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Magnitude 8.3 – Hokkaido, Japan Region

Information

Place

Hokkaido region, northwestern Pacific Ocean near eastern Japan

Depth

Usually deep to intermediate earthquakes in this subduction zone (often around 30â€“100 km depending on the event)

Time

Depends on the specific earthquake event/date

Type of Boundary

Convergent plate boundary (subduction zone)

Characteristics

Very powerful earthquake, occurs where the Pacific Plate moves beneath the Okhotsk/North American Plate. Can produce strong shaking and possible tsunamis.

Fault

Reverse/megathrust fault

Location

Offshore east of Hokkaido near the Japan Trench/Kuril Trench

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M 8.3 - Kuril Islands

Time

1994-10-04 13:22:55 UTC

1994-10-04 13:22:55 UTC at epicenter

Location

43.773°N 147.321°E

Depth

14.00 km (8.70 mi)

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M 8.3 - Hokkaido, Japan region

ShakeMap - IX

Time

2003-09-25 19:50:06 UTC

2003-09-25 19:50:06 UTC at epicenter

Location

41.815°N 143.910°E

Depth

27.00 km (16.78 mi)