Light earthquake, 4.1 mag strikes near Iwanai in Japan

A light earthquake with magnitude 4.1 (ml/mb) was reported 140 km WNW of Iwanai, Japan (87 miles) on Tuesday. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Event id: us6000acxr. Ids that are associated to the earthquake: us6000acxr. Exact location of event, depth 214.44 km, 138.9415° East, 43.5094° North. Global time and date of event 09/06/20 / 2020-06-09 15:12:28 / June 9, 2020 @ 3:12 pm UTC/GMT. The 4.1-magnitude earthquake was detected at 15:12:28 / 3:12 pm (local time epicenter). The epicenter was at a depth of 214.44 km (133 miles).

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

Questions or comments?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage at your home, city 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: 140 km WNW of Iwanai, Japan.

Iwanai Japan

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Parameter	Value	Description
Magnitude	4.1 mb	The magnitude for the event.
Longitude	138.9415° East	Decimal degrees longitude. Negative values for western longitudes.
Latitude	43.5094° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	214.44 km	Depth of the event in kilometers.
Place	140 km WNW of Iwanai, Japan	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2020-06-09 15:12:28	Time when the event occurred. UTC/GMT
Updated	2020-06-16 19:52:40	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		The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	2.712	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.36 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	110	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	us6000acxr	Id of event.
Event Code	6000acxr	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us6000acxr,	A comma-separated list of event ids that are associated to an event.

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Light earthquake, 4.1 mag strikes near Iwanai in Japan

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