PAGER - M 6.1 - NEAR THE EAST COAST OF HONSHU, JAPAN

Alert level does not include impacts from earthquake-related hazards such as tsunamis, landslides, fires or liquefaction.

Earthquake Shaking Alert Level: GREEN

Download Alert PDFWhat's this?Sunday, March 27th, 2011 at 22:23:58 UTC (07:23:58 local)Location: 38.4° N, 142.1° EDepth: 17kmEvent Id: USC0002CQAAlert Version: 2Created: 1 hour, 45 minutes after earthquake.

Alert Information

Green alert for shaking-related fatalities and economic losses. There is a low likelihood of casualties and damage.

Show graphs as tables

Estimated Fatalities

Estimated Economic Losses

Detailed Information

• Summary
• Recent Earthquake History
• Full City Exposure List

Estimated Population Exposed to Earthquake Shaking

Estimated Modified Mercalli Intensity		I	II-III	IV	V	VI	VII	VIII	IX	X
Est. Population Exposure		---*	---*	12,393k	1,554k	0	0	0	0	0
Perceived Shaking		Not Felt	Weak	Light	Moderate	Strong	Very Strong	Severe	Violent	Extreme
Potential Structure Damage	Resistant	none	none	none	V. Light	Light	Moderate	Moderate/Heavy	Heavy	V. Heavy
	Vulnerable	none	none	none	Light	Moderate	Moderate/Heavy	Heavy	V. Heavy	V. Heavy

*Estimated exposure only includes population within calculated shake map area

Population Exposure
Population per ~1 sq. km. from LandScan

Structure Information Summary

Overall, the population in this region resides in structures that are resistant to earthquake shaking, though some vulnerable structures exist.

Historical Earthquakes (with MMI)

Date (UTC)	Dist(km)	Mag	Max MMI(#)	Shaking Deaths
1983-05-26	346	7.7	VII (174k)	104
1989-02-19	329	5.5	VI (9m)	1
2003-09-25	395	5.7	VI (5k)	0

Recent earthquakes in this area have caused secondary hazards such as landslides and fires that might have contributed to losses.

Selected Cities Exposedfrom GeoNames Database of Cities with 1,000 or more residents.

MMI	City	Population
IV	Sendai	1,038k
IV	Iwaki	357k
IV	Koriyama	341k
IV	Akita	320k
IV	Morioka	295k
IV	Fukushima	294k
IV	Yamagata	255k
III	Utsunomiya	450k
III	Mito	247k
III	Hachinohe	239k
III	Hitachi	186k

(k = x1,000)

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PAGER content is automatically generated, and only considers losses due to structural damage. Limitations of input data, shaking estimates, and loss models may add uncertainty. PAGER results are generally available within 30 minutes of the earthquake’s occurrence. However, information on the extent of shaking will be uncertain in the minutes and hours following an earthquake and typically improves as additional sensor data and reported intensities are acquired and incorporated into models of the earthquake's source. Users of PAGER estimates should account for uncertainty and always seek the most current PAGER release for any earthquake.

http://earthquake.usgs.gov/earthquakes/pager/events/us/c0002cqa/index.html