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Natural Hazard
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Type
Earthquake
Name
Tokachi-oki earthquake
Date
2003/09/26
Local Time
04:50
Status
Published

Location

Country of Origin
Japan
Province of Origin
Hokkaido

Occurrence

Magnitude
8.3 Mw
Intensity
IX MSK
PGA
0.75 g
Description of the Occurrence
The earthquake was characterized by ground motions with large amplitude and long period (4-8 s) in the Yufutsu sedimentary basin. This generated a tsunami with an estimated wave height of 4 m along the southeastern coast of Hokkaido. The earthquake was followed by further earthquakes with moment magnitudes ranging between 4-7.

Consequences

Area Affected
10,000 - 100,000 km²
Population Affected
100 - 1,000
Injured
100 - 1,000
Economic Losses
10 - 100 M USD
Description of the Consequences
Due to the earthquake at least 589 people were injured, extensive damage, landslides and power outages occurred, and many roads were damaged in southeastern Hokkaido.
ID: 61, Created: Vincenzo ARCIDIACONO, 2014-09-09 12:31:11 – Last Updated: Elisabeth KRAUSMANN, 2017-07-13 15:34:30

Attachments

NoDescriptionFile Size
1.Slip distribution of the 2003 Tokachi-oki earthquake estimated from tsunami waveform inversion 605.54KB

Natech Accidents

NoDateSite
1.2003/09/26Hokkaido Refinery
Last update: 2024/04/17 | Top