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Light earthquake, 4.2 mag strikes near Hachijo-jima in Japan

Posted by admin on September 14, 2015 0 Comments

Earthquake location 31.6836S, 138.2018WA light earthquake with magnitude 4.2 (ml/mb) was detected on Tuesday, 216 km SW of Hachijo-jima, Japan (134 miles). Exact time and date of earthquake 14/09/15 / 2015-09-14 20:52:58 / September 14, 2015 @ 8:52 pm UTC/GMT. Exact location of event, longitude 138.2018 East, latitude 31.6836 North, depth = 379.43 km. The epicenter was at a depth of 379.43 km (236 miles). Unique identifier: us20003jga. Ids that are associated to the event: us20003jga. The 4.2-magnitude earthquake was detected at 05:52:58 / 5:52 am (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days one and in the last 365 days five 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. There are an estimated 13,000 light quakes in the world each year.

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. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 216 km SW of Hachijo-jima, Japan. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.2 mb The magnitude for the event.
Longitude 138.2018° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 31.6836° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 379.43 km Depth of the event in kilometers.
Place 216km SW 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 2015-09-14 20:52:58 Time when the event occurred. UTC/GMT
Updated 2015-09-14 22:07:19 Time when the event was most recently updated. UTC/GMT
Timezone offset 540 Timezone offset from UTC in minutes at the event epicenter.
Felt 0 The total number of felt reports
CDI 1 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 271 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 1.974 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.87 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 91 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 us20003jga Id of event.
Event Code 20003jga An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us20003jga, A comma-separated list of event ids that are associated to an event.

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