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Light earthquake: M4.6 quake has struck near Iwaki in Japan

Posted by admin on February 26, 2017 0 Comments

Earthquake location 37.2225S, 141.2018WA light earthquake with magnitude 4.6 (ml/mb) was detected on Sunday, 34 kilometers (21 miles) from Iwaki in Japan. The temblor was picked up at 23:54:45 / 11:54 pm (local time epicenter). Global time and date of event 26/02/17 / 2017-02-26 14:54:45 / February 26, 2017 @ 2:54 pm UTC/GMT. Id of earthquake: us20008mip. Event ids that are associated: us20008mip. The earthquake was roughly at a depth of 58.31 km (36 miles). Exact location of earthquake, 141.2018° East, 37.2225° North, depth 58.31 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

Country/countries that might be effected, Japan (c. 127 288 000 pop). Nearest cities/city/towns to hypocenter/epicentrum was Watari, Kakuda, Daigo (min 5000 pop). Epicenter of the earthquake was 34 km (21 miles) from Iwaki (c. 357 300 pop), 75 km (47 miles) from Kōriyama (c. 340 600 pop), 87 km (54 miles) from Fukushima-shi (c. 294 200 pop), 85 km (53 miles) from Hitachi (c. 186 300 pop), 73 km (45 miles) from Sukagawa (c. 68 800 pop), 63 km (39 miles) from Kitaibaraki (c. 50 800 pop), 95 km (59 miles) from Watari (c. 36 300 pop).

Each year there are an estimated 13,000 light earthquakes in the world. In the past 24 hours, there have been two, in the last 10 days two, in the past 30 days nine and in the last 365 days one hundred and fourty-nine earthquakes of magnitude 3.0 or greater that was reported nearby. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

Questions or comments?

Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home and country. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 34 km NE of Iwaki, Japan.

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More information

Parameter Value Description
Magnitude 4.6 mb The magnitude for the event.
Longitude 141.2018° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 37.2225° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 58.31 km Depth of the event in kilometers.
Place 34km NE of Iwaki, Japan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-02-26 14:54:45 Time when the event occurred. UTC/GMT
Updated 2017-02-26 16:15:10 Time when the event was most recently updated. UTC/GMT
Timezone offset 540 Timezone offset from UTC in minutes at the event epicenter.
Felt 1 The total number of felt reports
CDI 2.2 The maximum reported intensity for the event.
MMI The maximum estimated instrumental intensity for the event.
Alert Level The alert level from the PAGER earthquake impact scale. Green, Yellow, Orange or Red.
Review Status reviewed Indicates whether the event has been reviewed by a human.
Tsunami 0 This flag is set to "1" for large events in oceanic regions and "0" otherwise. The existence or value of this flag does not indicate if a tsunami actually did or will exist.
SIG 326 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network us The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,us, A comma-separated list of network contributors.
Number of Stations Used The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.723 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.19 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 64 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type mb The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us20008mip Id of event.
Event Code 20008mip An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us20008mip, A comma-separated list of event ids that are associated to an event.

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