Strong Quakes Strike Japan, Canada Regions

M6.9 Strikes Izu Islands, Japan Region

The quake, measuring 6.9MW and centered at 29.8°N, 139°E, struck at a depth of about 400km, according to Japan Meteorological Agency (JMA). NO tsunami expected.

The event occurred at about 00:18UTC on Wednesday September 4, 2013.

Pacific Ring of Fire – Earthquake Location Map, Sept. 4, 2013. Image source: USGS/EHP.

M6.0  quake strikes 191km WSW of Bella Bella, Canada

A magnitude 6.0 quake struck offshore about 191km (119mi) WSW of Bella Bella, Canada, USGS/EHP reported.

The shallow quake occurred at a depth of about 1km, centered at 51.2°N 130.4°W, said USGS.

The mainshock was followed by several significant aftershocks, the largest of which measured 5.9Mw as of posting.

1. 5.9Mw + 163km SW of Bella Bella, Canada 2013-09-04 09:23:12 UTC+09:00 Depth of 9.9 km
2. 5.0Mw + 188km SW of Bella Bella, Canada 2013-09-04 07:29:32 UTC+09:00 9.8 km