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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.6 mag has occurred near Kitaibaraki in Japan

Earthquake location 36.3743S, 142.2174WA light earthquake magnitude 4.6 (ml/mb) has occurred on Friday, 138 km ESE of Kitaibaraki, Japan (86 miles). Event ids that are associated to the earthquake: us20008u30. Id of event: us20008u30. The 4.6-magnitude earthquake has occurred at 01:19:16 / 1:19 am (local time epicenter). The epicenter of the earthquake was roughly 30.54 km (19 miles) below the earth’s surface. Exact time and date of event in UTC/GMT: 23/03/17 / 2017-03-23 16:19:16 / March 23, 2017 @ 4:19 pm. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of earthquake, 142.2174° East, 36.3743° North, depth 30.54 km.

In the past 24 hours, there have been two, in the last 10 days three, in the past 30 days five and in the last 365 days fifty-six 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. Each year there are an estimated 13,000 light quakes in the world.

How would you describe the shaking?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking 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: 138 km ESE of Kitaibaraki, Japan.

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More information

Parameter Value Description
Magnitude 4.6 mb The magnitude for the event.
Longitude 142.2174° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 36.3743° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 30.54 km Depth of the event in kilometers.
Place 138km ESE of Kitaibaraki, Japan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-03-23 16:19:16 Time when the event occurred. UTC/GMT
Updated 2017-04-05 16:33:11 Time when the event was most recently updated. UTC/GMT
Timezone offset 540 Timezone offset from UTC in minutes at the event epicenter.
Felt 20 The total number of felt reports
CDI 3.3 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 332 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 1.878 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.7 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 140 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 us20008u30 Id of event.
Event Code 20008u30 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us20008u30, A comma-separated list of event ids that are associated to an event.

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