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Light earthquake, 4.1 mag was detected near Ohara in Japan

Earthquake location 35.3177S, 140.5681WA light earthquake with magnitude 4.1 (ml/mb) was detected on Wednesday, 18 kilometers (11 miles) from Ohara in Japan. The epicenter of the earthquake was roughly 35.86 km (22 miles) below the earth’s surface. The temblor was detected at 17:13:49 / 5:13 pm (local time epicenter). Exact location of event, longitude 140.5681 East, latitude 35.3177 North, depth = 35.86 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Unique identifier: us20009nxp. Ids that are associated to the event: us20009nxp. Exact time and date of earthquake 21/06/17 / 2017-06-21 08:13:49 / June 21, 2017 @ 8:13 am UTC/GMT.

Epicenter of the earthquake was 89 km (56 miles) from Tokyo (c. 8 336 600 pop), 85 km (53 miles) from Yokohama (c. 3 574 400 pop), 80 km (50 miles) from Kawasaki (c. 1 306 800 pop), 51 km (32 miles) from Chiba (c. 919 700 pop), 67 km (42 miles) from Funabashi (c. 560 700 pop), 80 km (49 miles) from Matsudo (c. 470 300 pop). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Yoshikawa, Hayama, Zushi. Close country/countries, Japan (c. 127 288 000 pop) (That might be effected).

In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days seven and in the last 365 days seventy-four earthquakes of magnitude 3.0 or greater that have been detected in the same area. There are an estimated 13,000 light quakes in the world each year. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

How would you describe the shaking?

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 data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 18 km ENE of Ohara, Japan.

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More information

Parameter Value Description
Magnitude 4.1 mb The magnitude for the event.
Longitude 140.5681° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 35.3177° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 35.86 km Depth of the event in kilometers.
Place 18km ENE of Ohara, Japan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-06-21 08:13:49 Time when the event occurred. UTC/GMT
Updated 2017-06-21 21:18:51 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 2.7 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 2.059 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.57 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 154 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 us20009nxp Id of event.
Event Code 20009nxp An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us20009nxp, A comma-separated list of event ids that are associated to an event.

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