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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.5 mag was detected near Iiyama in Japan

Earthquake location 36.8923S, 138.6341WA light earthquake magnitude 4.5 (ml/mb) has struck on Friday, 24 kilometers (15 miles) from Iiyama in Japan. Exact location of earthquake, longitude 138.6341 East, latitude 36.8923 North, depth = 1.91 km. Event id: us10008hk5. Ids that are associated to the earthquake: us10008hk5. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact time and date of earthquake 14/04/17 / 2017-04-14 14:01:21 / April 14, 2017 @ 2:01 pm UTC/GMT. The earthquake occurred at a depth of 1.91 km (1 miles). The temblor was reported at 23:01:21 / 11:01 pm (local time epicenter).

Epicenter of the event was 48 km (30 miles) from Nagano-shi (c. 360 200 pop), 67 km (42 miles) from Maebashi-shi (c. 282 700 pop), 71 km (44 miles) from Takasaki (c. 240 900 pop), 94 km (59 miles) from Matsumoto (c. 210 700 pop), 45 km (28 miles) from Jōetsu (c. 204 100 pop), 65 km (40 miles) from Nagaoka (c. 195 300 pop), 96 km (59 miles) from Ashikaga (c. 159 700 pop). Nearest cities/city/villages to epicentrum/hypocenter was Fukayachō, Ashikaga, Imaichi (min 5000 pop). Close country/countries that might be effected, Japan (c. 127 288 000 pop).

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. There are an estimated 13,000 light earthquakes in the world each year. 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 eight earthquakes of magnitude 3.0 or greater that has struck near.

Did you feel it?

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: 24 km ENE of Iiyama, Japan. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude 138.6341° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 36.8923° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 1.91 km Depth of the event in kilometers.
Place 24km 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 2017-04-14 14:01:21 Time when the event occurred. UTC/GMT
Updated 2017-04-24 06:37:13 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 312 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 0.489 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.76 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 105 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 us10008hk5 Id of event.
Event Code 10008hk5 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us10008hk5, A comma-separated list of event ids that are associated to an event.

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