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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.4 mag has occurred near Oarai in Japan


Earthquake location 36.3051S, 141.1952WA light earthquake magnitude 4.4 (ml/mb) has occurred on Tuesday, 53 kilometers (33 miles) from Oarai in Japan. The epicenter of the earthquake was roughly 43.76 km (27 miles) below the earth’s surface. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The temblor was reported at 22:33:57 / 10:33 pm (local time epicenter). Exact time and date of earthquake 03/07/18 / 2018-07-03 13:33:57 / July 3, 2018 @ 1:33 pm UTC/GMT. Exact location of event, depth 43.76 km, 141.1952° East, 36.3051° North. Id of earthquake: us2000g18p. Event ids that are associated: us2000g18p.

Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Ami, Motegi, Daigo. Epicenter of the event was 87 km (54 miles) from Iwaki (c. 357 300 pop), 67 km (42 miles) from Mito-shi (c. 246 500 pop), 59 km (37 miles) from Hitachi (c. 186 300 pop), 60 km (37 miles) from Hitachi-Naka (c. 156 800 pop), 60 km (37 miles) from Katsuta (c. 156 000 pop), 77 km (48 miles) from Katori-shi (c. 83 200 pop). Nearby country/countries that might be effected, Japan (c. 127 288 000 pop).

In the past 24 hours, there have been two, in the last 10 days two, in the past 30 days five and in the last 365 days sixty-four earthquakes of magnitude 3.0 or greater that have been detected in the same area. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. Every year there are an estimated 13,000 light earthquakes 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. 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: 53 km E of Oarai, Japan.

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More information

Parameter Value Description
Magnitude 4.4 mb The magnitude for the event.
Longitude 141.1952° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 36.3051° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 43.76 km Depth of the event in kilometers.
Place 53km E of Oarai, Japan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-07-03 13:33:57 Time when the event occurred. UTC/GMT
Updated 2018-07-11 17:57:11 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 1.594 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.44 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 128 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 us2000g18p Id of event.
Event Code 2000g18p An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000g18p, A comma-separated list of event ids that are associated to an event.

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