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Light World Earthquakes Magnitude 4-4.9

Light earthquake 4.1 mag, 78 km ENE of Mutsu, Japan


Earthquake location 41.5593S, 142.0799WA light earthquake with magnitude 4.1 (ml/mb) was reported 78 kilometers (48 miles) from Mutsu in Japan on Friday. Unique identifier: us2000h62t. Ids that are associated to the event: us2000h62t. Global date and time of event UTC/GMT: 23/08/18 / 2018-08-23 20:52:45 / August 23, 2018 @ 8:52 pm. The epicenter was at a depth of 56.45 km (35 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of event, longitude 142.0799 East, latitude 41.5593 North, depth = 56.45 km. The temblor was reported at 05:52:45 / 5:52 am (local time epicenter).

Country/countries that might be effected, Japan (c. 127 288 000 pop). Closest city/cities/towns to epicentrum/hypocenter was Shizunai-furukawachō, Mutsu (min 5000 pop). Epicenter of the earthquake was 78 km (48 miles) from Mutsu (c. 49 200 pop), 89 km (56 miles) from Shizunai-furukawachō (c. 22 400 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 seven, in the last 10 days eight, in the past 30 days twelve and in the last 365 days fifty earthquakes of magnitude 3.0 or greater that have been detected nearby.

Did you feel anything?

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: 78 km ENE of Mutsu, Japan.

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More information

Parameter Value Description
Magnitude 4.1 mb The magnitude for the event.
Longitude 142.0799° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 41.5593° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 56.45 km Depth of the event in kilometers.
Place 78km ENE of Mutsu, Japan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-08-23 20:52:45 Time when the event occurred. UTC/GMT
Updated 2018-09-12 20:19:08 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 259 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 0.925 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.74 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 135 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 us2000h62t Id of event.
Event Code 2000h62t An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000h62t, A comma-separated list of event ids that are associated to an event.

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