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Light World Earthquakes Magnitude 4-4.9

Light earthquake: M4.4 quake has struck near Izu Islands, Japan region



Earthquake location 30.9284S, 142.9072WA light earthquake with magnitude 4.4 (ml/mb) was detected on Friday, Izu Islands, Japan region (0 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of earthquake, longitude 142.9072 East, latitude 30.9284 North, depth = 25.42 km. The temblor was reported at 07:15:45 / 7:15 am (local time epicenter). Id of earthquake: us20004usk. Event ids that are associated: us20004usk. Exact time and date of earthquake 21/01/16 / 2016-01-21 21:15:45 / January 21, 2016 @ 9:15 pm UTC/GMT. The earthquake occurred at a depth of 25.42 km (16 miles).

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 sixty-one earthquakes of magnitude 3.0 or greater that have been detected in the same area. Every year there are an estimated 13,000 light earthquakes in the world.

Did you feel the quake?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity 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: Izu Islands, Japan region.

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More information

Parameter Value Description
Magnitude 4.4 mb The magnitude for the event.
Longitude 142.9072° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 30.9284° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 25.42 km Depth of the event in kilometers.
Place Izu Islands, Japan region Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2016-01-21 21:15:45 Time when the event occurred. UTC/GMT
Updated 2016-02-12 00:27:31 Time when the event was most recently updated. UTC/GMT
Timezone offset 600 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 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 3.414 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.6 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 149 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 us20004usk Id of event.
Event Code 20004usk An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us20004usk, A comma-separated list of event ids that are associated to an event.

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