Light earthquake: M4.1 quake has struck near Oyama in Japan

A light earthquake magnitude 4.1 (ml/mb) strikes 181 km SSW of Oyama, Japan (112 miles) on Monday. The temblor was detected at 05:45:51 / 5:45 am (local time epicenter). Exact time and date of event in UTC/GMT: 24/09/17 / 2017-09-24 20:45:51 / September 24, 2017 @ 8:45 pm. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Unique identifier: us2000au0x. Ids that are associated to the event: us2000au0x. Exact location of event, longitude 137.7689 East, latitude 33.0106 North, depth = 343.06 km. The earthquake occurred at a depth of 343.06 km (213 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 eight earthquakes of magnitude 3.0 or greater that has struck near. Each year there are an estimated 13,000 light earthquakes in the world.

Questions or comments?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity 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: 181 km SSW of Oyama, Japan.

Japan Oyama

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Parameter	Value	Description
Magnitude	4.1 mb	The magnitude for the event.
Longitude	137.7689° East	Decimal degrees longitude. Negative values for western longitudes.
Latitude	33.0106° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	343.06 km	Depth of the event in kilometers.
Place	181km SSW of Oyama, Japan	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2017-09-24 20:45:51	Time when the event occurred. UTC/GMT
Updated	2017-09-24 21:05:48	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	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	1.698	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	1.13 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	98	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	us2000au0x	Id of event.
Event Code	2000au0x	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us2000au0x,	A comma-separated list of event ids that are associated to an event.

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Light earthquake: M4.1 quake has struck near Oyama in Japan

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