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Home » Special Events » Magnitude 4.7 seismic event (possible nuclear test), North Korea
last updated: 05/26/09 07:57.24 (PDT)
On Sunday May 24 2009 at 5:54 PM (PDT) the USArray seismic network recorded a seismic event (possible nuclear test) (preliminary mb 4.7) located in North Korea.
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, NEW) for the USArray is 8159 km (73.41 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: | Sunday May 24, 2009 |
| Local Time: | 5:54 PM PST |
| Universal Time: | 05/25/09 (145) 00:54.43 UTC |
| Magnitude: | 4.7 mb |
| Latitude: | 41.3040 |
| Longitude: | 129.0170 |
| Depth: | 0 km |
| Author: | QED_weekly |
| Authoritative: | yes |
Proximity to Population Centers
- 70 km (45 miles) NNW of Kimchaek, North Korea
- 95 km (60 miles) SW of Chongjin, North Korea
- 180 km (115 miles) SSW of Yanji, Jilin, China
- 375 km (235 miles) NE of Pyongyang, North Korea
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. Gray lines are major rivers.
| Transportable Array (TA) | |
| UC San Diego (AZ) | |
| CalTech (CI) | |
| Uni. Utah (UU) | |
| ANSS backbone stations (US) | |
| Global Seismograph Network (IU) |
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 NEW, the closest USArray station to the event (0.8–3.0 Hz Band Pass filtered), time window of 1 minute
- 3 components recorded by C15A, the USArray station with one of the clearest arrivals (0.8–3.0 Hz Band Pass filtered), time window of 20 minutes
- 3 components recorded by C15A, the USArray station with one of the clearest arrivals (0.8–3.0 Hz Band Pass filtered), time window of 2 minutes
- Vertical components recorded by C stations, showing the variability of the recordings (0.8–3.0 Hz Band Pass filtered), time window of one minute
- Vertical components from the 50 closest USArray stations that recorded the event across the whole network (0.8–3.0 Hz Band Pass filtered), time window of one minute
3 components recorded by NEW, the closest USArray station to the event (0.8–3.0 Hz Band Pass filtered), time window of 1 minute:
News links
- USGS page for this event
- New York Times: "North Korea Claims to Conduct 2nd Nuclear Test"
- BBC: "North Korea conducts nuclear test"
- Reuters: "U.N. council condemns North Korea nuclear test"
- CNN: "World outraged by North Korea's latest nuke test"
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 links below to observe near real time maps 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).
