M7.0 Quake Strikes Southern Mid-Atlantic Ridge

UPDATE:

This quake has been upgraded to 6.8Mw event by the European-Mediterranean Seismological Centre

Magnitude Mw 6.8
Date time 2015-06-17 12:51:31.8 UTC
Location 35.26 S ; 17.79 W
Depth 10 km

And to a 6.9Mw event by GEOFON Global Seismic Monitor

F-E Region: Southern Mid Atlantic Ridge
Magnitude: 6.9 (Mw)
Epicenter: 17.73°W 35.38°S
Depth: 10 km
Status: M – manually revised

Powerful quake occurs north of Tristan

Centered at 35.362°S, 17.392°W the quake occurred north of Tristan da Cunha Fracture Zone, about 494km (308mi) WNW of Edinburgh of the Seven Seas, Saint Helena, at a depth of about 10.0 km (6.2 mi), reported USGS/EHP.

EQ Details

Magnitude: 7.0Mw [Upgraded from 6.1Mw]
Location: 35.362°S, 17.392°W
Date/ Time of Occurrence: 2015-06-17 at 12:51:33 (UTC)
Depth: 10km

Tsunami Evaluation
A DESTRUCTIVE WIDESPREAD TSUNAMI THREAT DOES NOT EXIST BASED ON HISTORICAL EARTHQUAKE AND TSUNAMI DATA. [NWS PACIFIC TSUNAMI WARNING CENTER]

Related Links

• FIRE-EARTH ALERT: HEIGHTENED SEISMICITY and ENHANCED VOLCANISM in the Pacific Ring of Fire March 31, 2015

• FIRE-EARTH Forecast: Heightened seismicity in the Pacific Ring of Fire March 30, 2015

Global Earthquakes Tempi Rising

Intense Volcanic Activity to Follow!

Significant Earthquakes Since July 19, 2010

NOTE: The actual magnitude of the following earthquakes sourced from USGS/EHP could be up to  0.6Mw larger than the reported size.

Magnitude 5.8 – FOX ISLANDS, ALEUTIAN ISLANDS, ALASKA

• Magnitude: 5.8
• Date-Tim:
  • Monday, July 19, 2010 at 08:20:31 UTC
  • Monday, July 19, 2010 at 12:20:31 AM at epicente
• Location: 52.769°N, 169.221°W
• Depth: 10 km (6.2 miles) set by location program
• Region: FOX ISLANDS, ALEUTIAN ISLANDS, ALASKA
• Distances:
  • 30 km (20 miles) SW of Nikolski, Alaska
  • 100 km (60 miles) E of Yunaska Island, Alaska
  • 1,500 km (930 miles) WSW of Anchorage, Alaska
  • 2,250 km (1400 miles) W of JUNEAU, Alaska
• Location Uncertainty: horizontal +/- 6.2 km (3.9 miles); depth fixed by location program
• Source: USGS NEIC (WDCS-D)
• Event ID: us2010yxax

Magnitude 5.5 – FOX ISLANDS, ALEUTIAN ISLANDS, ALASKA

• Magnitude: 5.5
• Date-Time:
  • Monday, July 19, 2010 at 08:23:14 UTC
  • Monday, July 19, 2010 at 12:23:14 AM at epicenter
• Location: 52.752°N, 169.580°W
• Depth: 10 km (6.2 miles) set by location program
• Region: FOX ISLANDS, ALEUTIAN ISLANDS, ALASKA
• Distances:
  • 50 km (30 miles) WSW of Nikolski, Alaska
  • 75 km (45 miles) E of Yunaska Island, Alaska
  • 1,515 km (940 miles) WSW of Anchorage, Alaska
  • 2,280 km (1420 miles) W of JUNEAU, Alaska
• Location Uncertainty: horizontal +/- 8.7 km (5.4 miles); depth fixed by location program
• Source: USGS NEIC (WDCS-D)
• Event ID: us2010yxay

Magnitude 5.5 – SOUTHERN MID-ATLANTIC RIDGE

• Magnitude 5.5
• Date-Time
  • Tuesday, July 20, 2010 at 17:19:52 UTC
  • Tuesday, July 20, 2010 at 04:19:52 PM at epicenter
• Location: 29.131°S, 13.173°W
• Depth: 19.4 km (12.1 miles)
• Region: SOUTHERN MID-ATLANTIC RIDGE
• Distances:
  • 2,906 km (1806 miles) ESE (115°) from Vitoria, Brazil
  • 3,107 km (1930 miles) WSW (250°) from WINDHOEK, Namibia
• Location Uncertainty: horizontal +/- 15.9 km (9.9 miles); depth +/- 4.8 km (3.0 miles)
• Source: USGS NEIC (WDCS-D)
• Event ID: us2010yybt

Magnitude 6.3 – NEW BRITAIN REGION, PAPUA NEW GUINEA

The two largest quakes with magnitudes of 7.3 and 6.9 that struck PNG on July 18–19, 2010 [USGS estimates] are marked on the above image. Above color-coded map shows the topography, bathymetry, fault lines and earthquake locations. Source: NASA E/O. Click image to enlarge.

• Magnitude: 6.3
• Date-Time:
  • Tuesday, July 20, 2010 at 19:18:23 UTC
  • Wednesday, July 21, 2010 at 05:18:23 AM at epicenter
• Location: 5.917°S, 150.681°E
• Depth: 35.9 km (22.3 miles)
• Region: NEW BRITAIN REGION, PAPUA NEW GUINEA
• Distances:
  • 70 km (45 miles) SE of Kimbe, New Britain, PNG
  • 130 km (80 miles) ENE of Kandrian, New Britain, PNG
  • 550 km (340 miles) NE of PORT MORESBY, Papua New Guinea
  • 2,400 km (1490 miles) N of BRISBANE, Queensland, Australia
• Location Uncertainty: horizontal +/- 7.7 km (4.8 miles); depth +/- 18.8 km (11.7 miles)
• Source:  USGS NEIC (WDCS-D)
• Event ID: us2010yybw

Magnitude 5.8 – SOUTHERN IRAN

• Magnitude: 5.8
• Date-Tim:
  • Tuesday, July 20, 2010 at 19:38:09 UTC
  • Tuesday, July 20, 2010 at 11:08:09 PM at epicenter
• Location: 27.029°N, 53.866°E
• Depth: 10 km (6.2 miles) set by location program
• Region: SOUTHERN IRAN
• Distances:
  • 85 km (55 miles) SSW of Lar, Iran
  • 115 km (70 miles) WNW of Bandar-e Lengeh, Iran
  • 165 km (105 miles) S of Jahrom, Iran
  • 990 km (610 miles) SSE of TEHRAN, Iran
• Location Uncertainty: horizontal +/- 5.4 km (3.4 miles)
• Source: USGS NEIC (WDCS-D)
• Event ID: us2010yybz

Magnitude 5.6 – NEW BRITAIN REGION, PAPUA NEW GUINEA

• Magnitude: 5.6
• Date-Time:
  • Tuesday, July 20, 2010 at 20:31:09 UTC
  • Wednesday, July 21, 2010 at 06:31:09 AM at epicenter
• Location: 6.043°S, 150.660°E
• Depth 40 km (24.9 miles)
• Region: NEW BRITAIN REGION, PAPUA NEW GUINEA
• Distances:
  • 80 km (50 miles) SE of Kimbe, New Britain, PNG
  • 125 km (75 miles) E of Kandrian, New Britain, PNG
  • 535 km (335 miles) NE of PORT MORESBY, Papua New Guinea
  • 2,385 km (1480 miles) N of BRISBANE, Queensland, Australia
• Location Uncertainty: horizontal +/- 6 km (3.7 miles); depth +/- 14 km (8.7 miles)
• Source:  USGS NEIC (WDCS-D)
• Event ID: us2010yyca

NEAR S. COAST OF WESTERN HONSHU, JAPAN

• Magnitude: 5.1
• Time: 06:19 JST  on 21 Jul 2010
• Location: 34.2N 135.7E
• Depth: 60km
• Region Name: Nara-ken
• Distances:
  • 50 km (30 miles) SSE of Osaka, Honshu, Japan
  • 55 km (35 miles) E of Wakayama, Honshu, Japan
  • 75 km (50 miles) S of Kyoto, Honshu, Japan
  • 395 km (245 miles) WSW of TOKYO, Japan

• Source: JMA; USGS/EHP

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