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Posts treating: "earthquakes"

Monday, 16 October 2017

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Earthquake apps and post-quake observations 

Oakland Geology [2017-10-16 17:02:24]  recommend  recommend this post  (9 visits) info
Seems like disaster is in the air every October. This year the catastrophe is wildfire in the North Bay, bringing up memories of our own turn in the line of fire this very week in 1991. Yesterday the local paper published an article by Seung Lee that explicitly linked the October fires of 2017 to […]

Minor earthquake swarm on Kolbeinsey Island 

Iceland Volcano and Earthquake blog [2017-10-09 02:05:14]  recommend  recommend this post  info
Today (Sunday 08-October-2017) a minor earthquake swarm took place in Kolbeinsey Island. Only three earthquakes where detected, but that does not rule out that more earthquakes happened but where not detected due to distance from land and the SIL network. … Continue reading →

Sulphur smell felt from Múlakvísl glacier river 

Iceland Volcano and Earthquake blog [2017-10-08 18:20:10]  recommend  recommend this post  info
On the 3-October-2017 there was an increase in earthquake activity in Katla volcano as I wrote about here. This activity was deeper than suspected as during the night there was an small harmonic spike as was mentioned in this comment … Continue reading →

Ongoing earthquake swarm in Tjörnes fracture zone (TFZ) 

Iceland Volcano and Earthquake blog [2017-10-07 01:36:18]  recommend  recommend this post  info
Currently there is an ongoing earthquake swarm in Tjörnes Fracture Zone. This earthquake swarm has been going on since 05-October-2017. Over 120 earthquakes have happened so far. Largest earthquakes have had the magnitude of 3,9 (05-October), 3,5 (06-October), 3,0 (06-October). … Continue reading →

Magnitude 3,4 earthquake in Öræfajökull volcano 

Iceland Volcano and Earthquake blog [2017-10-03 20:06:07]  recommend  recommend this post  (18 visits) info
Today (03-October-2017) a magnitude 3,4 earthquake took place in Öræfajökull volcano. So far this earthquake has not resulted in any more earthquake activity. The earthquake activity in Öræfajökull volcano. Copyright of this image belongs to Icelandic Met Office. This is … Continue reading →

Increase in earthquake activity in Katla volcano 

Iceland Volcano and Earthquake blog [2017-10-03 03:13:20]  recommend  recommend this post  (9 visits) info
On the 01-October-2017 there was an increase in earthquake activity in Katla volcano. This increase continues but bad weather is making it difficult to monitor this activity. The largest earthquakes so far had the magnitude of 2,6 (two) all other … Continue reading →

Earthquake swarm in Tjörnes Fracture Zone (east of Grímsey Island) 

Iceland Volcano and Earthquake blog [2017-10-03 01:33:39]  recommend  recommend this post  (11 visits) info
Yesterday (01-October-2017) an earthquake swarm took place in Tjörnes Fracture Zone east of Grímesy Island. Largest earthquake in this swarm had the magnitude of 2,6 all other earthquakes where smaller in magnitude. The earthquake swarm in Tjörnes Fracture Zone yesterday. … Continue reading →

Continued earthquake activity in Öræfajökull volcano 

Iceland Volcano and Earthquake blog [2017-09-30 01:41:25]  recommend  recommend this post  info
On 28 and 29th of September 2017 an earthquake activity took place in Öræfajökull volcano. Most of the earthquake that have happened are minor in magnitude, one magnitude 2,5 earthquake took place and on 29th September a magnitude 2,0 earthquake … Continue reading →

Earthquake swarm west of Langjökull glacier 

Iceland Volcano and Earthquake blog [2017-09-29 02:30:36]  recommend  recommend this post  (1 visit) info
Yesterday (28-September-2017) a earthquake swarm has been taking place west of Langjökull glacier, it is close to a volcano named Presthnjúkar. It is the same system and inside its fissure swarm. The area in question has known faults from the … Continue reading →

Sharp increase in earthquake activity in Öræafjökull volcano 

Iceland Volcano and Earthquake blog [2017-09-14 19:36:14]  recommend  recommend this post  (60 visits) info
There has been increasing earthquake activity in Öræfajökull volcano in recent months. This increase is slow but it seems to be happening at faster phase to my surprise. For the first time the earthquake activity forms a direction along a … Continue reading →

Magnitude 5,9 earthquake deep on the on the Reykjanes ridge on 10-September-2017 

Iceland Volcano and Earthquake blog [2017-09-11 19:39:13]  recommend  recommend this post  (99 visits) info
Yesterday (10-September-2017) at 21:40 UTC a magnitude (Mw) 5,9 earthquake (EMSC information here) took place deep south on the Reykjanes ridge. No aftershocks have appeared on USGS or EMSC that I am aware of. They must have happened but due … Continue reading →

M 8.0 - west central Mexico coast offshore Chiapas 

Active Tectonics Blog [2017-09-08 07:29:00]  recommend  recommend this post  (27 visits) info
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A great earthquake has occurred off of the west coast of Mexico offshore of Chiapas. It is tsunamigenic. It looked to be along the subduction interface, but the focal mechanism and depth suggest normal faulting in the slab below. See seismicity map for more commentary about normal faults and this cross section.I am accumulating some links here. Check back for more. From USGS Recording at ASU IRIS Teachable Moment materials for this earthquake Links: USGS main page on the event USGS finite [...]

Earthquake activity in Vestmannaeyjar island volcano (off the coast) 

Iceland Volcano and Earthquake blog [2017-08-31 02:40:15]  recommend  recommend this post  info
For the past two days there has been a minor earthquake activity in Vestmannaeyjar island volcano. This is the first time since 2015 an earthquake activity appears in Vestmanneyjar island volcano. This earthquake activity was minor, with largest earthquake only … Continue reading →

Minor earthquake swarm on Reykjanes ridge close to Geirfuglasker island 

Iceland Volcano and Earthquake blog [2017-08-23 02:34:42]  recommend  recommend this post  (2 visits) info
Yesterday (22-August-2017) a minor earthquake swarm took place not far from Geirfulgasker island on the Reykjanes ridge (no GVP profile). This was a minor earthquake swarm as it was detected by Icelandic Met Office SIL network. There is a chance … Continue reading →

Minor earthquake swarm on Reykjanes ridge not far off the coast 

Iceland Volcano and Earthquake blog [2017-08-16 01:26:07]  recommend  recommend this post  info
Yesterday (14-August-2017) and today (15-August-2017) there has been a minor earthquake activity around 60 km off the coast on Reykjanes ridge. The area has a volcano (not named as such), but the area is often named after island named Eldeyjarboði. … Continue reading →

Magnitude 4,5 earthquake in Katla volcano 

Iceland Volcano and Earthquake blog [2017-07-27 01:35:42]  recommend  recommend this post  info
Today at 22:18 UTC (26-July-2017) a earthquake with the magnitude of 4,5 took place in Katla volcano. A earlier earthquake happened at 22:15 UTC and it had the magnitude of 3,2. The magnitude 4,5 earthquake was felt in Vík í … Continue reading →

Strong earthquake swarm on Reykjanes peninsula 

Iceland Volcano and Earthquake blog [2017-07-26 17:26:05]  recommend  recommend this post  (3 visits) info
Currently there is a strong earthquake swarm on the Reykjanes peninsula. Largest earthquake so far was a magnitude 4,0 with second largest earthquake having magnitude of 3,8. This earthquake swarm is currently ongoing. Over 150 earthquakes have been detected so … Continue reading →

Earthquake activity in Katla volcano 

Iceland Volcano and Earthquake blog [2017-07-24 01:33:54]  recommend  recommend this post  info
On Friday 22-July-2017 and on Saturday 23-July-2017 earthquake swarm activity took place inside Katla volcano caldera. Largest earthquake on Friday 22-July was magnitude 3,1 and on Saturday a magnitude 3,2 earthquake took place. Before and after the main earthquakes a … Continue reading →

Tsunami History Preserved In Indonesian Cave Deposits 

Reporting on a Revolution [2017-07-22 05:57:00]  recommend  recommend this post  (104 visits) info
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How would you know if a coastline had been inundated by a tsunami say 5000 years ago? Well, a tsunami carries sediment stripped from the ocean bed and deposits this material over the flooded coastline, beyond the range of what a regular storm would. The problem is that such deposits have poor preservation potential and over time get eroded away. There are however some environments where

Magnitude 3,1 earthquake in Krýsuvík volcano 

Iceland Volcano and Earthquake blog [2017-07-15 21:42:22]  recommend  recommend this post  (35 visits) info
During the night of 15-July-2017 a magnitude 3,1 earthquake took place in Krýsuvík volcano. This earthquake does not seems to be connected to the volcano it self, rather the tectonic forces that are common in the Reykjanes rift zone that … Continue reading →
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