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Archive for the ‘Earthquake cluster’ Category

More Quakes Plague Oklahoma

Posted by feww on June 18, 2014

SEISMIC HAZARD
HEIGHTENED GLOBAL SEISMICITY
SCENARIOS 08, 07
.

M4.1 Strikes NE of Oklahoma City

Centered at 35.610°N, 97.371°W, the quake struck at a signature depth of  about 5.0km (3.1mi), some 20km (12mi) NE of Oklahoma City.

[Some 210 earthquakes measuring 3.0Mw or greater have struck Oklahoma so far this year, compared with 98  similar events during the entire 2013, and a total of 23 quakes between 1978 and 2000.]

EQ Details

Magnitude: 4.1Mw
Event Time: 2014-06-18 10:53:02 UTC
Location: 35.610°N 97.371°W depth=5.0km (3.1mi)
Nearby Cities:

  • 9km (6mi) N of Spencer, Oklahoma
  • 10km (6mi) ESE of Edmond, Oklahoma
  • 15km (9mi) NW of Choctaw, Oklahoma
  • 17km (11mi) N of Midwest City, Oklahoma
  • 20km (12mi) NE of Oklahoma City, Oklahoma

OK Seismicity in the Last 48 hours

3.7 7km ENE of Langston, Oklahoma 2014-06-18 23:08:33 UTC+09:00 6.0 km
4.1 9km N of Spencer, Oklahoma 2014-06-18 10:53:02 UTC 5.0 km
2.7 7km SE of Edmond, Oklahoma 2014-06-18 10:30:18 UTC 5.0 km
3.0 9km ESE of Langston, Oklahoma 2014-06-18 07:08:02 UTC 5.0 km
3.0 7km N of Spencer, Oklahoma 2014-06-17 16:29:12 UTC 5.1 km
2.6 13km SSE of Medford, Oklahoma 2014-06-17 14:36:36 UTC 5.0 km
2.7 8km SE of Edmond, Oklahoma 2014-06-17 04:57:40 UTC 5.5 km
2.7 8km NNW of Spencer, Oklahoma 2014-06-17 04:11:45 UTC 5.4 km
2.7 1km E of Jones, Oklahoma 2014-06-16 19:00:47 UTC 5.1 km
2.8 8km SE of Edmond, Oklahoma 2014-06-16 16:40:13 UTC 4.8 km
2.5 4km ESE of Harrah, Oklahoma 2014-06-16 16:01:10 UTC 4.5 km
2.8 8km SE of Edmond, Oklahoma 2014-06-16 12:39:31 UTC 5.0 km
3.0 9km NW of Jones, Oklahoma 2014-06-16 11:25:13 UTC 6.7 km
4.3 4km WNW of Jones, Oklahoma 2014-06-16 10:47:35 UTC 5.0 km
3.5 8km NNW of Spencer, Oklahoma 2014-06-16 10:31:07 UTC 5.9 km

Related Links

Posted in Earthquake cluster, Earthquake Hazard, earthquake report, Global Disaster watch, global disasters, significant events | Tagged: , , , | Leave a Comment »

Alaska Rattled by Earthquake Cluster

Posted by feww on June 8, 2014

SEISMIC HAZARD
HEIGHTENED GLOBAL SEISMICITY
SCENARIOS 08, 07
.

M5.5 strikes near Noatak, AK followed by dozens of aftershocks

Centered at 67.719°N, 162.385°W, the event occurred at a depth of 16.4km (10.2mi), followed by at least two dozen aftershocks.

EQ Details [USGS/EHP]

Magnitude: 5.5Mw
Event Time: 2014-06-07 at 04:43:33 UTC
Location: 67.719°N 162.385°W depth=16.4km (10.2mi)
Nearby Cities:

  • 35km (22mi) NE of Noatak, Alaska
  • 728km (452mi) WNW of Fairbanks, Alaska

EQ Location Map

Noatak-Alska 7-8-14
1 Day, All Magnitudes Worldwide: 171 earthquakes – DownloadUpdated: 2014-06-08 2014-06-08 04:47:29 UTC– 56 earthquakes in the larger Alaska map area. Source: USGS/EHP


IMPORTANT NOTICE: FIRE-EARTH EQ Forecast

The next detailed FIRE-EARTH Earthquake Forecast will be released together with Bulletin NO. 104 later today (June 8, 2014).


 Volcanic Activity in Alaska

PAVLOF VOLCANO (VNUM #312030)
55°25’2″ N 161°53’37” W, Summit Elevation 8261 ft (2518 m)
Current Volcano Alert Level: WATCH
Current Aviation Color Code: ORANGE

The eruption of Pavlof Volcano continues. Seismicity remains steady and unchanged in the past 24 hours. No thermal or ash signals were visible in cloudy satellite and web camera images.

  • Shishaldin: Color Code: ORANGE/ Alert Level WATCH
  • Cleveland: Color Code YELLOW / Alert Level ADVISORY
  • Veniaminof: Color Code YELLOW / Alert Level ADVISORY

Related Links

Posted in earthquake, Earthquake cluster, Earthquake Hazard, Earthquake news, earthquake update, Global Disaster watch, significant events | Tagged: , , , , , , , , , | Leave a Comment »

Seismic Cluster Strikes Offshore Oregon

Posted by feww on May 8, 2010

Larger Shocks May Occur

Cluster of at least 9 shocks strike offshore Oregon

Earthquake measuring about 5.4Mw struck the offshore Oregon about 500km west of Eugene on Friday, May 07, 2010 at 17:46:15UTC.

Epicenter of the earthquake was located near 44.396°N, 129.437°W and occurred at a depth of  10 km (6.2 miles). The initial shock was followed by at least 8 other events [aftershocks] measuring a mean magnitude of about 4.4Mw.

Center of the cluster was about 1,000km (600 miles) south of  a magnitude 8.1 shock that occurred on the Queen Charlotte Fault off Queen Charlotte Island on August 22, 1949. That event was Canada’s largest earthquake since 1700.

10-degree Map Centered at 45°N,130°W


Earthquake Location Map. Source: USGS/EHP. Map enhanced by Fire-Earth.

Earthquake Details

  • Magnitude [USGS Estimate]: 5.1 [Fire Earth Estimate: 5.4, or greater]
  • Date-Time:
    • Friday, May 07, 2010 at 17:46:15 UTC
    • Friday, May 07, 2010 at 08:46:15 AM at epicenter
  • Location: 44.396°N, 129.437°W
  • Depth: 10 km (6.2 miles)
  • Region: OFF THE COAST OF OREGON
  • Distances:
    • 424 km (263 miles) W (273°) from Yachats, OR
    • 427 km (265 miles) W (271°) from Waldport, OR
    • 427 km (265 miles) WNW (288°) from Barview, OR
    • 505 km (314 miles) W (276°) from Eugene, OR
    • 549 km (341 miles) W (259°) from Portland, OR
  • Location Uncertainty: horizontal +/- 6 km (3.7 miles)
  • Source: USGS NEIC (WDCS-D)
  • Event ID: us2010vzbx


Cascadia Subduction Zone


Cascadia Subduction Zone. Source: USGS

Related Links:

[* Reference Only. Research suspended see: Calif Earthquake Forecast – Update 4]

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Posted in earhquake forecast, earthquake, earthquake 2010, Earthquake cluster, environment | Tagged: , , , | Leave a Comment »

Large Earthquake Strikes Off the Coast of Japan

Posted by feww on December 21, 2008

Magnitude 6.5 Earthquake Strikes Off the Coast of Honshu, Japan

The Mainshock was followed by a cluster of at least 5 moderate to strong aftershocks magnitude 4.8  to 5.3.

Update: A magnitude 6.0 aftershock struck near location of mainshock [36.592°N, 142.269°E,] on December 21, 2008 at 09:16:44 UTC.

10-degree Map Centered at 35°N,140°E

japan-21-dec-08
Source: USGS

Earthquake Details

Magnitude: 6.5

Date-Time: Saturday, December 20, 2008 at 10:29:22 UTC

Location: 36.603°N, 142.356°E
Depth: 10 km (6.2 miles) set by location program
Region: OFF THE EAST COAST OF HONSHU, JAPAN
Distances:

  • 140 km (85 miles) ESE of Iwaki, Honshu, Japan
  • 170 km (105 miles) E of Mito, Honshu, Japan
  • 210 km (130 miles) SE of Fukushima, Honshu, Japan
  • 255 km (160 miles) ENE of TOKYO, Japan

Location Uncertainty: horizontal +/- 8.7 km (5.4 miles); depth fixed by location program

Sourc: USGS NEIC (WDCS-D)

Event ID: us2008avan

Seismicity in 2008

japan-21-dec-08-n2

Related Links:

Posted in Earthquake cluster, earthquake damage, Japan shake, Mito, tectonic plates | Tagged: , , , , | Leave a Comment »

New Zealand Hit by another Quake

Posted by feww on December 19, 2008

A Magnitude 5.2 Quake shakes NORTH ISLAND, NZ

New micro plates forming at the top of the North Island, NZ?

Magnitude: 5.2
Date-Time:  Friday, December 19, 2008 at 00:20:58 UTC
Location: 37.927°S, 174.781°E
Depth: 35 km (21.7 miles) set by location program
Region: NORTH ISLAND OF NEW ZEALAND
Distances:

  • 118 km (73 miles) S (179°) from Auckland, New Zealand
  • 133 km (83 miles) W (279°) from Rotorua, New Zealand
  • 141 km (87 miles) NNE (26°) from New Plymouth, New Zealand
  • 373 km (232 miles) N (360°) from WELLINGTON, New Zealand

Location Uncertainty:  horizontal +/- 8 km (5.0 miles); depth fixed by location program
Source: USGS NEIC (WDCS-D)
Event ID us2008atcf

location-map-nz-19-dec-2008

According to NZ GeoNet, at least 8 quakes magnitude 4 or larger have struck New Zealand islands in the past week. Their data may be inaccurate, and is unverified.

Related Links:

Posted in Auckland shake, Earthquake cluster, GeoNet, New Plymouth, WELLINGTON rattle | Tagged: , , , , | 1 Comment »