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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.5 mag has occurred near Shikoku, Japan

Earthquake location 33.8658S, 132.0971WA light earthquake magnitude 4.5 (ml/mb) has struck on Tuesday, Shikoku, Japan kilometers (0 miles) from Shikoku, Japan. The earthquake occurred at a depth of 58.11 km (36 miles) below the earth’s surface. Unique identifier: us2000a9fw. Ids that are associated to the event: us2000a9fw. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact time and date of event in UTC/GMT: 15/08/17 / 2017-08-15 19:38:56 / August 15, 2017 @ 7:38 pm. Exact location of earthquake, longitude 132.0971 East, latitude 33.8658 North, depth = 58.11 km. The temblor was reported at 19:38:56 / 7:38 pm (local time epicenter).

Nearby country/countries, Japan (c. 127 288 000 pop) (That might be effected). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Buzen, Masuda, Takehara. Event epicenter was 68 km (42 miles) from Hiroshima-shi (c. 1 143 800 pop), 83 km (52 miles) from Ōita (c. 448 900 pop), 62 km (38 miles) from Matsuyama (c. 443 300 pop), 59 km (37 miles) from Kure (c. 196 600 pop), 79 km (49 miles) from Ube (c. 173 700 pop), 68 km (42 miles) from Yamaguchi-shi (c. 145 500 pop), 86 km (53 miles) from Beppu (c. 125 100 pop).

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. There are an estimated 13,000 light quakes 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 two earthquakes of magnitude 3.0 or greater that was reported nearby.

How would you describe the shaking?

Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home 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: Shikoku, Japan.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude 132.0971° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 33.8658° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 58.11 km Depth of the event in kilometers.
Place Shikoku, Japan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-08-15 19:38:56 Time when the event occurred. UTC/GMT
Updated 2017-09-05 15:46:02 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 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 1.259 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.29 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 76 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 us2000a9fw Id of event.
Event Code 2000a9fw An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000a9fw, A comma-separated list of event ids that are associated to an event.

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