
Today:
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6th June 2016 16:24
Link to Post #230
Re: CotoPaxi Volcano - Ecuador seismic status
Continued pattern of cycle switch with CotoPaxi - although there were a few night time events, the pattern of events appears to be now running on the daytime cycle.
Night seismic monitor graph:
Day seismic monitor graph:
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9th June 2016 15:23
Link to Post #231
Re: CotoPaxi Volcano - Ecuador seismic status
The switch in cycles happened again with CotoPaxi - starting on the 8th, right after a large regional quake (1530),
and during the night
and into today
The seismic pulse pattern output started to take on a regular sputtering emission for about an hour, around 0700 local time.
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12th June 2016 05:22
Link to Post #232
Re: CotoPaxi Volcano - Ecuador seismic status
Eruptive pattern continues in the night-time cycle with brief 2-3 hours of "off time" during the daytime, usually the afternoon before resuming at night.
A strong seismic pulse was noted shortly after midnight local time which lasted for 1/2 a minute of increased rumbling activity.
After the "pulse" the recording network went OFFLINE.
Last edited by Bob; 15th June 2016 at 16:42.
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15th June 2016 16:41
Link to Post #233
Re: CotoPaxi Volcano - Ecuador seismic status
Background seismic activity remains high despite the cycling appearing (night-time eruptive activity, diminishing by morning, and resuming as the sun goes down...)
Large seismic events have been picked up in both CotoPaxi's seismic monitors and Tungurahua volcano's seismic monitors at apx 1036am local.
Background microseismic events monitored on the Tungurahua's seismic monitors at the moment remains LOW.
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16th June 2016 03:17
Link to Post #234
Re: CotoPaxi Volcano - Ecuador seismic status
1400-1600 hours local time today (see post above for the seismic graphic), the eruptive pattern took a stronger emission pattern, which then subsided to a moderately low level of seismic micro-tremor. Microtremor as of this posting is still remaining constant.
We're loading this camera image to see if an eruption during the night becomes visible:
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16th June 2016 05:33
Link to Post #235