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Light earthquake, 4.3 mag has occurred near Chichi-shima in Japan

Posted by admin on September 23, 2015 0 Comments

Earthquake location 27.9293S, 139.6035WA light earthquake with magnitude 4.3 (ml/mb) was detected on Wednesday, 274 km WNW of Chichi-shima, Japan (170 miles). The epicenter of the earthquake was roughly 513.23 km (319 miles) below the earth’s surface. Id of earthquake: us20003nb5. Event ids that are associated: us20003nb5. Exact time and date of earthquake 23/09/15 / 2015-09-23 13:32:00 / September 23, 2015 @ 1:32 pm UTC/GMT. The 4.3-magnitude earthquake has occurred at 22:32:00 / 10:32 pm (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of event, depth 513.23 km, 139.6035° East, 27.9293° North.

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 one, in the past 30 days two and in the last 365 days twenty-five earthquakes of magnitude 3.0 or greater that has struck near. Each year there are an estimated 13,000 light quakes in the world.

Questions or comments?

Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home 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: 274 km WNW of Chichi-shima, Japan.

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More information

Parameter Value Description
Magnitude 4.3 mb The magnitude for the event.
Longitude 139.6035° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 27.9293° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 513.23 km Depth of the event in kilometers.
Place 274km WNW of Chichi-shima, Japan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2015-09-23 13:32:00 Time when the event occurred. UTC/GMT
Updated 2015-09-23 14:57:56 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 284 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 2.438 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.56 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 30 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 us20003nb5 Id of event.
Event Code 20003nb5 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us20003nb5, A comma-separated list of event ids that are associated to an event.

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