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

A light earthquake magnitude 4.2 (ml/mb) has struck on Thursday, 114 km ENE of Hirara, Japan (71 miles). The temblor was reported at 09:59:01 / 9:59 am (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The earthquake was roughly at a depth of 50.715 km (32 miles). All ids that are associated to the event: us6000mtrt. Unique identifier: us6000mtrt. Exact location, longitude 126.2642° East, latitude 25.3534° North, depth = 50.715 km. Date and time of earthquake in UTC/GMT: 18/04/24 / 2024-04-18 09:59:01 / April 18, 2024 @ 9:59 am.

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

Questions or comments?

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 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: 114 km ENE of Hirara, Japan.

Hirara Japan

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Parameter	Value	Description
Magnitude	4.2 mb	The magnitude for the event.
Longitude	126.2642° East	Decimal degrees longitude. Negative values for western longitudes.
Latitude	25.3534° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	50.715 km	Depth of the event in kilometers.
Place	114 km ENE of Hirara, Japan	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2024-04-18 09:59:01	Time when the event occurred. UTC/GMT
Updated	2024-05-13 10:01:12	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	35	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	2.083	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	1.28 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	86	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	us6000mtrt	Id of event.
Event Code	6000mtrt	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us6000mtrt,	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 Hirara in Japan

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