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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.4 mag strikes near Chichi-shima in Japan

Posted by admin on November 10, 2017 0 Comments

Earthquake location 27.4925S, 142.9725WA light earthquake with magnitude 4.4 (ml/mb) was reported 87 km ENE of Chichi-shima, Japan (54 miles) on Sunday. Exact location of event, depth 12.53 km, 142.9725° East, 27.4925° North. The epicenter of the earthquake was roughly 12.53 km (8 miles) below the earth’s surface. Id of earthquake: us1000ayn3. Event ids that are associated: us1000ayn3. The 4.4-magnitude earthquake has occurred at 13:54:10 / 1:54 pm (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Global time and date of event 22/10/17 / 2017-10-22 03:54:10 / October 22, 2017 @ 3:54 am UTC/GMT.

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 eight earthquakes of magnitude 3.0 or greater that was reported nearby. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. Each year there are an estimated 13,000 light earthquakes in the world.

Questions or comments?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity and damage at your home, city and country. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 87 km ENE of Chichi-shima, Japan.

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More information

Parameter Value Description
Magnitude 4.4 mb The magnitude for the event.
Longitude 142.9725° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 27.4925° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 12.53 km Depth of the event in kilometers.
Place 87km ENE 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 2017-10-22 03:54:10 Time when the event occurred. UTC/GMT
Updated 2017-11-10 00:50:18 Time when the event was most recently updated. UTC/GMT
Timezone offset 600 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 298 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 0.804 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.78 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 200 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 us1000ayn3 Id of event.
Event Code 1000ayn3 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000ayn3, A comma-separated list of event ids that are associated to an event.

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