QQuakeFacts

Data last collected:

USGS usp000hzf6

7 Apr 2011, 15:32

29 km ESE of Ishinomaki, Japan

A magnitude 7.1 mww earthquake at 42 km depth.

Depth42 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated13 September 2025Latest timestamp stored in this record

Published location

Where is 29 km ESE of Ishinomaki, Japan?

This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.

38.276000, 141.588000

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What the numbers mean

Magnitude measures event size; depth locates the source below the surface. Neither value alone establishes local damage or personal risk.

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Nearby events with a similar magnitude

Catalog fields and provenance
Event ID
usp000hzf6
Coordinates
38.276, 141.588
Network
us
Significance
1112

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Questions this evidence can answer

01What exactly is this record?

Use the name, place, date and identifiers above to confirm that you have the right 29 km ESE of Ishinomaki, Japan earthquake: magnitude 7.1 and depth | QuakeFacts record.

02What does the evidence establish?

Read the reported values with their units, coverage dates and source notes. Keep observed facts separate from estimates or interpretation.

03What should I verify next?

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A closer look at 29 km ESE of Ishinomaki, Japan

Depth in another unit

The recorded event depth of 42 km is approximately 26.1 miles below the source reference surface. Depth alone does not describe damage or local hazard.

Interpreting the recorded coordinates

The published position for 29 km ESE of Ishinomaki, Japan is 38.276° north and 141.588° east. This expresses the source coordinates in hemispheres; it does not establish an entrance, public access or a safe route.

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