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Earthquake: M 4.2 quake strikes near Shiraoi in Japan


Earthquake location 42.632S, 141.2723WA light earthquake magnitude 4.2 (mg/mb) was reported Thursday, 11 kilometers (7 miles) from Shiraoi in Japan. The temblor was reported at 01:52:58 / 1:52 am (local time epicenter) at a depth of 144.1 km (90 miles). Global time of event 01/04/15 / 2015-04-01 16:52:58 / April 1, 2015 @ 4:52 pm UTC/GMT. A tsunami warning has not been issued, according to the U.S. Geological Survey. Exact location of event, longitude 141.2723 East, latitude 42.632 North, depth 144.1 km, unique identifier, us10001stz.

Close countries, Japan (c. 127 288 000 pop). The epicenter was 48 km (30 miles) from Sapporo (c. 1 883 000 pop), 27 km (17 miles) from Tomakomai (c. 174 800 pop), 66 km (41 miles) from Otaru (c. 143 800 pop), 58 km (36 miles) from Ebetsu (c. 134 000 pop), 42 km (26 miles) from Muroran (c. 96 200 pop). Nearest city, towns to epicentrum/hypocenter was Bibai, Yoichi, Iwamizawa.

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Leave a comment or report about shaking, activity and damage at your home, city and country. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded in: 11 km NW of Shiraoi, Japan.


More information

Parameter Value Description
Magnitude 4.2 mb The magnitude for the event.
Longitude 141.2723° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 42.632° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 144.1 km Depth of the event in kilometers.
Place 11km NW of Shiraoi, Japan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2015-04-01 16:52:58 Time when the event occurred. UTC/GMT
Updated 2015-04-01 23:41:04 Time when the event was most recently updated. UTC/GMT
Timezone offset 540 Timezone offset from UTC in minutes at the event epicenter.
Felt The total number of felt reports
CDI 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 271 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 0.246 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.74 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 72 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 us10001stz Id of event.
Event Code 10001stz An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us10001stz, A comma-separated list of event ids that are associated to an event.

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