Posts treating: "earthquakes"
Wednesday, 17 May 2017
For the past month (or so) there has been a constant earthquake activity close to Flatey island on the Tjörnes Fracture Zone (TFZ). This earthquake swarm has not been strong, with majority of the earthquakes only having the magnitude of … Continue reading →
Today on 6-May-2017 a magnitude 4,4 – 4,5 earthquake hit South Icelandic Seismic Zone (SISZ) at 12:08:58 UTC. This earthquake was felt over a wide area, a magnitude 3,3 earthquake also took place around one minute after the main earthquake. … Continue reading →
Why should an understanding of sediment transport distance and whether that sediment gets broken down into coarser gravel or finer sand be of any practical use?
Here is a good example from the Himalaya.
Abrasion-set limits on Himalayan gravel flux- Elizabeth H. Dingle, Mikaël Attal & Hugh D. Sinclair
Rivers sourced in the Himalayan mountain range carry some of the largest sediment loads
Today (19.04.2017) at 12:34 UTC an earthquake with the magnitude of 4,3 took place on the Reykjanes ridge. This earthquake was felt in Keflavík town and nearby areas. A swarm of aftershocks followed, none of them was above magnitude 3,0. … Continue reading →
Today (19.04.2017) a strong earthquake swarm started in Katla volcano. Largest earthquake in this swarm had magnitude of 3,0 and 3,1 other earthquakes that happened where smaller in magnitude. This is the strongest earthquake activity in Katla volcano since January … Continue reading →
During the night of 10-April-2017 at around 03:39 a magnitude 4,5 earthquake happened and started a earthquake swarm at same location, total number of recorded earthquakes is around 71 but that number is not confirmed as of yet. There is … Continue reading →
On the 30th of March-2017 there was some minor earthquake activity in Hofsjökull volcano. This was a minor earthquake activity, with the largest earthquake having the magnitude of 1,3 at depth of 4,5 km. The deepest earthquake had magnitude of … Continue reading →
During the night of 26-March-2017 there was an strong earthquake swarm about 80 km north of Kolbeinsey Island. This is around 250 km from the coast in north Iceland. It is not clear what is happening in this location, since … Continue reading →
Over the past few months there has been a slight increase in earthquake activity in Grímsvötn (Grímsfjall) volcano. This increase in activity strongly suggests that Grímsvötn are now in later stages of getting ready for an eruption. Earthquake activity in … Continue reading →
All of last week there has been a minor earthquake swarm close to Herðubreið volcano crater. Yesterday (17-March-2017) the earthquake swarm increased from several earthquakes an hour and up to around several dozen earthquakes an hour. Largest earthquake so far … Continue reading →
A small earthquake swarm took place in Tungnafellsjökull volcano during the night of 18-March-2017. All earthquakes that happened where minor in magnitude with many earthquakes having depth from 3 to 13 km. The earthquake activity in Tungnafellsjökull volcano (yellow dots, … Continue reading →
The next up on my Geology Through Literature thread is Candide by Voltaire published in 1759. You can get my complete thoughts on the book/story over at my website - Dinojim.com, but for here I will just go into the geological or basic scientific aspects that are brought up in the story.
I had heard about the geological content of Candide many years ago after I had read the story. So, I had it on my list to eventually go back and find the information in order to present it here. [...]
Yesterday (02.March.2017) there was an strong earthquake swarm on Reykjanes Ridge. This earthquake swarm took place around 540 km away from the coast of Iceland. The largest earthquake had the magnitude of 4,9 (EMSC information here), the second largest earthquake … Continue reading →
Before I start I want to make that clear that nothing of interest besides this earthquake activity is happening in Hekla volcano. Yesterday (02.03.2017) three earthquakes took place in Hekla volcano. Largest earthquake had the magnitude of 0,9 and other … Continue reading →
For the past few days there has been a earthquake activity in Katla volcano. This is in two forms, as earthquake swarm that are taking place and earthquakes that spread around the caldera and the volcano. The earthquake activity in … Continue reading →
Yesterday (22.02.2017) there was an earthquake swarm in the Presthnjúkur area, in a area not far from Skjaldbreið volcano. Earthquake activity yesterday close to Skjaldbreið. Copyright of this image belongs to Icelandic Met Office. This was a minor earthquake swarm, … Continue reading →
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 →
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 →
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 →
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 →