September 25, 2003 Hokkaido, Japan Earthquake

General Information

Source	Date	Time (UT)	Latitude	Longitude	Depth (km)	Magnitude
USGS	9/25/2003	19:50:07	41.848N	143.770E	33.0	8.3
IRIS	9/25/2003	19:50:08	42.17N	144.72E	33.0	8.0

• USGS Event Page

Seismograms

• IU PEPP Network Recording (recording of entire event, time span is greater than 1 hour)
• IU PEPP Network Recording p-wave arrival
• PN PEPP Network Recording p-wave arrivals (recording of entire event, including Indiana and neighboring areas)
• PPFCH Recording   (Franklin Central HS, Indianapolis, IN)
• PPBLO 3-Component Record   (entire event, Indiana University, Bloomington, IN)
• PPBLO 3-Component Record p-wave arrival   (Indiana University, Bloomington, IN)
• Seismic Records for this Event   (USGS)
• Download Data for this Event   (IRIS - WILBER II)

Earthquake Maps

• Epicenter Location Map   (USGS)
• Epicenter Location Map showing depth and distance to nearby cities   (USGS)
• Historical Seismic Activity Map (USGS)
• Generalized Seismic Hazard Map of the region   (USGS)
• Regional Seismicity Cross-section   (USGS)

News Articles

• Tsunami warning issued from Nikolski to Attu   Daily News Miner, Alaska (Sep 25)
• Hundreds injured in Japan quake   CNN.com (Sep 26)
• 243 hurt, 41,000 flee as quake rocks Japan   Toronto Star, Canada (Sep 26)
• Powerful earthquakes injure 450 in northern Japan   Mainichi Daily News, Japan (Sep 26)
• Chaos as massive quake hits Hokkaido   The Straits Times Interactive, Singapore (Sep 26)
• Fire as quake aftershocks hit Japan   SwissPolitics.org (Sep 28)
• 573 injured, 2 still missing in Hokkaido quakes   Japan Today, Japan (Sep 28)

Pictures

• Strong quake hits north Japan   BBC Online - Includes video (Sep 26)
• In Pictures: Hokkaido earthquake   BBC Online (Sep 26)
• Aftershock rocks Japan island   BBC Online (Sep 27)
• A worker checks damage to a road, Hokkaido, Japan   (Reuters)
• A worker begins clearing the floor of books that fell off shelves at a book store in Obihiro, Japan   (Reuters)
• Workers check damage to a main road in Chokubetsu, northern Japan on Friday.   (Reuters)

Previous Quakes in this Region

• Seismic Activity over the past week in the North Pacific (Globe)   (USGS)
• Mag. 7.0 May 26, 2003 Sendai, Japan Earthquake (PEPP Page)
• Mag. 6.7 October 6, 2000 Western Honshu, Japan Earthquake (USGS)
• Ocean off Hokkaido hit by quakes in past   Daily Yoimuri, Japan (Sep 26)

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