Siberia Earthquake Seismogram
The image below is a seismogram of the eastern Siberia (Koryakia, Russia) earthquake. The following information is provided by the USGS National Earthquake Information Center. The earthquake occurred Friday, April 21, 2006 at 12:25:04 PM local time at the epicenter (Thursday, April 20, 2006 at 07:25:04 PM - Eastern Daylight Time) and 23:25:04 Coordinated Universal Time (UTC). The magnitude was 7.6; the depth was 38.5 km (23.9 miles), and the latitude and longitude was 61.069°N, 167.056°E.
"P" phase waves began arriving at our seismograph about 11 minutes after the quake; other phase waves arrived within an hour.