Home » Special Events » Magnitude 7.7 earthquake in Sea of Okhotsk, Russia
last updated: 08/13/12 22:43:44 (PDT)
On Monday August 13 2012 at 7:59 PM (PDT) the USArray seismic network recorded an earthquake (preliminary M 7.7) located in the Sea of Okhotsk, Russia.
Initial source parameters for this tremor are indicated below. The epicentral distance (i.e. distance separating the epicenter and the closest station in the recording network, TOLK) for the USArray is 4012 km (36.12 degrees).
If you felt the quake, the USGS would like to know. Please add your comments to the USGS page "Did you feel it?".
Summary
| Solution Parameters | |
|---|---|
| Local Date: | Monday August 13, 2012 |
| Local Time: | 7:59 PM PST |
| Universal Time: | 08/14/12 (227) 02:59:42 UTC |
| Magnitude: | 7.7 M |
| Latitude: | 49.7840 |
| Longitude: | 145.1260 |
| Depth: | 626 km |
| Author: | QED |
| Authoritative: | yes |
Proximity to Population Centers
- 158km (98mi) ENE of Poronaysk, Russia
- 227km (141mi) ENE of Shakhtersk, Russia
- 237km (147mi) ENE of Uglegorsk, Russia
- 244km (152mi) ESE of Aleksandrovsk-Sakhalinskiy, Russia
Maps
Mercator projection regional view
The red star denotes the earthquake epicenter. Triangle symbols are active stations at the time of the earthquake in the USArray (excluding ANSS backbone stations and GSN stations, which are represented by a diamond symbol) and colored by network. Blue lines are major rivers. Thin black lines are state boundaries and thick black lines are national boundaries.
| Transportable Array (TA) | |
| UC San Diego (AZ) | |
| CalTech (CI) | |
| ANSS backbone stations (US) | |
| Global Seismograph Network (IU) | |
| Lamont-Doherty Coop Seismic Network (LD) | |
| POLARIS Network (PO) |
Regional satellite view
The red marker denotes the earthquake epicenter.
Detailed terrain view
The red marker denotes the earthquake epicenter.
Waveforms
You may view plots showing this event as recorded by USArray instruments:
- 3 components recorded by TOLK, the closest USArray station to the event
- Large 3 components recorded by TOLK, the closest USArray station to the event
- Vertical components from every eighth USArray station that recorded the event across the whole network
3 components recorded by TOLK, the closest USArray station to the event:
Every arrival station waveforms
View waveforms from any station* that recorded arrivals for the event by entering the station code below (e.g. 109C) and clicking the 'View waveforms' button:
News links
Search the internet
To search the internet for more information about this event, click on the button below:
Current seismic activity measured by USArray
Click the link below to observe an interactive map of earthquakes recorded by the USArray deployment:
Further information
Learn more about the Array Network Facility (ANF) component of USArray, the USArray experiment, the EarthScope project, and the Incorporated Research Institutions for Seismology (IRIS).
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