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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.4 mag has occurred near Iwo Jima in Japan

Earthquake location 22.6041S, 142.8495WA light earthquake magnitude 4.4 (ml/mb) has struck on Wednesday, 286 km SSE of Iwo Jima, Japan (178 miles). Exact time and date of event in UTC/GMT: 30/03/16 / 2016-03-30 13:36:42 / March 30, 2016 @ 1:36 pm. Event ids that are associated to the earthquake: us20005fls. Id of event: us20005fls. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The epicenter of the earthquake was roughly 62.71 km (39 miles) below the earth’s surface. The 4.4-magnitude earthquake was detected at 23:36:42 / 11:36 pm (local time epicenter). Exact location of event, depth 62.71 km, 142.8495° East, 22.6041° North.

In the past 24 hours, there have been one, in the last 10 days three, in the past 30 days four and in the last 365 days thirty 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. Each year there are an estimated 13,000 light quakes in the world.

Questions or comments?

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. 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: 286 km SSE of Iwo Jima, Japan.

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More information

Parameter Value Description
Magnitude 4.4 mb The magnitude for the event.
Longitude 142.8495° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 22.6041° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 62.71 km Depth of the event in kilometers.
Place 286km SSE of Iwo 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 2016-03-30 13:36:42 Time when the event occurred. UTC/GMT
Updated 2016-04-24 05:39:04 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 4.512 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.36 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 us20005fls Id of event.
Event Code 20005fls An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us20005fls, A comma-separated list of event ids that are associated to an event.

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