2011 Shizuoka Earthquake
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The 2011 Shizuoka earthquake () was an
earthquake An earthquake (also known as a quake, tremor or temblor) is the shaking of the surface of the Earth resulting from a sudden release of energy in the Earth's lithosphere that creates seismic waves. Earthquakes can range in intensity, from ...
that occurred approximately 42 km (26 mi) north-northeast of
Shizuoka City is the capital city of Shizuoka Prefecture, Japan, and the prefecture's second-largest city in both population and area. It has been populated since prehistoric times. the city had an estimated population of 690,881 in 106,087 households, and ...
at 22:31 (
Japan Time , or , is the standard time zone in Japan, 9 hours ahead of UTC (UTC+09:00). Japan does not observe daylight saving time, though its introduction has been debated on several occasions. During World War II, the time zone was often referred to as ...
), 15 March 2011. The magnitude was 6.0 or 6.4,「平成23 年(2011 年)東北地方太平洋沖地震」について(第28 報)
Press Release), 25 March 2011. Published by Japan Meteorological Agency.
and the depth was 9 km (5.6 mi). The
hypocenter In seismology, a hypocenter or hypocentre () is the point of origin of an earthquake or a subsurface nuclear explosion. A synonym is the focus of an earthquake. Earthquakes An earthquake's hypocenter is the position where the strain energy s ...
of this earthquake is thought to have been near the presumed location of the
magma chamber A magma chamber is a large pool of liquid rock beneath the surface of the Earth. The molten rock, or magma, in such a chamber is less dense than the surrounding country rock, which produces buoyant forces on the magma that tend to drive it upw ...
of
Mount Fuji , or Fugaku, located on the island of Honshū, is the highest mountain in Japan, with a summit elevation of . It is the second-highest volcano located on an island in Asia (after Mount Kerinci on the island of Sumatra), and seventh-highest p ...
. It may have been a
triggered earthquake Remotely triggered earthquakes are a result of the effects of large earthquakes at considerable distance, outside of the immediate aftershock zone. The farther one gets from the initiating earthquake in both space and time, the more difficult it is ...
caused by the
2011 Tohoku earthquake Eleven or 11 may refer to: *11 (number), the natural number following 10 and preceding 12 * one of the years 11 BC, AD 11, 1911, 2011, or any year ending in 11 Literature * ''Eleven'' (novel), a 2006 novel by British author David Llewellyn *''El ...
, which occurred four days earlier, on 11 March 2011. It was sinistral strike-slip fault earthquake. It had a maximum JMA intensity of ''Shindo'' 6+ (
Fujinomiya is a city located in central Shizuoka Prefecture, Japan. , the city had an estimated population of 132,507 in 56,655 households, and a population density of 340 persons per km². The total area of the city is . History The city name comes from ...
) or VIII (''Severe'') on the
Mercalli intensity scale The Modified Mercalli intensity scale (MM, MMI, or MCS), developed from Giuseppe Mercalli's Mercalli intensity scale of 1902, is a seismic intensity scale used for measuring the intensity of shaking produced by an earthquake. It measures the eff ...
. The earthquake left 80 people injured, and caused some
power outage A power outage (also called a powercut, a power out, a power failure, a power blackout, a power loss, or a blackout) is the loss of the electrical power network supply to an end user. There are many causes of power failures in an electricit ...
s.


References


External links


2011年3月15日の静岡県東部の地震 (M6.4) について
- 気象庁 地震予知情報課 {{Earthquake-stub March 2011 events in Japan 2011 earthquakes Earthquakes in Japan Earthquakes of the Heisei period