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Posts treating: "earthquakes"

Thursday, 16 February 2017

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Earthquake activity increasing in Katla volcano again 

Iceland Volcano and Earthquake blog [2017-02-16 22:46:44]  recommend  recommend this post  (26 visits) info
For the last 24 hours (15 and 16.02.2017) earthquake activity has been increasing in Katla volcano. If it follows earlier pattern, a swarm of earthquakes with magnitude 3,0 or stronger might happen in Katla volcano in next few days or … Continue reading →

Earthquake swarm on the Reykjanes Ridge 

Iceland Volcano and Earthquake blog [2017-02-13 17:01:42]  recommend  recommend this post  (33 visits) info
Yesterday (12.02.2017) and today (13.02.2017) there has been a earthquake swarm on the Reykjanes ridge. For this area of the Reykjanes ridge, this earthquake swarm is normal. It doesn’t appear that it was due to magma movement and only tectonic … Continue reading →

Deep earthquake activity in Öræfajökull volcano 

Iceland Volcano and Earthquake blog [2017-02-08 12:27:46]  recommend  recommend this post  (1 visit) info
I haven’t written many articles about Öræfajökull volcano, since most of the time nothing happens in it. Öræfajökull volcano is located outside the main activity area in Iceland, like Esjufjöll and Snæfell (east Iceland). This three volcanoes form a volcano … Continue reading →

Strong earthquake activity on Kolbeinsey Ridge 

Iceland Volcano and Earthquake blog [2017-01-28 22:09:54]  recommend  recommend this post  info
Yesterday (27.01.2017) and today (28.01.2017) has seen some strong earthquake activity on Kolbeinsey Ridge. Largest earthquake in this swarm had the magnitude of Mb4,6 according to EMSC (information here). This area, or area close to it possibly had a dike … Continue reading →

317 years since the last rupture of the Cascadia megathrust 

Highly Allochthonous [2017-01-27 05:38:52]  recommend  recommend this post  (24 visits) info
At around 9pm on the 26th January 1700, the Cascadia subduction zone - a shallowly dipping thrust fault that runs more than 1000 km north from Cape Mendocino in Northern California to the vicinity of Vancouver Island, ruptured in an estimated magnitude 9 earthquake. Continue reading →

Katla volcano has magnitude 4,3 earthquake 

Iceland Volcano and Earthquake blog [2017-01-26 18:24:23]  recommend  recommend this post  info
Today (26.01.2017) at 15:14 UTC a magnitude 4,3 earthquake took place in Katla volcano. This earthquake was felt in Vík í Mýrdal (village) and nearby area. A second earthquake with the magnitude of 3,0 took place few moments after the … Continue reading →

Earthquake swarm under Grímsey island (Tjörnes Fracture Zone) 

Iceland Volcano and Earthquake blog [2017-01-26 02:43:13]  recommend  recommend this post  info
Yesterday (25.01.2016) there was an earthquake activity directly under Grímsey island (Wikipedia information). Earthquake swarms directly under Grímsey islands are uncommon, but they do happen from time to time. Current earthquake swarm is getting close to a mid-range scale (as … Continue reading →

Sharp increase in earthquake activity in Katla volcano 

Iceland Volcano and Earthquake blog [2017-01-24 01:06:55]  recommend  recommend this post  info
In the last 24 hours there has been a sharp increase of earthquakes in Katla volcano. This started yesterday with few minor earthquakes swarms with long quiet period between activity happening. This is what happens when magma is trying to … Continue reading →

Earthquake swarms in Katla volcano 

Iceland Volcano and Earthquake blog [2017-01-23 01:53:47]  recommend  recommend this post  info
Since Saturday 21 of January 2017 there has been unusual earthquake activity taking place in Katla volcano (for this time of the year). Small earthquake swarms have been scattered all over the caldera, largest earthquakes so far have only reached … Continue reading →

Two minor earthquake swarms on TFZ 

Iceland Volcano and Earthquake blog [2017-01-22 20:26:08]  recommend  recommend this post  info
Over the past two days minor earthquake swarms have been taking place on the TFZ. Largest earthquake in this swarm had the magnitude of 3,0. The earthquake activity in TFZ. Copyright of this image belongs to Icelandic Met Office. There … Continue reading →

Minor earthquake swarm south of Langjökull glacier 

Iceland Volcano and Earthquake blog [2017-01-22 19:59:36]  recommend  recommend this post  (1 visit) info
On Friday 20-Januar-2017 and on 21-January-2017 small earthquake swarm took place south of Langjökull glacier (in the area of Presthjúkar). Largest earthquake in this swarm had the magnitude of 2,8. The earthquake activity south of Langjökull glacier. Copyright of this … Continue reading →

Minor earthquake activity on TFZ (Tjörnes Fracture Zone) 

Iceland Volcano and Earthquake blog [2017-01-17 17:40:58]  recommend  recommend this post  (57 visits) info
It is quiet in Iceland at the moment. Nothing much to report, so I’m reporting this minor earthquake activity in TFZ. Few earthquakes have happened in TFZ for the last 48 hours, most earthquakes have been small and the largest … Continue reading →

Earthquakes in Katla volcano 

Iceland Volcano and Earthquake blog [2017-01-07 02:01:07]  recommend  recommend this post  (1 visit) info
On the 5th of January 2017 a magnitude 3,5 earthquake took place in Katla volcano. This earthquake happening in January is extremely rare thing, since Katla volcano is normally quiet this time of the year. That seems to … Continue reading →

The earthquake swarm in Hengill volcano 

Iceland Volcano and Earthquake blog [2017-01-07 01:34:54]  recommend  recommend this post  (1 visit) info
On the 4th of January 2017 a earthquake swarm took place in Hengill volcano. Largest earthquake had the magnitude of 3,7 and the second earthquake had the magnitude of 2,8. The largest earthquakes where felt in Reykjavík, Hveragerði … Continue reading →

An unremarkable year – seismically, anyway. 

Highly Allochthonous [2017-01-01 20:20:07]  recommend  recommend this post  (11 visits) info
Political pundits seem fond of geological metaphors such as ‘earthquake’, ‘seismic shift’, ‘tectonic shift’ and ‘tsunami’ – and they’ve certainly had plenty of reasons to use such metaphors in the past 12 months, as both my birth country and my … Continue reading →

Earthquake activity in Katla caldera 

Iceland Volcano and Earthquake blog [2016-12-27 16:04:28]  recommend  recommend this post  (26 visits) info
On Monday 26-December-2016 (second day of Christmas) a magnitude 3,3 earthquake happened in Katla volcano. This was the largest earthquake that day. Following this earthquake a few dozen smaller earthquakes have been taking place, the last ones in … Continue reading →

Short earthquake swarm in Katla volcano 

Iceland Volcano and Earthquake blog [2016-12-18 01:20:42]  recommend  recommend this post  (24 visits) info
On 17-December-2016 a small earthquake swarm took place in Katla volcano. Only few earthquakes took place and the largest had the magnitude of 3,3 and the second largest earthquake had the magnitude of 2,1. Other earthquakes where smaller … Continue reading →

Earthquake swarm in Katla volcano 

Iceland Volcano and Earthquake blog [2016-12-15 20:42:52]  recommend  recommend this post  (58 visits) info
Today (15-December-2016) a minor earthquake swarm took place in Katla volcano. Largest earthquake in this swarm had the magnitude of 2,0. Other earthquakes where smaller in magnitude. Due to bad weather in Iceland at the moment the sensitivity … Continue reading →

Magnitude 3,4 earthquake in Katla volcano 

Iceland Volcano and Earthquake blog [2016-12-14 22:56:41]  recommend  recommend this post  (30 visits) info
Today (14-December-2016) at 14:31 UTC a magnitude 3,4 earthquake took place in Katla volcano. No other earthquakes took place following this earthquake. The earthquake in Katla volcano. Copyright of this image belongs to Icelandic Met Office. This is … Continue reading →

Friday Photo: Pressure ridges from the Kaikoura earthquake 

Geology for Global Development [2016-12-02 10:00:35]  recommend  recommend this post  (2 visits) info
This photo was taken by Jack Williams from the University of Otago during mapping of the surface rupture from the recent Kaikoura earthquake. It shows pressure ridges in road from subsidiary strand of Hundalee Fault. You can read more about his field work on yesterday’s
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