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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.6 mag has occurred near Inashiki in Japan

Earthquake location 35.9965S, 140.2939WA light earthquake with magnitude 4.6 (ml/mb) was reported 5 kilometers (3 miles) from Inashiki in Japan on Sunday. Exact location of earthquake, longitude 140.2939 East, latitude 35.9965 North, depth = 70.78 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Global date and time of event UTC/GMT: 08/10/17 / 2017-10-08 14:54:25 / October 8, 2017 @ 2:54 pm. All ids that are associated to the event: us1000arn0. Unique identifier: us1000arn0. The 4.6-magnitude earthquake was detected at 23:54:25 / 11:54 pm (local time epicenter). The epicenter of the earthquake was roughly 70.78 km (44 miles) below the earth’s surface.

Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Ōme, Yokosuka, Kiryū. Event epicenter was 64 km (40 miles) from Tokyo (c. 8 336 600 pop), 85 km (53 miles) from Yokohama (c. 3 574 400 pop), 74 km (46 miles) from Kawasaki (c. 1 306 800 pop), 58 km (36 miles) from Saitama (c. 1 193 400 pop), 61 km (38 miles) from Yono (c. 1 077 700 pop), 46 km (29 miles) from Chiba (c. 919 700 pop), 95 km (59 miles) from Hachiōji (c. 579 400 pop). Close country/countries, Japan (c. 127 288 000 pop) (That might be effected).

In the past 24 hours, there have been three, in the last 10 days four, in the past 30 days seven and in the last 365 days eighty-one earthquakes of magnitude 3.0 or greater that has struck near. 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.

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. 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: 5 km NNW of Inashiki, Japan.

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More information

Parameter Value Description
Magnitude 4.6 mb The magnitude for the event.
Longitude 140.2939° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 35.9965° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 70.78 km Depth of the event in kilometers.
Place 5km NNW of Inashiki, Japan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-10-08 14:54:25 Time when the event occurred. UTC/GMT
Updated 2017-10-22 18:37:51 Time when the event was most recently updated. UTC/GMT
Timezone offset 540 Timezone offset from UTC in minutes at the event epicenter.
Felt 1 The total number of felt reports
CDI 2 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 326 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 1.775 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.71 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 us1000arn0 Id of event.
Event Code 1000arn0 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000arn0, A comma-separated list of event ids that are associated to an event.

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