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Light earthquake: M4.5 quake has struck near Toyoshina in Japan

Earthquake location 36.1725S, 137.7186WA light earthquake magnitude 4.5 (ml/mb) strikes 21 kilometers (13 miles) from Toyoshina in Japan on Wednesday. The temblor was picked up at 09:40:31 / 9:40 am (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). All ids that are associated to the event: us70009lkx. Unique identifier: us70009lkx. Exact location of event, longitude 137.7186 East, latitude 36.1725 North, depth = 10 km. Global time and date of event 13/05/20 / 2020-05-13 00:40:31 / May 13, 2020 @ 12:40 am UTC/GMT. The epicenter of the earthquake was roughly 10 km (6 miles) below the earth’s surface.

Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Itoigawa, Kōfu-shi, Iiyama. Epicenter of the event was 67 km (42 miles) from Nagano-shi (c. 360 200 pop), 74 km (46 miles) from Toyama-shi (c. 325 500 pop), 23 km (14 miles) from Matsumoto (c. 210 700 pop), 95 km (59 miles) from Kōfu-shi (c. 190 000 pop), 90 km (56 miles) from Takaoka (c. 170 100 pop), 57 km (35 miles) from Ueda (c. 126 600 pop), 73 km (45 miles) from Iida (c. 107 100 pop). Nearby country/countries, Japan (c. 127 288 000 pop) (That might be effected).

In the past 24 hours, there have been five, in the last 10 days five, in the past 30 days ten and in the last 365 days ten earthquakes of magnitude 3.0 or greater that has struck near. Each year there are an estimated 13,000 light quakes in the world. 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. This information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 21 km SW of Toyoshina, Japan.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude 137.7186° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 36.1725° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 21km SW of Toyoshina, Japan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2020-05-13 00:40:31 Time when the event occurred. UTC/GMT
Updated 2020-05-21 02:34:58 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 0.54 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.93 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 99 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 us70009lkx Id of event.
Event Code 70009lkx An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us70009lkx, A comma-separated list of event ids that are associated to an event.

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