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Light earthquake, 4.5 mag was detected near Misawa in Japan


Earthquake location 40.9997S, 142.2155WA light earthquake with magnitude 4.5 (ml/mb) was reported 80 kilometers (50 miles) from Misawa in Japan on Tuesday. Exact location of event, longitude 142.2155 East, latitude 40.9997 North, depth = 58.42 km. The 4.5-magnitude earthquake was detected at 13:16:46 / 1:16 pm (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact time and date of earthquake 09/10/18 / 2018-10-09 04:16:46 / October 9, 2018 @ 4:16 am UTC/GMT. Unique identifier: us1000h952. Ids that are associated to the event: us1000h952. The earthquake occurred at a depth of 58.42 km (36 miles).

Epicenter of the event was 82 km (51 miles) from Hachinohe (c. 239 000 pop), 90 km (56 miles) from Mutsu (c. 49 200 pop), 78 km (48 miles) from Misawa (c. 42 800 pop). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Mutsu, Hachinohe, Misawa. Country/countries that might be effected, Japan (c. 127 288 000 pop).

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. In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days three and in the last 365 days thirty-eight earthquakes of magnitude 3.0 or greater that have been detected in the same area.

Did you feel it?

Did objects rattle, topple over, or fall off shelves? Leave a comment or report about activity, shaking and damage at your home, country and city. 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: 80 km ENE of Misawa, Japan.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude 142.2155° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 40.9997° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 58.42 km Depth of the event in kilometers.
Place 80km ENE of Misawa, Japan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-10-09 04:16:46 Time when the event occurred. UTC/GMT
Updated 2018-10-09 04:47:16 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 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 0.897 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.72 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 136 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 us1000h952 Id of event.
Event Code 1000h952 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000h952, A comma-separated list of event ids that are associated to an event.

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