Moderate earthquake, 5.5 mag strikes near Nishinoomote in Japan

A moderate earthquake with magnitude 5.5 (ml/mb) was reported 103 kilometers (64 miles) from Nishinoomote in Japan on Wednesday. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of event, depth 10 km, 132.0681° East, 30.6252° North. The temblor was detected at 22:40:54 / 10:40 pm (local time epicenter). The earthquake was roughly at a depth of 10 km (6 miles). All ids that are associated to the event: us1000btna. Unique identifier: us1000btna. Global date and time of event UTC/GMT: 20/12/17 / 2017-12-20 13:40:54 / December 20, 2017 @ 1:40 pm.

Epicenter of the event was 103 km (64 miles) from Nishinoomote (c. 17 800 pop). Country/countries that might be effected, Japan (c. 127 288 000 pop). Nearest cities/city/villages to epicentrum/hypocenter was Nishinoomote (min 5000 pop).

In the past 24 hours, there have been one, in the last 10 days four, in the past 30 days four and in the last 365 days eighteen earthquakes of magnitude 3.0 or greater that have been detected in the same area. There are an estimated 1320 moderate earthquakes in the world each year. Earthquakes 5.0 to 6.0 may cause light damage to buildings and other structures.

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. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 103 km E of Nishinoomote, Japan. This data comes from the USGS Earthquake Notification Service.

Japan Nishinoomote

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Parameter	Value	Description
Magnitude	5.5 mb	The magnitude for the event.
Longitude	132.0681° East	Decimal degrees longitude. Negative values for western longitudes.
Latitude	30.6252° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	10 km	Depth of the event in kilometers.
Place	103km E of Nishinoomote, Japan	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2017-12-20 13:40:54	Time when the event occurred. UTC/GMT
Updated	2017-12-20 13:59:45	Time when the event was most recently updated. UTC/GMT
Timezone offset	540	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	3.33	The maximum estimated instrumental intensity for the event.
Alert Level	green	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	465	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	2.69	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	1.06 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	42	The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type	mww	The method or algorithm used to calculate the preferred magnitude for the event.
Event Type	earthquake	Type of seismic event.
Event ID	us1000btna	Id of event.
Event Code	1000btna	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us1000btna,	A comma-separated list of event ids that are associated to an event.

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Moderate earthquake, 5.5 mag strikes near Nishinoomote in Japan

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