Light earthquake, 4 mag strikes near Izu Islands, Japan region

A light earthquake magnitude 4 (ml/mb) has occurred on Tuesday, Izu Islands, Japan region (0 miles). Id of earthquake: us7000cn1k. Event ids that are associated: us7000cn1k. Exact time and date of event in UTC/GMT: 01/12/20 / 2020-12-01 21:06:59 / December 1, 2020 @ 9:06 pm. Exact location, longitude 139.3147° East, latitude 29.794° North, depth = 400.94 km. The epicenter of the earthquake was roughly 400.94 km (249 miles) below the earth’s surface. The temblor was reported at 21:06:59 / 9:06 pm (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

In the past 24 hours, there have been one, in the last 10 days two, in the past 30 days two and in the last 365 days nineteen earthquakes of magnitude 3.0 or greater that has struck near. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. Every 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: Izu Islands, Japan region.

Izu Islands Japan region

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Parameter	Value	Description
Magnitude	4 mb	The magnitude for the event.
Longitude	139.3147° East	Decimal degrees longitude. Negative values for western longitudes.
Latitude	29.794° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	400.94 km	Depth of the event in kilometers.
Place	Izu Islands, Japan region	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2020-12-01 21:06:59	Time when the event occurred. UTC/GMT
Updated	2020-12-07 23:07:44	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	246	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	3.338	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	1.25 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	93	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	us7000cn1k	Id of event.
Event Code	7000cn1k	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us7000cn1k,	A comma-separated list of event ids that are associated to an event.

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Light earthquake, 4 mag strikes near Izu Islands, Japan region

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