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Earthquake breaking news, Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.1 mag strikes near Itoigawa in Japan

Earthquake location 37.2073S, 137.7881WA light earthquake magnitude 4.1 (ml/mb) strikes 20 kilometers (12 miles) from Itoigawa in Japan on Monday. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of earthquake, longitude 137.7881 East, latitude 37.2073 North, depth = 227.9 km. Exact time and date of event in UTC/GMT: 17/09/18 / 2018-09-17 00:21:05 / September 17, 2018 @ 12:21 am. Unique identifier: us2000hfm0. Ids that are associated to the event: us2000hfm0. The epicenter was at a depth of 227.9 km (142 miles). The temblor was reported at 09:21:05 / 9:21 am (local time epicenter).

The epicenter was 71 km (44 miles) from Nagano-shi (c. 360 200 pop), 77 km (48 miles) from Toyama-shi (c. 325 500 pop), 40 km (25 miles) from Jōetsu (c. 204 100 pop), 85 km (53 miles) from Takaoka (c. 170 100 pop), 70 km (43 miles) from Kashiwazaki (c. 86 200 pop), 82 km (51 miles) from Himi (c. 54 500 pop). Nearby country/countries that might be effected, Japan (c. 127 288 000 pop). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Ojiya, Tōkamachi, Takaoka.

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 five 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. Each year there are an estimated 13,000 light quakes in the world.

Did you feel the quake?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity and damage at your home, city and country. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 20 km NNW of Itoigawa, Japan. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.1 mb The magnitude for the event.
Longitude 137.7881° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 37.2073° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 227.9 km Depth of the event in kilometers.
Place 20km NNW of Itoigawa, Japan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-09-17 00:21:05 Time when the event occurred. UTC/GMT
Updated 2018-09-17 02:13:52 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 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 0.739 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.85 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 66 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 us2000hfm0 Id of event.
Event Code 2000hfm0 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000hfm0, A comma-separated list of event ids that are associated to an event.

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