M4.1 earthquake after seismic swarm ESE of Bardarbunga volcano, Iceland

M4.1 earthquake after seismic swarm ESE of Bardarbunga volcano, Iceland

A small seismic swarm took place ESE of Bardarbunga volcano, Iceland from June 21 - 23, 2019. The seismicity then shifted NW of the volcano on June 24, with M3.3, M3.4 and M4.1.

The Icelandic Met Office has detected numerous small earthquakes from June 19 to 23 ESE of Bardarbunga volcano, an area active since the end of the eruption in February 2015. 

"The last eruption in this area started in February 1726 (+- 30 days) and ended in May 1726 (+- 30 days), but more eruptions might have taken place at this location without being known or detected by people in the past," Jón Frímann, an avid observer of volcanic activity on Iceland, noted.

"The depth of this earthquake swarm is considerable. Deepest earthquake recorded had a depth of 30.4 km (18.8 miles) and it is possible that it might be an error or poor location, other earthquakes recorded had a shallower depth. The crust in this location is up to 45 km (29.7 miles) thick according to measurements. It is not possible to know if this earthquake activity is going to result in an eruption. If an eruption happens it might happen without any warning and not a lot of earthquake activity before it happens."

Earthquakes detected on June 24 started with M3.3 at 13:09 UTC at a depth of 2.4 km (1.4 miles) and continued with 0.7, 0.2, 3.4, 0.9, 1.6, 2.3, 4.1, 2.2 and 0.7 detected at 21:56 UTC.

There were no volcanic tremors detected, IMO said.

A similar swarm of earthquakes was detected in the northern part of the Bardarbunga volcano caldera, Iceland on June 14, 2018.

The swarm started with a M4.1 at 13:14 UTC on June 14 which was followed by several smaller earthquakes. At 15:05 UTC, another earthquake with magnitude 4.9 occurred in the area as well as several smaller aftershocks.

The M4.9 quake is the largest earthquake since the end of Bardarbunga's last eruption in 2015 along with another one of the same magnitude that occurred on January 30, 2018.

Featured image credit: NASA Terra/MODIS


Bright fireball over Bosnia and Herzegovina

July 23, 2021

A bright fireball streaked through the night sky over Bosnia and Herzegovina at 00:10 UTC on July 22, 2021. The event was captured by 9 Global Meteor Network cameras. The fireball ended at the height of 35.2 km (21.9 miles) with a final velocity of 5 km/s....

Deadly floods and mudslides hit Tajikistan

July 22, 2021

At least 12 people have died after heavy rain caused severe floods and mudslides in Tajikistan's Sughd Region on July 19, 2021. According to the country's Committee of Emergency Situations, two people died, 15 homes and 3 km (1.8 miles) of roads were damaged...

Tropical Wave brings heavy rainfall to the Philippines

July 14, 2021

Could we have a new named storm system next week? Models still pull for some sort of development. The question is when, where and how strong. Robert Speta of the WestPacWx explains in the new video. Featured image and video courtesy WestPacWx...

Severe windstorm hits Gambia's capital Banjul

July 10, 2021

A severe windstorm hit Gambia's western region, including the capital Banjul on July 8, 2021. The storm hit around midnight (local time), destroying scores of homes in some of the country's western outskirts and leaving at least 10 people dead. 1 500 people...

1 million people affected by floods, 63 000 evacuated in Jiangxi Province, China

July 05, 2021

Several days of heavy rain and flooding in southeast China's province of Jiangxi have left nearly 1.08 million people affected and forced more than 60 000 to evacuate. According to Xinhua, floods in the province began on June 28. In 5 days to July 2, when the...


Comments

No comments yet. Why don't you post the first comment?

Post a comment

Your name: *

Your email address: *

Comment text: *

The image that appears on your comment is your Gravatar