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Light World Earthquakes Magnitude 4-4.9

Light earthquake: M4.3 quake has struck near Iwo Jima in Japan

Earthquake location 22.9459S, 142.8504WA light earthquake magnitude 4.3 (ml/mb) has occurred on Saturday, 255 km SE of Iwo Jima, Japan (158 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Event ids that are associated to the earthquake: us60006r8q. Id of event: us60006r8q. The epicenter of the earthquake was roughly 116.66 km (72 miles) below the earth’s surface. The 4.3-magnitude earthquake was detected at 11:52:46 / 11:52 am (local time epicenter). Exact location, longitude 142.8504° East, latitude 22.9459° North, depth = 116.66 km. Date and time of earthquake in UTC/GMT: 07/12/19 / 2019-12-07 01:52:46 / December 7, 2019 @ 1:52 am.

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 twenty-one earthquakes of magnitude 3.0 or greater that was reported nearby. There are an estimated 13,000 light quakes in the world each year.

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. 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: 255 km SE of Iwo Jima, Japan.

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More information

Parameter Value Description
Magnitude 4.3 mb The magnitude for the event.
Longitude 142.8504° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 22.9459° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 116.66 km Depth of the event in kilometers.
Place 255km SE 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 2019-12-07 01:52:46 Time when the event occurred. UTC/GMT
Updated 2019-12-14 00:51:32 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 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 4.175 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.38 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 154 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 us60006r8q Id of event.
Event Code 60006r8q An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us60006r8q, A comma-separated list of event ids that are associated to an event.

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