अप्रैल 18, 2013 की ज्वालामुखी गतिविधि - एटना विस्फोट + सामान्य दैनिक रिपोर्ट

यह (लगभग) दैनिक पोस्ट करने के लिए दुनिया भर में ज्वालामुखी की गतिविधि में परिवर्तन का पालन करना चाहता है.
इस पोस्ट में के भूविज्ञानी Rodger विल्सन जो ज्वालामुखी seismicity और आर्मंड Vervaeck के माहिर ने लिखा है. अगर हम इसके बारे में नहीं लिखे हैं तो कृपया हमें नई या परिवर्तित गतिविधि के बारे में बताने में संकोच न करें। -

अप्रैल 18, 2013 ज्वालामुखी गतिविधि

सामान्य दैनिक रिपोर्ट

भूकंपीयता अधिक रहती है नेव्हाडो डेल Ruiz volcano (Colombia) (station OLLZ) after a magnitude M4.0 earthquake struck the volcano last night. Pulses of higher amplitude volcanic tremor have become apparent at Ruiz during the past 24 hours. INGEOMINAS reports that the volcano continues to deform, as evidenced by last nights large volcano-tectonic event.

The tempo of volcanic earthquakes at both Telica (Nicaragua) (station TELN) and neighboring San Cristobal (station CRIN) continues at a rapid pace. Event magnitudes have increased this morning at Telica volcano.

Another pulse of small earthquakes (maximum magnitude M1.0) is currently taking place at न्यूबेरी volcano (Cascade Range) (OR) (station CPCO). The most recent locatable earthquake occurred outside Newberry caldera along the upper Northwest Rift zone.

Newberry_seismicity_20130418

कहीं और, ...

Still no update (in English anyway!) from KVERT pertaining to eruptive/seismic behavior of the five active Kamchatkan ज्वालामुखियों: Tolbachik, Sheveluch, Kizimen, Bezymianny, तथा Karymsky.
Recent MODIS satellite thermal imagery suggests that a collapse/explosive event may have occurred overnight at Sheveluch, as a two-pixel "hotspot" is centered on the volcano today. A multi-pixel thermal anomaly is associated with the recently emplaced (since November 2012) Tolbachik lava field.

Tolbachik_MODIS_Hotspots_20130418

Sheveluch_MODIS_Hotpots_20130418

Aleutian wind has subsided enough overnight to reveal small local earthquakes continue at Korovin volcano (station KOWE). Small shallow earthquakes also continue at लियाम्ना ज्वालामुखी (अलास्का रेंज) (स्टेशन INE).

At least three small earthquakes are identifiable on seismograms at माउंट रैनियर volcano (Cascade Range) (station RCS) this morning. Small earthquakes have become more frequent in recent days at माउंट सेंट हेलेंस volcano (station VALT). The events don't seem correlative with meteorological conditions (which can affect glacial activity). A flurry of small earthquakes also occurred in the Tehama caldera south of Lassen पीक volcano (CA) overnight.

Lassen_Peak_earthquakes_20130418

Earthquakes continue along the southern boundary of the लांग घाटी caldera (CA) (station MCS) today. The "rapid-fire" series of events on the seismic record are due to blasting (timed charges) at nearby mines.

Long_Valley_Caldera_seismicity_20130417

Explosions, hybrid earthquakes, rockfalls, and small pyroclastic flows continue to be frequent at कोलीमा volcano (Mexico). An episode of stronger volcanic tremor occurred overnight at Popocatepetl volcano. There has been no report from CENAPRED mentioning any eruptive activity associated with the occurrence of the tremor.

Popocatepetl_20130417

Volcanic tremor (and strombolian activity?) strengthened for a time at Pacaya volcano (Guatemala) (station PCG) last night. Activity at the volcano has since returned to frequent degassing earthquakes. Inhabitants near Fuego volcano (station FG3) again reported loud jet-like or "huffing" noises coming from the volcano overnight (in-conjunction with strombolian activity there). Hybrid earthquakes intermix with rockfall and degassing events at सांता मारिआ volcano (station STG3) this morning.

Fuego_20130418

ज्वालामुखीय कंपन पर अस्थिर बनी हुई है Masaya volcano (Nicaragua) (station MASN), though no explosion-type signals are apparent on records during the past 24 hours.

छोटे स्थानीय भूकंप seismograms पर स्पष्ट कर रहे हैं Machin (कोलम्बिया) (स्टेशन CIMA), Sotara (स्टेशन SOSO), और Galeras (with gas emission signals too!) (station CUVZ) volcanoes.

The swarm of volcano-tectonic events appears over at टंगुराहुआ volcano (Ecuador) (station RETU). The swarm of small events had continued for several days at the volcano. A burst of (volcanic?) earthquakes occurred early this morning at Cotopaxi volcano (station CO1V). Co-eruptive seismicity remains strong at Reventador ज्वालामुखी (स्टेशन शंकु).

ज्वालामुखी कांपना और पर बहना व्हाइट द्वीप volcano (New Zealand) again today.

हाल का ओएमआई उपग्रह डेटा SO2- समृद्ध पंख दर्शाता है at or near: Tolbachik, Popocatepetl, Turrialba (or Poas) (Costa Rica), Nevado Del Ruiz, Mount Etna (Italy), Nyiragongo (DRC), Tambora (from Paluweh?) and Krakatau (Java), and Ambrym (Vanuatu) volcanoes. MODIS satellite thermal imagery depicts "hotspots" at: Tolbachik, Sheveluch, Mount Etna and Stromboli (Italy), Yasur (Vanuatu) and Paluweh (eastern Java) volcanoes.

Images are now part of a second part to make this document a little lighter. Click on this image to be deviated to this page.

2013 04-18-19.54.55 में स्क्रीन शॉट


Etna eruption coverage

अद्यतन 14: 45 यूटीसी
On this INGV infrared picture the lava streams descending the crater can be clearly seen (2 white patches)

2013 04-18-16.45.00 में स्क्रीन शॉट

अद्यतन 14: 40 यूटीसी
An eruption during the daylight hours is often hard to see, especially when clouds are obscuring views. The image below shows however he smoke of the new lava streams descending from the crater.

2013 04-18-16.37.27 में स्क्रीन शॉट

अद्यतन 13: 20 यूटीसी
ETNA is now erupting ! Unfortunately rather cloudy.

2013 04-18-15.20.13 में स्क्रीन शॉट

अद्यतन 09: 12 यूटीसी
It may happen now any moment as a burst of heat escapes from the crater (see infrared image below - white = hottest)

2013 04-18-11.11.26 में स्क्रीन शॉट

We have the impression that Etna will soon go in eruption again. Grey smoke is leaving the crater, volcanic earthquakes are rising in number.
Click on the images below to go to the appropriate webcam pages.

2013 04-18-10.23.14 में स्क्रीन शॉट2013 04-18-10.23.51 में स्क्रीन शॉट

2013 04-18-10.51.34 में स्क्रीन शॉट

टिप्पणियाँ

  1. Gilda Fulco कहते हैं:

    I visited Mount Etna in 1981, and went right up to as far as we were allowed to go, in my space boots and heavy rubber coat. It was exhilarating for me, and I want to do it again one of these days, with my Son, who was not yet born then. I also remember that we were called back to quickly board the buses back downhill, as it was spitting fire all over the place. the lava rocks were smoking under my feet, and it was hard to breathe. Later on I heard that a couple of Japanese tourists were killed by the sulfur, trying to take pictures beyond the ropes, laying over the crater's edge. Sad but true that the signs were saying to stay out in four languages for all to understand. You can't fix "stupid"! Anyway, always been fascinated with volcanoes. Maybe it has to do that my father's family is from not too far away, a town called "Calascibetta". I heard stories from my Mother that they could see the mountain erupting on a very clear day from afar. Not sure if that is true. Love this site! Thanks for sharing , and stay safe! Gilda from Tacoma, WA

  2. रिचर्ड Rodger विल्सन कहते हैं:

    Mr. Johnson,

    If I feel a particular volcano is showing potential pre-eruptive behavior, it comes first, regardless of its location (which I always annotate!). Otherwise,...I move systematically around the Pacific rim from Kamchatka, through the Americas, and then over to New Zealand daily. You won't "read about one volcano three different times",...I promise!

    अपने पाठकों के लिए धन्यवाद!

    Rodger

  3. R Johnson कहते हैं:

    I am a jr. high teacher in the US. I have my students take turns reporting on earth science topics from around the world each Friday. Your site has the potential to be an excellent resource for them, but it will be difficult for them to follow, as it jumps around quite a bit... would you consider posting info by region or country? I.e, list all of the activity for each region together in the same paragraph. E.g., all South American activity together, all Cascade acivity together, etc. My jhs students are not very good with geography, so clustering the data will help them learn where things are, and will also help them understand if they are reading about one volcano three times, or about three different volcanoes in the same country (as an example.)

    आपके विचार करने के लिए धन्यवाद!
    R.A. Johnson, IL USA

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