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Light earthquake, 4.5 mag has occurred near Shiraoi in Japan

Posted by admin on March 21, 2018 0 Comments

Earthquake location 42.2566S, 141.5054WA light earthquake magnitude 4.5 (ml/mb) has occurred on Thursday, 35 kilometers (22 miles) from Shiraoi in Japan. Exact location of event, depth 104.91 km, 141.5054° East, 42.2566° North. Event ids that are associated to the earthquake: us1000d7ba. Id of event: us1000d7ba. The temblor was detected at 08:15:06 / 8:15 am (local time epicenter). The epicenter of the earthquake was roughly 104.91 km (65 miles) below the earth’s surface. Global date and time of event UTC/GMT: 21/03/18 / 2018-03-21 23:15:06 / March 21, 2018 @ 11:15 pm. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Ebetsu, Sapporo, Kamiiso. Close country/countries that might be effected, Japan (c. 127 288 000 pop). Earthquake epicenter was 91 km (56 miles) from Sapporo (c. 1 883 000 pop), 83 km (52 miles) from Hakodate (c. 275 700 pop), 43 km (27 miles) from Tomakomai (c. 174 800 pop), 95 km (59 miles) from Ebetsu (c. 134 000 pop), 43 km (27 miles) from Muroran (c. 96 200 pop), 64 km (40 miles) from Chitose (c. 92 900 pop), 80 km (50 miles) from Kitahiroshima (c. 62 400 pop).

There are an estimated 13,000 light quakes in the world each year. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days two and in the last 365 days twenty-two earthquakes of magnitude 3.0 or greater that has struck near.

Questions or comments?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage at your home, city 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: 35 km SSE of Shiraoi, Japan.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude 141.5054° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 42.2566° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 104.91 km Depth of the event in kilometers.
Place 35km SSE 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 2018-03-21 23:15:06 Time when the event occurred. UTC/GMT
Updated 2018-03-21 23:42:31 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 312 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 1.252 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.89 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 87 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 us1000d7ba Id of event.
Event Code 1000d7ba An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000d7ba, A comma-separated list of event ids that are associated to an event.

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