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Earthquake breaking news, Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.9 mag was detected near Iiyama in Japan

Earthquake location 36.9385S, 138.5997WA light earthquake magnitude 4.9 (ml/mb) has struck on Friday, 22 kilometers (14 miles) from Iiyama in Japan. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Unique identifier: us1000ebxl. Ids that are associated to the event: us1000ebxl. Exact location, longitude 138.5997° East, latitude 36.9385° North, depth = 10 km. The temblor was picked up at 21:13:42 / 9:13 pm (local time epicenter). Exact time and date of earthquake 25/05/18 / 2018-05-25 12:13:42 / May 25, 2018 @ 12:13 pm UTC/GMT. The earthquake was roughly at a depth of 10 km (6 miles).

Earthquake epicenter was 49 km (30 miles) from Nagano-shi (c. 360 200 pop), 73 km (46 miles) from Maebashi-shi (c. 282 700 pop), 77 km (48 miles) from Takasaki (c. 240 900 pop), 97 km (60 miles) from Matsumoto (c. 210 700 pop), 40 km (25 miles) from Jōetsu (c. 204 100 pop), 61 km (38 miles) from Nagaoka (c. 195 300 pop), 101 km (63 miles) from Ashikaga (c. 159 700 pop). Close 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 Fukayachō, Ashikaga, Gosen.

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. In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days two and in the last 365 days five earthquakes of magnitude 3.0 or greater that has occurred nearby.

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. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 22 km ENE of Iiyama, Japan. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.9 mb The magnitude for the event.
Longitude 138.5997° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 36.9385° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 22km ENE of Iiyama, Japan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-05-25 12:13:42 Time when the event occurred. UTC/GMT
Updated 2018-05-25 12:45:01 Time when the event was most recently updated. UTC/GMT
Timezone offset 540 Timezone offset from UTC in minutes at the event epicenter.
Felt 11 The total number of felt reports
CDI 3.4 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 373 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 0.504 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.97 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 100 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 us1000ebxl Id of event.
Event Code 1000ebxl An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000ebxl, A comma-separated list of event ids that are associated to an event.

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