Earthquake Activity Thread

[john pike]

[john pike]

7.1 - Southern East Pacific Rise 2014-10-09 02:14:32 UTC

PAGER - GREEN ShakeMap - I

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Google Earth KML

Summary

Location and Magnitude contributed by: USGS National Earthquake Information Center

General

Location

32.115°S 110.779°W depth=15.5km (9.6mi)

Nearby Cities

1. 565km (351mi) SSW of Hanga Roa, Chile
2. 3426km (2129mi) W of Lebu, Chile
3. 3433km (2133mi) W of Ancud, Chile
4. 3443km (2139mi) W of Chonchi, Chile
5. 2041km (1268mi) ESE of Adamstown, Pitcairn

Related Links

• Additional earthquake information for Chile
• Earthquake Summary Poster
• View location in Google Maps

Tectonic Summary

The October 9, 2014 M 7.1 earthquake near the Southern East Pacific Rise occurred as the result of oblique thrust faulting in the complex plate boundary region at the intersection of the Pacific, Nazca and Antarctic plates, nearly 600 km to the south of Easter Island. At the location of the earthquake, some 100 km to the east of the East Pacific Rise, the Nazca plate diverges from the Pacific at a rate of nearly 15 cm/yr, in a direction slightly south of due east. Some authors identify a small microplate in this region, called the Juan Fernandez plate; the October 9 earthquake occurred near the northern boundary of this tectonic block with the broader Nazca plate.

Moderate sized earthquakes are not uncommon in this region of the East Pacific Rise, though events of this size are rare.  Fifteen other M 6+ earthquakes have occurred within 500 km of the 2014 event over the past century – until today none had been larger than a M 7.0 in March 1920, 400 km due south of the October 9, 2014 earthquake. Because of the remote location away from any land, none of these events are known to have caused damage. The M 7.1 2014 event was followed by an M 6.6 aftershock 18 minutes later.

 

http://earthquake.usgs.gov/earthquakes/eventpage/usb000sk6k#summary

Edited October 9, 2014 by john pike

[john pike]

http://www.emsc-csem.org/Earthquake/earthquake.php?id=403483

 

M 5.5 - SCOTLAND, UNITED KINGDOM - 2014-10-09 19:15:21 UTC

 

 

Edited October 9, 2014 by john pike

[If Wishes made Weather]

Not sure if this is real, or a ghost in the machine, but somewhere between the islands of Eigg and Coll, according to the EMSC, a mag 5.5 about an hour and a half ago:

 

M 5.5RegionSCOTLAND, UNITED KINGDOMDate time2014-10-09 19:15:21.2 UTCLocation56.70 N ; 6.39 WDepth120 kmDistances308 km N of Douglas, Isle of Man / pop: 26,218 / local time: 20:15:21.2 2014-10-09 
214 km NW of Edinburgh, United Kingdom / pop: 435,791 / local time: 20:15:21.2 2014-10-09 
95 km NW of Lochgilphead, United Kingdom / pop: 2,272 / local time: 20:15:21.2 2014-10-09 
65 km NW of Oban, United Kingdom / pop: 8,081 / local time: 20:15:21.2 2014-10-09 

[john pike]

http://www.emsc-csem.org/Earthquake/alert/?id=UND21;LDG&date=2014-10-09

 

its looks real tim

 

just a wait to confirm size

[If Wishes made Weather]

Hell of a depth to it Jon -  the Moine thrust runs just there.

[john pike]

hi tim

 

its certainly an odd one

[marksiwnc]

What is the biggestearthquake recorded in the UK?

[john pike]

the readings are picking error readings now so we have to wait

 

to see what it shows once a seismologist checks it

 

http://www.emsc-csem.org/Earthquake/alert/?id=pf318;2014&date=2014-10-09

 

http://www.emsc-csem.org/Earthquake/alert/?id=UND21;LDG&date=2014-10-09

 

emsc have logged it but wait a while to check later

 

http://www.earthquakes.bgs.ac.uk/earthquakes/UKsignificant/index.html  (uk big quakes)

Edited October 9, 2014 by john pike

[Allseasons-Si]

Didn't we have a 5.1 last week(or there abouts) that showed in dumphries and galloway,then for it to be removed,that was on EMSC.

[john pike]

hi allseasons

 

we did but only one station picked that up

 

we have a few showing it this time

 

however it could be an error

 

just have to wait for it to be checked..

[Polarlow]

Interesting video on you tube !!!!   M5.5 Earthquake Scotland....

 

https://www.youtube.com/watch?v=kCVYnX3ON3k

[john pike]

Earthquake in China on Saturday, 11 October, 2014 at 11:46 (11:46 AM) UTC.

Description

The rescue and relief team in Jinggu County said the quake affected more than 300 thousand people. One person was killed and 324 injured. And some seven thousand houses collapsed in the quake. 4,500 troops have been deployed to join the rescue and relief operation. Also sent to the quake zone are ten thousand tents and nearly seven thousand cotton quilts. More than 110 thousand people were evacuated from the worst-hit Puer and Lincang cities.

 

http://hisz.rsoe.hu/alertmap/site/index.php?pageid=event_desc&edis_id=EQ-20141011-45600-CHN

 

http://earthquake.usgs.gov/earthquakes/eventpage/usb000skzt#summary

[john pike]

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M6.3 - 154km ENE of Hachinohe, Japan 2014-10-11 02:35:46 UTC

PAGER - GREEN ShakeMap - IV DYFI? - III

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Google Earth KML

Summary

Location and Magnitude contributed by: USGS National Earthquake Information Center

General

+-

30 km

20 mi

Powered by Leaflet

40.987°N, 143.216°E
Depth: 13.5km (8.4mi)

Event Time

1. 2014-10-11 02:35:46 UTC
2. 2014-10-11 12:35:46 UTC+10:00 at epicenter
3. 2014-10-11 03:35:46 UTC+01:00 system time

Location

40.986°N 143.216°E depth=13.5km (8.4mi)

Nearby Cities

1. 154km (96mi) ENE of Hachinohe, Japan
2. 160km (99mi) ENE of Misawa, Japan
3. 165km (103mi) SSE of Shizunai, Japan
4. 171km (106mi) E of Mutsu, Japan
5. 663km (412mi) NNE of Tokyo, Japan

Related Links

• Additional earthquake information for Japan
• View location in Google Maps

Seismotectonics of Japan and Vicinity

Japan and the surrounding islands straddle four major tectonic plates: Pacific plate; North America plate; Eurasia plate; and Philippine Sea plate. The Pacific plate is subducted into the mantle, beneath Hokkaido and northern Honshu, along the eastern margin of the Okhotsk microplate, a proposed subdivision of the North America plate. Farther south, the Pacific plate is subducted beneath volcanic islands along the eastern margin of the Philippine Sea plate. This 2,200 km-long zone of subduction of the Pacific plate is responsible for the creation of the deep offshore Ogasawara and Japan trenches as well as parallel chains of islands and volcanoes, typical of Circumpacific island arcs. Similarly, the Philippine Sea plate is itself subducting under the Eurasia plate along a zone, extending from Taiwan to southern Honshu that comprises the Ryukyu Islands and the Nansei-Shoto trench.

 

http://earthquake.usgs.gov/earthquakes/eventpage/usb000skys#summary

[john pike]

(Reuters) - A magnitude 7.3 earthquake struck late on Monday off the coast of El Salvador and Nicaragua and was felt across Central America, killing at least one person, but there were no immediate reports of major damage.

http://www.reuters.com/article/2014/10/14/us-earthquake-el-salvador-idUSKCN0I308P20141014

http://hisz.rsoe.hu/alertmap/site/index.php?pageid=event_update_read&edis_id=EQ-20141014-45633-SLV&uid=15397

Edited October 14, 2014 by john pike

[john pike]

M6.1 - South of the Kermadec Islands 2014-10-14 04:12:30 UTC

 

tectonic Summary

Seismotectonics of the Eastern Margin of the Australia Plate

The eastern margin of the Australia plate is one of the most sesimically active areas of the world due to high rates of convergence between the Australia and Pacific plates. In the region of New Zealand, the 3000 km long Australia-Pacific plate boundary extends from south of Macquarie Island to the southern Kermadec Island chain. It includes an oceanic transform (the Macquarie Ridge), two oppositely verging subduction zones (Puysegur and Hikurangi), and a transpressive continental transform, the Alpine Fault through South Island, New Zealand.

 

http://earthquake.usgs.gov/earthquakes/eventpage/usb000slwz#summary

 

http://hisz.rsoe.hu/alertmap/site/index.php?pageid=seism_volcano&rid=438413

[john pike]

Earthquake in Iraq on Thursday, 16 October, 2014 at 03:03 (03:03 AM) UTC.

Description

A strong 5.6 earthquake rocked two cities in western Iran on Wednesday, injuring at least 16 people but causing only minor damage to homes, US and Iranian sources said. The quake occurred just after 5:00 pm (1330 GMT), with the epicentre 51 kilometres (32 miles) east of Dehloran in Ilam province, close to the border with Iraq, according to the US Geological Survey. It hit at the relatively shallow depth of 10 kilometres. The Iranian Red Crescent Society gave the injured toll, saying the cities of Dehloran and Abdanan, and a total population area of 65,000, were affected. "No deaths are reported," it said in an initial statement, classifying damage to houses and residential areas as minor. But the statement said that, due to cold weather, Abdanan's governor had issued an appeal for tents for families whose homes had been damaged.

 

http://hisz.rsoe.hu/alertmap/site/index.php?pageid=event_desc&edis_id=EQ-20141016-45656-IRQ

[john pike]

M 6.0 - COLOMBIA-ECUADOR BORDER REGION - 2014-10-20 19:33:23 UTC

10km deep

 

http://www.emsc-csem.org/Earthquake/earthquake.php?id=405042#map

 

seismotectonics of South America (Nazca Plate Region)

The South American arc extends over 7,000 km, from the Chilean margin triple junction offshore of southern Chile to its intersection with the Panama fracture zone, offshore of the southern coast of Panama in Central America. It marks the plate boundary between the subducting Nazca plate and the South America plate, where the oceanic crust and lithosphere of the Nazca plate begin their descent into the mantle beneath South America. The convergence associated with this subduction process is responsible for the uplift of the Andes Mountains, and for the active volcanic chain present along much of this deformation front. Relative to a fixed South America plate, the Nazca plate moves slightly north of eastwards at a rate varying from approximately 80 mm/yr in the south to approximately 65 mm/yr in the north. Although the rate of subduction varies little along the entire arc, there are complex changes in the geologic processes along the subduction zone that dramatically influence volcanic activity, crustal deformation, earthquake generation and occurrence all along the western edge of South America.

 

http://earthquake.usgs.gov/earthquakes/eventpage/usb000sp80#summary

 

 

http://hisz.rsoe.hu/alertmap/site/index.php?pageid=seism_volcano&rid=439698

list of volcanoes close to earthquake

Edited October 20, 2014 by john pike

[john pike]

http://www.earthquakes.bgs.ac.uk/earthquakes/recent_uk_events.html

 

latest uk quakes

[LadyEv06]

Felt locally around 7.15pm. Reported 3.3 or 2.6 

[Snowyowl9]

Nottinghamshire is shaken by an earthquake:

2.6 magnitude tremor described as 'big bang' is felt across the county.

Read more: http://www.dailymail.co.uk/news/article-2811971/Nottinghamshire-shaken-earthquake-2-6-magnitude-tremor-described-big-bang-felt-county.html#ixzz3HWJrsflO

[john pike]

M6.9 - 142km NE of Ndoi Island, Fiji tectonic Summary

Seismotectonics of the Eastern Margin of the Australia Plate

The eastern margin of the Australia plate is one of the most sesimically active areas of the world due to high rates of convergence between the Australia and Pacific plates. In the region of New Zealand, the 3000 km long Australia-Pacific plate boundary extends from south of Macquarie Island to the southern Kermadec Island chain. It includes an oceanic transform (the Macquarie Ridge), two oppositely verging subduction zones (Puysegur and Hikurangi), and a transpressive continental transform, the Alpine Fault through South Island, New Zealand.

 

http://earthquake.usgs.gov/earthquakes/eventpage/usc000stdc#summary

 

no damage and tsunami advisory dropped

 

http://earthquake.usgs.gov/earthquakes/eventpage/usc000stdc#summary%C2'> now reviewed to 7.1

Edited November 1, 2014 by john pike

[john pike]

6.6 - 72km NNE of Finschhafen, Papua New Guinea 2014-11-07 03:33:54 UTC

PAGER - GREEN ShakeMap - VII DYFI? - III

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Google Earth KML

Summary

Location and Magnitude contributed by: USGS National Earthquake Information Center

6.044°S, 148.210°E
Depth: 43.2km

1.  
2.  

Location

6.044°S 148.210°E depth=43.2km (26.8mi)

Nearby Cities

1. 72km (45mi) NNE of Finschhafen, Papua New Guinea
2. 154km (96mi) ENE of Lae, Papua New Guinea
3. 214km (133mi) NE of Bulolo, Papua New Guinea
4. 218km (135mi) NE of Wau, Papua New Guinea
5. 392km (244mi) NNE of Port Moresby, Papua New Guinea

Related Links

• Additional earthquake information for Papua New Guinea
• View location in Google Maps

Tectonic Summary

Seismotectonics of the New Guinea Region and Vicinity

The Australia-Pacific plate boundary is over 4000 km long on the northern margin, from the Sunda (Java) trench in the west to the Solomon Islands in the east. The eastern section is over 2300 km long, extending west from northeast of the Australian continent and the Coral Sea until it intersects the east coast of Papua New Guinea. The boundary is dominated by the general northward subduction of the Australia plate.

Along the South Solomon trench, the Australia plate converges with the Pacific plate at a rate of approximately 95 mm/yr towards the east-northeast. Seismicity along the trench is dominantly related to subduction tectonics and large earthquakes are common: there have been 13 M7.5+ earthquakes recorded since 1900. On April 1, 2007, a mate.1 interplate megathrust earthquake occurred at the western end of the trench, generating a tsunami and killing at least 40 people. This was the third mate.1 megathrust event associated with this subduction zone in the past century; the other two occurred in 1939 and 1977.

 

http://earthquake.usgs.gov/earthquakes/eventpage/usc000sv94#summary

 

http://ntwc.arh.noaa.gov/?p=PAAQ/2014/11/07/nen7mq/1/WEAK53

 

http://hisz.rsoe.hu/alertmap/site/index.php?pageid=seism_volcano&rid=442645%C2'> (volcanoes close to quake)

Edited November 7, 2014 by john pike

[john pike]

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The 2008 Mogul earthquake swarm shook our area for months. Notable quakes ranged from a 3.6 to a 4.7. Right now a similar swarm is happening to our north and it is more severe than the Mogul swarm. In Mogul, significant quakes were spaced out over a period of weeks. Quakes of the same magnitude have happened in this swarm but they have happened over the period of a day instead of a week. Denio, Nevada is the closest town to the swarm. Denio is on the Nevada-Oregon border in Humboldt County. Since the swarm started 3 months ago, 550 quakes larger than a magnitude 2, 40 larger than a 3, and at least 5 larger than a magnitude 4 have struck. "We were kinda expecting a magnitude 5 to come out of this sooner or later because it was so similar to Mogul and the Hawthorne swarms and low and behold it just happened to be in the middle of the night," said Graham Kent with the Nevada Seismology Lab. The biggest quake so far, a magnitude 4.7, struck at 12:34 Thursday morning. That is the same size as the biggest Mogul quake, but it likely won't be the biggest quake in this swarm. Seismologist worry the coming quakes are growing bigger. "If whether we all just jump a couple rungs and get into the 6 level and communities around Lakeview, Denio and over by Surprise Valley in California start to be affected in terms of being able to cause damage," said Kent. We might feel some shaking but the swarm likely won't affect us in Reno. It's important to watch because it can teach us about future swarms. "What we can learn from this swarm up by Denio will also help us again have a better sense of what is the scope of possibilities," said Kent. Earthquake swarms are something that are unique to our area. Where California may experience a major earthquake followed by several aftershocks, Nevada often has foreshocks that build in intensity toward a larger magnitude earthquake.

 

http://hisz.rsoe.hu/alertmap/site/index.php?pageid=event_desc&edis_id=EQ-20141107-45909-USA

[john pike]

Updated: Sunday, 09 November, 2014 at 05:49 UTC Description

A swarm of hundreds of earthquakes in Nevada has intensified recently, prompting experts to warn people to be ready in case larger ones hit. Starting in July, some 750 earthquakes, mostly magnitude 2.0 to 3.0, have struck a corner of the Nevada desert near the Oregon border, according to several reports. Scientists believe groundwater is slowly percolating along the faults and building up pressure, making movement on the faults much easier, the Los Angeles Times reported. "If you are not ready for an earthquake, now is an awfully good time to get ready for an earthquake," Alison Ryan, a spokeswoman for Oregon's Department of Geology and Mineral Industries, told the paper. The vast majority of Nevada's current earthquakes have been undetectable to people walking around, CNN reported. However in recent days, the quakes have grown stronger, with three over magnitude 4.0 and a magnitude 4.6 on Tuesday. "We've been watching the magnitudes climb during the various bursts throughout the last four or five months," Graham Kent, director of the Nevada Seismological Laboratory, told KTVN-TV. "We were wondering if it was going to get to this level of intensity, and it shot up there. It's really cooking right now." Kent told the station seismologists are trying to raise awareness about the swarms to make sure buildings are resilient and people are as prepared for an earthquake as possible. In 1968, in nearby Adel, Ore., a swarm of earthquake lasting several months produced three quakes of about magnitude 5 but caused only moderate damage, CNN reported. Another, shorter swarm near Reno, Nev., in 2008 led to a magnitude 5 quake and caused moderate local damage, the network reported. The current affected area in Nevada is 50 miles southeast of Lakeview, Ore., Ian Madin, chief scientist for Oregon's Department of Geology and Mineral Industries, told The Los Angeles Times. "There is a slightly elevated risk of a larger earthquake while the swarm is active," Madin told CNN. John Vidale, director of the Pacific Northwest Seismic Network at the University of Washington, also weighed in. "It doesn't necessarily mean anything big is coming, but it does raise the risk there will be a bigger quake in the future," Vidale told the Los Angeles Times. "Ninety-nine percent of the time nothing too dramatic happens, but every now and then there is a good pop and everyone asks why we didn't predict it."

 

http://hisz.rsoe.hu/alertmap/site/index.php?pageid=event_update_read&edis_id=EQ-20141107-45909-USA&uid=15459