Earthquake Activity Thread

[john pike]

M 6.1 - OFFSHORE TARAPACA, CHILE - 2014-04-11 00:01:43 UTC

http://www.emsc-csem.org/Earthquake/earthquake.php?id=371213

 

lets hope this dont start again here

[Styx]

M 7.1 PANGUNA, PAPUA NEW GUINEA...4 hours ago

http://earthquaketrack.com/quakes/2014-04-11-07-07-21-utc-7-1-50

 

A big one..surprised no minor tremors reached the north Queensland.

Obviously too deep..and no tsunami warnings.

[john pike]

A strong earthquake damaged dozens of houses in western Nicaragua on Thursday, and authorities said that at least 23 people were injured by falling ceilings, beams and walls in one town. The 6.1-magnitude quake caused panicked Nicaraguans to run into the streets and callers to local radio stations complained that electricity and water services had been disrupted in their areas. Apparently hardest hit was the town of Nagarote, along with the communities around it, where more than 100 houses were damaged, said Guillermo Gonzalez, director of the disaster prevention agency. Nagarote is located 31 miles (50 kilometers) northwest of the capital, Managua. Gonzalez said that at least 23 people were injured by falling walls, ceilings and other objects. Three of the injured were taken to a Managua hospital. Health official Enrique Beteta said the three have non-life threatening injuries. "One has trauma in an ankle, the other in a leg and a 16-year-old boy in his lower back after a portion of a wall fell on him," Beteta told popular radio station Radio Ya. Gonzalez said that two houses were damaged in Managua and landslides had blocked two highways south of the capital. Authorities suspended classes on Friday in the cities of Leon and Managua. The U.S. Geological Survey said the quake struck at 5:27 p.m. local time (23:27 GMT), and was centered about 11 miles (18 kilometers) southeast of the city of Larreynaga. It had a depth of 6.2 miles (10 kilometers).

 

http://hisz.rsoe.hu/alertmap/site/?pageid=event_desc&edis_id=EQ-20140411-43322-NIC

[john pike]

M6.6 - 18km SSW of Nandaime, Nicaragua 2014-04-11 20:29:11 UTC

thankfully deep

 

150km

 

 

extensive diversity and complexity of tectonic regimes characterizes the perimeter of the Caribbean plate, involving no fewer than four major plates (North America, South America, Nazca, and Cocos). Inclined zones of deep earthquakes (Wadati-Benioff zones), ocean trenches, and arcs of volcanoes clearly indicate subduction of oceanic lithosphere along the Central American and Atlantic Ocean margins of the Caribbean plate, while crustal seismicity in Guatemala, northern Venezuela, and the Cayman Ridge and Cayman Trench indicate transform fault and pull-apart basin tectonics. Along the northern margin of the Caribbean plate, the North America plate moves westwards with respect to the Caribbean plate at a velocity of approximately 20 mm/yr. Motion is accommodated along several major transform faults that extend eastward from Isla de Roatan to Haiti, including the Swan Island Fault and the Oriente Fault. These faults represent the southern and northern boundaries of the Cayman Trench. Further east, from the Dominican Republic to the Island of Barbuda, relative motion between the North America plate and the Caribbean plate becomes increasingly complex and is partially accommodated by nearly arc-parallel subduction of the North America plate beneath the Caribbean plate. This results in the formation of the deep Puerto Rico Trench and a zone of intermediate focus earthquakes (70-300 km depth) within the subducted slab. Although the Puerto Rico subduction zone is thought to be capable of generating a megathrust earthquake, there have been no such events in the past century. The last probable interplate (thrust fault) event here occurred on May 2, 1787 and was widely felt throughout the island with documented destruction across the entire northern coast, including Arecibo and San Juan. Since 1900, the two largest earthquakes to occur in this region were the August 4, 1946 mate.0 Samana earthquake in northeastern Hispaniola and the July 29, 1943 M7.6 Mona Passage earthquake, both of which were shallow thrust fault earthquakes. A significant portion of the motion between the North America plate and the Caribbean plate in this region is accommodated by a series of left-lateral strike-slip faults that bisect the island of Hispaniola, notably the Septentrional Fault in the north and the Enriquillo-Plantain Garden Fault in the south. Activity adjacent to the Enriquillo-Plantain Garden Fault system is best documented by the devastating January 12, 2010 M7.0 Haiti strike-slip earthquake, its associated aftershocks and a comparable earthquake in 1770

 

http://earthquake.usgs.gov/earthquakes/eventpage/at00n3vvkq#summary

 

http://hisz.rsoe.hu/alertmap/site/index.php?pageid=seism_volcano&rid=398781

 

volcanoes nearby

Edited April 11, 2014 by john pike

[john pike]

http://earthquake.usgs.gov/monitoring/operations/heliplots_gsn.php

 

gsn heliports above

 

pretty lively

[john pike]

posted April 11, 3:30 pm) — Nicaragua continues to shake violently, registering another sizable earthquake with a magnitude of 6.6, according to the U.S. Geographical Survey.

The 6.6-magnitude quake — the second registering over 6.0 in the past 24 hours —  occurred at 2:29 pm, 11 KM south east of Nandaime.

The Nicaraguan government, which has already placed the country on red alert following last night’s 6.2-magnitude quake, is not reporting any new injuries or damages following the second major quake.

http://nicaraguadispatch.com/2014/04/nicaragua-rocked-by-second-quake-6-6-magnitude/

[john pike]

M6.1 - 92km SSW of Panguna, Papua New Guinea

 

http://earthquake.usgs.gov/earthquakes/eventpage/usc000phaj#summary

 

http://hisz.rsoe.hu/alertmap/site/index.php?pageid=seism_volcano&rid=398878

[john pike]

mag 8.3 - 102km SSE of Kirakira, Solomon Islands

10km deep

 

tsunami advisory out

 

 

updates to follow

 

http://ptwc.weather.gov/ptwc/text.php?id=hawaii.TIBHWX.2014.04.12.2021

 

http://ptwc.weather.gov/ptwc/text.php?id=pacific.TSUPAC.2014.04.12.2035

 

amended to 7.8 although another 6.1 has just happened

http://www.emsc-csem.org/Earthquake/

Edited April 12, 2014 by john pike

[john pike]

http://ptwc.weather.gov/ptwc/text.php?id=hawaii.TIBHWX.2014.04.12.2039

 

hawaii tsunami watch dropped

 

awaiting the others still

[john pike]

http://ptwc.weather.gov/ptwc/text.php?id=pacific.TSUPAC.2014.04.12.2136

 

tsunami watch-warning cancelled

 

good

[john pike]

Just as residents of Managua were clearing up the damage from an earthquake on Thursday, a second earthquake struck Nicaragua on Friday.

The government raised the number of those injured in Thursday’s quake from 23 to 200 and one person was reported to have died.

http://www.euronews.com/2014/04/12/nicaragua-shaken-by-second-earthquake/

 

video in link above

[john pike]

 

Data from station HNR (Honiara, Solomon Islands)   last updated at  

Sat 04/12/14 15:08 MDT (Sat 04/12/14 21:08 UTC)

 

http://earthquake.usgs.gov/monitoring/operations/data/Seismic_Data/telemetry_data/HNR_24hr.html

Edited April 12, 2014 by john pike

[john pike]

M 5.3 - SOUTHERN IDAHO - 2014-04-13 00:04:42 UTC

10km deep

 

 

http://www.emsc-csem.org/Earthquake/earthquake.php?id=371754#summary

 

posted as not many quakes normally seen in this area

 

damage reports to follow if any

 

 

 

http://www.isthisthingon.org/Yellowstone/daythumbs.php

 

note the jolt at yellowstone there

Edited April 13, 2014 by john pike

[john pike]

M7.7 - 117km S of Kirakira, Solomon Islands

20km deep

 

http://earthquake.usgs.gov/earthquakes/eventpage/at00n3yz0j#summary

 

http://ptwc.weather.gov/ptwc/text.php?id=pacific.TSUPAC.2014.04.13.1246

 

tsunami watch raised at present

[john pike]

http://www.emsc-csem.org/Earthquake/

 

and a 6.4 10 minutes after

[john pike]

main quake amended to 7.5 and slightly deeper at 35km

 

http://ptwc.weather.gov/

 

hawaii warning dropped

 

others are still on but i would expect them to be dropped shortly

 

follow the link above for updates

[john pike]

http://ptwc.weather.gov/ptwc/text.php?id=pacific.TSUPAC.2014.04.13.1355

... A TSUNAMI WARNING IS IN EFFECT ...THE AREA OF WARNING IS REDUCED IN THIS MESSAGE.A TSUNAMI WARNING IS IN EFFECT FOR SOLOMON ISLANDSTHE TSUNAMI WARNING ISSUED EARLIER FOR VANUATU AND PAPUA NEWGUINEA IS CANCELLED.FOR ALL OTHER AREAS COVERED BY THIS BULLETIN... IT IS FORINFORMATION ONLY AT THIS TIME.THIS BULLETIN IS ISSUED AS ADVICE TO GOVERNMENT AGENCIES.  ONLYNATIONAL AND LOCAL GOVERNMENT AGENCIES HAVE THE AUTHORITY TO MAKEDECISIONS REGARDING THE OFFICIAL STATE OF ALERT IN THEIR AREA ANDANY ACTIONS TO BE TAKEN IN RESPONSE.AN EARTHQUAKE HAS OCCURRED WITH THESE PRELIMINARY PARAMETERS ORIGIN TIME -  1236Z 13 APR 2014 COORDINATES -  11.5 SOUTH  162.1 EAST DEPTH       -   20 KM LOCATION    -  SOLOMON ISLANDS MAGNITUDE   -  7.4MEASUREMENTS OR REPORTS OF TSUNAMI WAVE ACTIVITY GAUGE LOCATION        LAT   LON    TIME        AMPL         PER -------------------  ----- ------  -----  ---------------  ----- LATA WHARF SB        10.7S 165.8E  1324Z   0.03M /  0.1FT  16MIN LAT  - LATITUDE (N-NORTH, S-SOUTH) LON  - LONGITUDE (E-EAST, W-WEST) TIME - TIME OF THE MEASUREMENT (Z IS UTC IS GREENWICH TIME) AMPL - TSUNAMI AMPLITUDE MEASURED RELATIVE TO NORMAL SEA LEVEL.        IT IS ...NOT... CREST-TO-TROUGH WAVE HEIGHT.        VALUES ARE GIVEN IN BOTH METERS(M) AND FEET(FT). PER  - PERIOD OF TIME IN MINUTES(MIN) FROM ONE WAVE TO THE NEXT.EVALUATION SEA LEVEL READINGS CONFIRM THAT A TSUNAMI WAS GENERATED. THIS TSUNAMI MAY HAVE BEEN DESTRUCTIVE ALONG COASTLINES OF THE REGION NEAR THE EARTHQUAKE EPICENTER. AUTHORITIES IN THE REGION SHOULD TAKE APPROPRIATE ACTION IN RESPONSE TO THIS POSSIBILITY. THIS CENTER WILL CONTINUE TO MONITOR SEA LEVEL GAUGES NEAREST THE REGION AND REPORT IF ANY ADDITIONAL TSUNAMI WAVE ACTIVITY. THE WARNING WILL NOT EXPAND TO OTHER AREAS OF THE PACIFIC UNLESS ADDITIONAL DATA ARE RECEIVED TO WARRANT SUCH AN EXPANSION. FOR AFFECTED AREAS - WHEN NO MAJOR WAVES ARE OBSERVED FOR TWO HOURS AFTER THE ESTIMATED TIME OF ARRIVAL OR DAMAGING WAVES HAVE NOT OCCURRED FOR AT LEAST TWO HOURS THEN LOCAL AUTHORITIES CAN ASSUME THE THREAT IS PASSED. DANGER TO BOATS AND COASTAL STRUCTURES CAN CONTINUE FOR SEVERAL HOURS DUE TO RAPID CURRENTS. AS LOCAL CONDITIONS CAN CAUSE A WIDE VARIATION IN TSUNAMI WAVE ACTION THE ALL CLEAR DETERMINATION MUST BE MADE BY LOCAL AUTHORITIES.ESTIMATED INITIAL TSUNAMI WAVE ARRIVAL TIMES AT FORECAST POINTSWITHIN THE WARNING AND WATCH AREAS ARE GIVEN BELOW. ACTUALARRIVAL TIMES MAY DIFFER AND THE INITIAL WAVE MAY NOT BE THELARGEST. A TSUNAMI IS A SERIES OF WAVES AND THE TIME BETWEENSUCCESSIVE WAVES CAN BE FIVE MINUTES TO ONE HOUR. LOCATION         FORECAST POINT     COORDINATES     ARRIVAL TIME --------------------------------    ------------    ------------ SOLOMON ISLANDS  KIRAKIRA           10.4S 161.9E    1258Z 13 APR                  SANTA_CRUZ_ISLA    10.9S 165.9E    1314Z 13 APR                  AUKI                8.8S 160.6E    1318Z 13 APR                  HONIARA             9.3S 160.0E    1324Z 13 APR                  MUNDA               8.4S 157.2E    1336Z 13 APR                  GHATERE             7.8S 159.2E    1341Z 13 APR                  FALAMAE             7.4S 155.6E    1355Z 13 APR                  PANGGOE             6.9S 157.2E    1359Z 13 APRBULLETINS WILL BE ISSUED HOURLY OR SOONER IF CONDITIONS WARRANT.THE TSUNAMI WARNING WILL REMAIN IN EFFECT UNTIL FURTHER NOTICE.

[john pike]

... TSUNAMI WARNING CANCELLATION ...THE TSUNAMI WARNING AND/OR WATCH ISSUED BY THE PACIFIC TSUNAMIWARNING CENTER IS NOW CANCELLED FOR SOLOMON ISLANDSTHIS BULLETIN IS ISSUED AS ADVICE TO GOVERNMENT AGENCIES.  ONLYNATIONAL AND LOCAL GOVERNMENT AGENCIES HAVE THE AUTHORITY TO MAKEDECISIONS REGARDING THE OFFICIAL STATE OF ALERT IN THEIR AREA ANDANY ACTIONS TO BE TAKEN IN RESPONSE.AN EARTHQUAKE HAS OCCURRED WITH THESE PRELIMINARY PARAMETERS ORIGIN TIME -  1236Z 13 APR 2014 COORDINATES -  11.5 SOUTH  162.1 EAST DEPTH       -   20 KM LOCATION    -  SOLOMON ISLANDS MAGNITUDE   -  7.4MEASUREMENTS OR REPORTS OF TSUNAMI WAVE ACTIVITY GAUGE LOCATION        LAT   LON    TIME        AMPL         PER -------------------  ----- ------  -----  ---------------  ----- LIFOU NEW CALEDONIA  20.9S 167.3E  1430Z   0.16M /  0.5FT  06MIN HONIARA SB            9.4S 160.0E  1420Z   0.02M /  0.1FT  06MIN DART 55012           15.8S 158.5E  1343Z   0.01M /  0.0FT  06MIN LATA WHARF SB        10.7S 165.8E  1324Z   0.03M /  0.1FT  16MIN LAT  - LATITUDE (N-NORTH, S-SOUTH) LON  - LONGITUDE (E-EAST, W-WEST) TIME - TIME OF THE MEASUREMENT (Z IS UTC IS GREENWICH TIME) AMPL - TSUNAMI AMPLITUDE MEASURED RELATIVE TO NORMAL SEA LEVEL.        IT IS ...NOT... CREST-TO-TROUGH WAVE HEIGHT.        VALUES ARE GIVEN IN BOTH METERS(M) AND FEET(FT). PER  - PERIOD OF TIME IN MINUTES(MIN) FROM ONE WAVE TO THE NEXT. NOTE - DART MEASUREMENTS ARE FROM THE DEEP OCEAN AND THEY        ARE GENERALLY MUCH SMALLER THAN WOULD BE COASTAL         MEASUREMENTS AT SIMILAR LOCATIONS.

http://ptwc.weather.gov/ptwc/text.php?id=pacific.TSUPAC.2014.04.13.1442

[john pike]

5.1-magnitude earthquake shook Nicaragua on Sunday night, the third quake to hit the Central American nation within a week.

Seven homes collapsed but there have so far been no reports of any casualties.

Officials said the quakes could be an indication that the geological fault line which runs underneath the capital, Managua, has been re-activated.

Movement in the Estadia fault caused the 1972 quake which killed at least 5,000 people and devastated Managua.

 

http://www.bbc.co.uk/news/world-latin-america-27020200

[john pike]

15-APR-2014 03:57:02 -53.53 8.70 6.9 12 BOUVET ISLAND REGION 4598758

http://earthquake.usgs.gov/earthquakes/eventpage/usb000pkxl#summary

[NorthNorfolkWeather]

5.1-magnitude earthquake shook Nicaragua on Sunday night, the third quake to hit the Central American nation within a week.

Seven homes collapsed but there have so far been no reports of any casualties.

Officials said the quakes could be an indication that the geological fault line which runs underneath the capital, Managua, has been re-activated.

Movement in the Estadia fault caused the 1972 quake which killed at least 5,000 people and devastated Managua.

 

http://www.bbc.co.uk/news/world-latin-america-27020200

Hi John,

 

any signs of extra stress on the American (North and South) West coast faults?  The Chilean quake of a couple of weeks ago must have redistributed a lot of strain along the faults

[john pike]

the authorities in Nicaragua have put the entire country on an "extreme red alert", the highest possible, after the country was hit by a series of tremors.

Nicaraguans were asked to sleep outdoors as seismologists warned of the possibility of a powerful earthquake rocking the Central American country.

 

http://www.bbc.co.uk/news/world-latin-america-27033199

 

hi norfolk

 

nothing showing yet

 

but i agree the stress there at present must be high

 

that nicaragua story is quite rare to put the country on high alert

 

time will tell on that though

[Beverley Lass]

Rutland, around 7am today a 3.1 earthquake being reported.

Must phone home to see if my family members felt it !

 

B. 

[john pike]

http://earthquakes.bgs.ac.uk/earthquakes/recent_events/20140417060453.html#page=summary

[john pike]

M6.2 - Balleny Islands region 2014-04-17 15:06:51 UTC

17km deep

 

 

http://earthquake.usgs.gov/earthquakes/eventpage/usb000pnw2#summary

 

at sea and no tsunami watch raised

 

damage unlikely