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Light earthquake, 4.7 mag has occurred near Hachijo-jima in Japan

Posted by admin on April 2, 2018 0 Comments

Earthquake location 31.6621S, 140.9661WA light earthquake magnitude 4.7 (ml/mb) has occurred on Monday, 192 km SE of Hachijo-jima, Japan (119 miles). The earthquake was roughly at a depth of 45.02 km (28 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The temblor was reported at 13:40:43 / 1:40 pm (local time epicenter). Id of earthquake: us1000dcbj. Event ids that are associated: us1000dcbj. Exact location of event, longitude 140.9661 East, latitude 31.6621 North, depth = 45.02 km. Exact time and date of earthquake 02/04/18 / 2018-04-02 04:40:43 / April 2, 2018 @ 4:40 am UTC/GMT.

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

Questions or comments?

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 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: 192 km SE of Hachijo-jima, Japan.

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More information

Parameter Value Description
Magnitude 4.7 mb The magnitude for the event.
Longitude 140.9661° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 31.6621° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 45.02 km Depth of the event in kilometers.
Place 192km SE of Hachijo-jima, Japan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-04-02 04:40:43 Time when the event occurred. UTC/GMT
Updated 2018-04-02 05:03:05 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 340 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 1.746 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.76 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 103 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 us1000dcbj Id of event.
Event Code 1000dcbj An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000dcbj, A comma-separated list of event ids that are associated to an event.

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