Magnitude 4.7 - NORTH KOREA

2009 May 25 00:54:43 UTC

Versión en Español

Earthquake Details

  • This event has been reviewed by a seismologist.
Magnitude4.7
Date-Time
Location41.306°N, 129.029°E
Depth0 km (~0 mile) set by location program
RegionNORTH KOREA
Distances70 km (45 miles) NNW of Kimchaek, North Korea
95 km (60 miles) SW of Chongjin, North Korea
185 km (115 miles) SSW of Yanji, Jilin, China
375 km (235 miles) NE of PYONGYANG, North Korea
Location Uncertaintyhorizontal +/- 3.8 km (2.4 miles); depth fixed by location program
ParametersNST= 75, Nph= 75, Dmin=371.4 km, Rmss=0.57 sec, Gp= 72°,
M-type=body wave magnitude (Mb), Version=A
Source
  • USGS NEIC (WDCS-D)
Event IDus2009hbaf
  • Did you feel it? Report shaking and damage at your location. You can also view a map displaying accumulated data from your report and others.

Earthquake Summary

Small globe showing earthquakeSmall map showing earthquake

Felt Reports

Underground nuclear explosion.

Tectonic Summary

The shallow, magnitude 4.7 seismic event that occurred on 25 May 2009 at 00:54:43 UTC is linked to the claim of a nuclear test by North Korean officials. While the USGS cannot positively identify the seismic event as a nuclear test, it was shallow and located in the vicinity of the 9 October 2006 North Korean nuclear test (magnitude 4.3). Moreover, comparison of the seismograms of the 9 October 2006 and 25 May 2009 events at individual seismic stations shows similar features, suggesting that the two events are in close spatial proximity and are the same type of source, although the more recent event is larger.

Earthquake Information for Asia


Bookmark and Share