U.S. Geological Survey (USGS) · Understand these data
Earthquake · 9.1 mww
Onagawa Chō · 82.34 km ESE
- Origin time (UTC)
- Reference-place local time · Asia/Tokyo
- Magnitude
- 9.1 mww
- Depth
- 29 km
- Epicentre coordinates
- 38.3°, 142.37°
- Source review
- Reviewed
Source: U.S. Geological Survey (USGS)
Original magnitude measurements
Magnitude scales describe different measurements. Values from different scales are not directly interchangeable.
| Source | Magnitude | Source revision · UTC |
|---|---|---|
| usgs · official20110311054624120_30 | 9 mww | |
| usgs · official20110311054624120_30 | 9.1 Mww | |
| usgs · official20110311054624120_30 | 9.1 mww | |
| usgs · official20110311054624120_30 | 8.72 me | |
| usgs · official20110311054624120_30 | 9.1 mww | |
| usgs · official20110311054624120_30 | 9.09 mw | |
| usgs · official20110311054624120_30 | 9.1 mww | |
| usgs · official20110311054624120_30 | 9.1 mww |
- U.S. Geological Survey (USGS) · Source event ID:
official20110311054624120_30· Source revision: UTC
Source products
Products are available only when supplied by the source. A tsunami-related flag is not a current official warning.
- focal-mechanism · usgs · UTC
- moment-tensor · usgs · UTC
- moment-tensor · usgs · UTC
- moment-tensor · usgs · UTC
- moment-tensor · usgs · UTC
- shakemap · usgs · UTC
- shakemap · usgs · UTC
Reference places
- Onagawa Chō · 82.34 km ESE · Asia/Tokyo
Distances describe geographic context. Nearby events are not automatically aftershocks or evidence of future risk.
Catalogue coverage
The historical catalogue includes USGS M6+ from 1900, M4.5+ from 1970 and delivered events since the project began. It is not a complete record of all small earthquakes.
— UTC