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Light earthquake, 4.6 mag strikes near Kuroiso in Japan

Posted by admin on February 18, 2018 0 Comments

Earthquake location 37.1463S, 140.1669WA light earthquake with magnitude 4.6 (ml/mb) was detected on Sunday, 22 kilometers (14 miles) from Kuroiso in Japan. The 4.6-magnitude earthquake has occurred at 19:01:41 / 7:01 pm (local time epicenter). Event id: us2000d45b. Ids that are associated to the earthquake: us2000d45b. Date and time of earthquake in UTC/GMT: 18/02/18 / 2018-02-18 10:01:41 / February 18, 2018 @ 10:01 am. Exact location of event, longitude 140.1669 East, latitude 37.1463 North, depth = 106.59 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The earthquake occurred at a depth of 106.59 km (66 miles) below the earth’s surface.

Close country/countries, Japan (c. 127 288 000 pop) (That might be effected). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Makabe, Yūki, Shimodate. Event epicenter was 69 km (43 miles) from Utsunomiya-shi (c. 449 900 pop), 64 km (40 miles) from Iwaki (c. 357 300 pop), 34 km (21 miles) from Kōriyama (c. 340 600 pop), 72 km (45 miles) from Fukushima-shi (c. 294 200 pop), 93 km (58 miles) from Mito-shi (c. 246 500 pop), 74 km (46 miles) from Hitachi (c. 186 300 pop), 90 km (56 miles) from Hitachi-Naka (c. 156 800 pop).

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

Did you feel it?

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: 22 km NNE of Kuroiso, Japan.

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More information

Parameter Value Description
Magnitude 4.6 mb The magnitude for the event.
Longitude 140.1669° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 37.1463° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 106.59 km Depth of the event in kilometers.
Place 22km NNE of Kuroiso, Japan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-02-18 10:01:41 Time when the event occurred. UTC/GMT
Updated 2018-02-18 10:25:44 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 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 0.875 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.71 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 115 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 us2000d45b Id of event.
Event Code 2000d45b An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000d45b, A comma-separated list of event ids that are associated to an event.

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