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Light World Earthquakes Magnitude 4-4.9

Light earthquake 4.4 mag, 33 km E of Tomakomai, Japan


Earthquake location 42.6171S, 142.0118WA light earthquake magnitude 4.4 (ml/mb) has struck on Thursday, 33 kilometers (21 miles) from Tomakomai in Japan. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of event, longitude 142.0118 East, latitude 42.6171 North, depth = 47.54 km. The earthquake occurred at a depth of 47.54 km (30 miles) below the earth’s surface. Global time and date of event 05/09/18 / 2018-09-05 21:53:23 / September 5, 2018 @ 9:53 pm UTC/GMT. The temblor was picked up at 06:53:23 / 6:53 am (local time epicenter). Id of earthquake: us2000hgjf. Event ids that are associated: us2000hgjf.

The epicenter was 74 km (46 miles) from Sapporo (c. 1 883 000 pop), 33 km (21 miles) from Tomakomai (c. 174 800 pop), 66 km (41 miles) from Ebetsu (c. 134 000 pop), 90 km (56 miles) from Muroran (c. 96 200 pop), 37 km (23 miles) from Chitose (c. 92 900 pop), 68 km (42 miles) from Iwamizawa (c. 85 100 pop). Close country/countries that might be effected, Japan (c. 127 288 000 pop). Closest city/cities/towns to epicentrum/hypocenter was Muroran, Ishikari, Shimo-furano (min 5000 pop).

In the past 24 hours, there have been thirty-five, in the last 10 days thirty-five, in the past 30 days thirty-six and in the last 365 days fifty-eight earthquakes of magnitude 3.0 or greater that have been detected nearby. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. Each year there are an estimated 13,000 light quakes in the world.

Questions or comments?

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. 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: 33 km E of Tomakomai, Japan.

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More information

Parameter Value Description
Magnitude 4.4 mb The magnitude for the event.
Longitude 142.0118° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 42.6171° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 47.54 km Depth of the event in kilometers.
Place 33km 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 2018-09-05 21:53:23 Time when the event occurred. UTC/GMT
Updated 2018-09-28 22:14:16 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 298 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 1.041 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.7 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 88 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 us2000hgjf Id of event.
Event Code 2000hgjf An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000hgjf, A comma-separated list of event ids that are associated to an event.

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