Light earthquake, 4.1 mag strikes near Iwo Jima in Japan

A light earthquake magnitude 4.1 (ml/mb) has occurred on Wednesday, 221 km SSE of Iwo Jima, Japan (137 miles). Event id: us20004y50. Ids that are associated to the earthquake: us20004y50. The earthquake occurred at a depth of 183.4 km (114 miles). Exact time and date of event in UTC/GMT: 03/02/16 / 2016-02-03 01:11:22 / February 3, 2016 @ 1:11 am. The temblor was reported at 10:11:22 / 10:11 am (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of event, depth 183.4 km, 142.4576° East, 23.0707° North.

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

Did you feel it?

Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home and country. This data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 221 km SSE of Iwo Jima, Japan.

Iwo Jima Japan

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Parameter	Value	Description
Magnitude	4.1 mb	The magnitude for the event.
Longitude	142.4576° East	Decimal degrees longitude. Negative values for western longitudes.
Latitude	23.0707° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	183.4 km	Depth of the event in kilometers.
Place	221km 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	2016-02-03 01:11:22	Time when the event occurred. UTC/GMT
Updated	2016-02-18 04:01:03	Time when the event was most recently updated. UTC/GMT
Timezone offset	540	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	259	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	4.015	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	178	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	us20004y50	Id of event.
Event Code	20004y50	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us20004y50,	A comma-separated list of event ids that are associated to an event.

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Light earthquake, 4.1 mag strikes near Iwo Jima in Japan

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