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

A light earthquake with magnitude 4 (ml/mb) was detected on Friday, 124 km ENE of Iwo Jima, Japan (77 miles). Unique identifier: us1000jgkn. Ids that are associated to the event: us1000jgkn. Exact time and date of event in UTC/GMT: 07/03/19 / 2019-03-07 21:39:52 / March 7, 2019 @ 9:39 pm. The temblor was reported at 06:39:52 / 6:39 am (local time epicenter). The earthquake occurred at a depth of 250.39 km (156 miles) below the earth’s surface. Exact location of event, depth 250.39 km, 142.4785° East, 25.2106° North. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. In the past 24 hours, there have been two, in the last 10 days two, in the past 30 days five and in the last 365 days nine earthquakes of magnitude 3.0 or greater that has occurred nearby. There are an estimated 13,000 light quakes in the world each year.

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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: 124 km ENE of Iwo Jima, Japan.

Iwo Jima Japan

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Parameter	Value	Description
Magnitude	4 mb	The magnitude for the event.
Longitude	142.4785° East	Decimal degrees longitude. Negative values for western longitudes.
Latitude	25.2106° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	250.39 km	Depth of the event in kilometers.
Place	124km ENE 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	2019-03-07 21:39:52	Time when the event occurred. UTC/GMT
Updated	2019-03-16 21:17:33	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	246	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	1.895	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.84 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	147	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	us1000jgkn	Id of event.
Event Code	1000jgkn	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us1000jgkn,	A comma-separated list of event ids that are associated to an event.

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

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