Light earthquake: M4.2 quake has struck near Ōyama in Japan

A light earthquake magnitude 4.2 (ml/mb) strikes 225 km S of Ōyama, Japan (140 miles) on Monday. Exact location of event, longitude 138.2714 East, latitude 32.5733 North, depth = 325.99 km. 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: us7000d3ny. Id of event: us7000d3ny. The epicenter was at a depth of 325.99 km (203 miles). The temblor was reported at 00:29:29 / 12:29 am (local time epicenter). Exact time and date of earthquake 18/01/21 / 2021-01-18 00:29:29 / January 18, 2021 @ 12:29 am UTC/GMT.

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

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What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 225 km S of Ōyama, Japan. This information comes from the USGS Earthquake Notification Service.

Japan Oyama

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Parameter	Value	Description
Magnitude	4.2 mb	The magnitude for the event.
Longitude	138.2714° East	Decimal degrees longitude. Negative values for western longitudes.
Latitude	32.5733° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	325.99 km	Depth of the event in kilometers.
Place	225 km S of Ōyama, Japan	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2021-01-18 00:29:29	Time when the event occurred. UTC/GMT
Updated	2021-01-29 04:29:07	Time when the event was most recently updated. UTC/GMT
Timezone offset		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	271	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	2.955	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.43 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	123	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	us7000d3ny	Id of event.
Event Code	7000d3ny	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us7000d3ny,	A comma-separated list of event ids that are associated to an event.

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Light earthquake: M4.2 quake has struck near Ōyama in Japan

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