Light earthquake 4.1 mag, 87 km SSE of Katsuura, Japan

A light earthquake with magnitude 4.1 (ml/mb) was detected on Wednesday, 87 kilometers (54 miles) from Katsuura in Japan. Event id: us6000n0a3. Ids that are associated to the earthquake: us6000n0a3. Global date and time of event UTC/GMT: 15/05/24 / 2024-05-15 03:46:36 / May 15, 2024 @ 3:46 am. The temblor was reported at 03:46:36 / 3:46 am (local time epicenter). Exact location, longitude 140.6062° East, latitude 34.3974° North, depth = 75.141 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The earthquake occurred at a depth of 75.141 km (47 miles).

Nearby country/countries that might be effected, Japan (c. 127 288 000 pop). Event epicenter was 90 km (56 miles) from Kawaguchi (c. 29 100 pop), 87 km (54 miles) from Katsuura (c. 22 300 pop). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Kawaguchi, Katsuura.

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 one earthquakes of magnitude 3.0 or greater that have been detected 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. 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: 87 km SSE of Katsuura, Japan.

More information

Parameter	Value	Description
Magnitude	4.1 mb	The magnitude for the event.
Longitude	140.6062° East	Decimal degrees longitude. Negative values for western longitudes.
Latitude	34.3974° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	75.141 km	Depth of the event in kilometers.
Place	87 km SSE of Katsuura, Japan	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2024-05-15 03:46:36	Time when the event occurred. UTC/GMT
Updated	2024-05-22 23:29:23	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	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	15	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	1.439	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.53 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	us6000n0a3	Id of event.
Event Code	6000n0a3	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us6000n0a3,	A comma-separated list of event ids that are associated to an event.

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Light earthquake 4.1 mag, 87 km SSE of Katsuura, Japan

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