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Light earthquake: M4.1 quake has struck near Chichi-shima in Japan

Posted by admin on December 22, 2018 0 Comments

Earthquake location 27.6972S, 139.8615WA light earthquake magnitude 4.1 (ml/mb) has struck on Sunday, 242 km WNW of Chichi-shima, Japan (150 miles). The earthquake was roughly at a depth of 464.39 km (289 miles). The temblor was picked up at 16:37:32 / 4:37 pm (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Id of earthquake: us1000hybj. Event ids that are associated: us1000hybj. Exact time and date of earthquake 25/11/18 / 2018-11-25 07:37:32 / November 25, 2018 @ 7:37 am UTC/GMT. Exact location of earthquake, longitude 139.8615 East, latitude 27.6972 North, depth = 464.39 km.

There are an estimated 13,000 light earthquakes in the world each year. 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 one and in the last 365 days nineteen earthquakes of magnitude 3.0 or greater that have been detected in the same area.

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 information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 242 km WNW of Chichi-shima, Japan.

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More information

Parameter Value Description
Magnitude 4.1 mb The magnitude for the event.
Longitude 139.8615° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 27.6972° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 464.39 km Depth of the event in kilometers.
Place 242km 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 2018-11-25 07:37:32 Time when the event occurred. UTC/GMT
Updated 2018-12-22 09:08:55 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 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 2.15 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.61 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 156 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 us1000hybj Id of event.
Event Code 1000hybj An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000hybj, A comma-separated list of event ids that are associated to an event.

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