2012 Chiba earthquake
| 千葉県東方沖地震 | |
   Tokyo | |
| UTC time | 2012-03-14 12:05:04 |
|---|---|
| ISC event | 605114238 |
| USGS-ANSS | ComCat |
| Local date | 14 March 2012 [1] |
| Local time | 21:05 JST |
| Magnitude | 6.1 Mj |
| Depth | 10.0 km (6.2 mi) |
| Epicenter | 35°45′N 140°56′E / 35.75°N 140.93°E |
| Type | Normal[1] |
| Areas affected | Japan |
| Max. intensity | MMI VII (Very strong) JMA 5+[2] |
| Tsunami | No |
| Landslides | No |
| Casualties | 1 dead, 1 injured |
The 2012 Chiba earthquake (千葉県東方沖地震, Chiba-ken Tо̄hо̄ Oki Jishin, lit. 'Eastern Chiba Prefecture offshore earthquake') occurred along the northeastern coast of
Effects
Despite its considerable magnitude the earthquake caused only localised light to moderate structural damage in Chiba, owing in part to Japan's advanced
Background
A seismically volatile country, Japan frequently experiences natural disasters such as earthquakes, volcanic eruptions and tsunamis.
Situated on the Bōsō Peninsula in eastern Kantō, Chiba Prefecture is surrounded by a region of complex tectonic settings.[11] To the south the Philippine Sea Plate is subducted beneath Okhotsk Plate creating the offshore Sagami Trench; the Pacific Plate subducts the region from the east, forming the Japan Trench.[12] Despite this Chiba Prefecture has experienced relatively little effects from earthquakes.[13] Since 1923 most events have occurred well offshore, within the magnitude 5.0–6.0 Mj range, at somewhat shallow focal depths.[14] The most significant earthquake, known as the 1987 Chiba-ken Toho-oki earthquake, occurred on 17 December 1987.
See also
References
- ^ a b Preliminary Earthquake Report: Magnitude 6.0 near the East Coast of Honshu, Japan (Report). United States Geological Survey. 14 March 2012. Retrieved 29 March 2012.[permanent dead link]
- ^ Earthquake Information (Earthquake and Seismic Intensity Information) Issued at 21:09 JST 14 Mar 2012 (Report). Japan Meteorological Agency. 14 March 2012. Archived from the original on 16 April 2012. Retrieved 13 April 2012.
- ^ "M6.1 quake jolts Chiba, surrounding areas". Japan Today. 14 March 2012. Retrieved 2021-08-18.
- ^ 千葉県内１人死亡、１人負傷 １４日の千葉東方沖地震. Asahi Shimbun (in Japanese). 15 March 2012. Retrieved 29 March 2012.
- ^ PAGER – M 5.7 – Near the East Coast of Honshu, Japan (Report). United States Geological Survey. 14 March 2012. Retrieved 29 March 2012.
- ^ 千葉県東方沖を震源とする地震（確定報） (PDF) (Report) (in Japanese). Fire and Disaster Management Agency. 15 March 2012. Archived from the original (PDF) on 19 April 2012. Retrieved 29 March 2012.
- PMID 17699497.
- .
- ^ "2: The Geology and Tectonics of the Tohoku Region". Development of Methodologies for the Identification of Volcanic and Tectonic Hazards to Potential HLW Repository Sites in Japan: The Tohoku Case Study (Report). Nuclear Waste Management Organization of Japan. March 2009. NUMO-TR-08-03.
- Bibcode:2003AGUFM.S52B0142N. Archived from the originalon 2012-04-11. Retrieved 2012-04-14.
- ^ "Basic Information on Disasters". Chiba Prefectural Police Headquarters. Archived from the original on 24 February 2012. Retrieved 15 April 2012.
- ISSN 1343-8832.
- ^ Haruko Sekiguchi, Masayuki Yoshimi and Haruo Horikawa (23–26 August 2011). Broadband ground motion simulation for great interplate earthquakes with multi-scale heterogeneous source modeling (PDF). 4th International IASPEI/IAEE Symposium on the Effects of Surface Geology on Seismic Motion. Santa Barbara, CA: University of California Santa Barbara. Archived from the original (PDF) on 14 May 2014. Retrieved 15 April 2012.
- ^ Earthquakes Off-shore East of Chiba Prefecture in April (Report). Headquarters for Earthquake Research Promotion. May 2011. Retrieved 14 April 2012.
- Earthquake Off-shore Southeast of Chiba prefecture on February 5 (Report). Headquarters for Earthquake Research Promotion. March 2011. Retrieved 14 April 2012.
External links
- The International Seismological Centre has a bibliography and/or authoritative data for this event.