Light earthquake, 4.2 mag was detected near Katsuura in Japan

A light earthquake magnitude 4.2 (ml/mb) has occurred on Monday, 109 km SSE of Katsuura, Japan (68 miles). The earthquake occurred at a depth of 61.6 km (38 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Id of earthquake: us1000425z. Event ids that are associated: us1000425z. Exact time and date of event in UTC/GMT: 30/11/15 / 2015-11-30 12:50:05 / November 30, 2015 @ 12:50 pm. Exact location of earthquake, 140.5903° East, 34.1727° North, depth 61.6 km. The 4.2-magnitude earthquake was detected at 21:50:05 / 9:50 pm (local time epicenter).

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

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. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 109 km SSE of Katsuura, Japan. This data comes from the USGS Earthquake Notification Service.

Japan Katsuura

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Parameter	Value	Description
Magnitude	4.2 mb	The magnitude for the event.
Longitude	140.5903° East	Decimal degrees longitude. Negative values for western longitudes.
Latitude	34.1727° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	61.6 km	Depth of the event in kilometers.
Place	109km 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	2015-11-30 12:50:05	Time when the event occurred. UTC/GMT
Updated	2015-12-14 07:39:41	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	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	1.237	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.73 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	141	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	us1000425z	Id of event.
Event Code	1000425z	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us1000425z,	A comma-separated list of event ids that are associated to an event.

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Light earthquake, 4.2 mag was detected near Katsuura in Japan

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