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

Earthquake location 42.6215S, 141.7821WA light earthquake with magnitude 4.5 (ml/mb) was reported 14 kilometers (9 miles) from Tomakomai in Japan on Friday. Unique identifier: us1000haw5. Ids that are associated to the event: us1000haw5. Exact location, longitude 141.7821° East, latitude 42.6215° North, depth = 12.07 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The epicenter of the earthquake was roughly 12.07 km (7 miles) below the earth’s surface. The temblor was reported at 09:14:25 / 9:14 am (local time epicenter). Global date and time of event UTC/GMT: 12/10/18 / 2018-10-12 00:14:25 / October 12, 2018 @ 12:14 am.

Country/countries that might be effected, Japan (c. 127 288 000 pop). Closest city/cities/towns to epicentrum/hypocenter was Shimo-furano, Otaru, Bibai (min 5000 pop). The epicenter was 61 km (38 miles) from Sapporo (c. 1 883 000 pop), 15 km (9 miles) from Tomakomai (c. 174 800 pop), 90 km (56 miles) from Otaru (c. 143 800 pop), 57 km (36 miles) from Ebetsu (c. 134 000 pop), 73 km (46 miles) from Muroran (c. 96 200 pop), 24 km (15 miles) from Chitose (c. 92 900 pop), 64 km (40 miles) from Iwamizawa (c. 85 100 pop).

Every year there are an estimated 13,000 light earthquakes in the world. 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 five, in the past 30 days eighteen and in the last 365 days seventy-four earthquakes of magnitude 3.0 or greater that have been detected in the same area.

Did you feel the quake?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity and damage at your home, city and country. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 14 km E of Tomakomai, Japan. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude 141.7821° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 42.6215° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 12.07 km Depth of the event in kilometers.
Place 14km E of Tomakomai, Japan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-10-12 00:14:25 Time when the event occurred. UTC/GMT
Updated 2018-10-12 00:43:56 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 1.186 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.81 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 mwr The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us1000haw5 Id of event.
Event Code 1000haw5 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000haw5, A comma-separated list of event ids that are associated to an event.

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