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Light World Earthquakes Magnitude 4-4.9

Light earthquake 4.5 mag, 6 km ENE of Asahi, Japan

Earthquake location 35.7383S, 140.7146WA light earthquake with magnitude 4.5 (ml/mb) was reported 6 kilometers (4 miles) from Asahi in Japan on Wednesday. The epicenter of the earthquake was roughly 47.13 km (29 miles) below the earth’s surface. Exact time and date of earthquake 20/11/18 / 2018-11-20 22:28:55 / November 20, 2018 @ 10:28 pm UTC/GMT. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The 4.5-magnitude earthquake was detected at 07:28:55 / 7:28 am (local time epicenter). Exact location of earthquake, 140.7146° East, 35.7383° North, depth 47.13 km. Event id: us1000hx4c. Ids that are associated to the earthquake: us1000hx4c.

Close country/countries that might be effected, Japan (c. 127 288 000 pop). Earthquake epicenter was 93 km (57 miles) from Tokyo (c. 8 336 600 pop), 93 km (58 miles) from Kawasaki (c. 1 306 800 pop), 55 km (34 miles) from Chiba (c. 919 700 pop), 66 km (41 miles) from Funabashi (c. 560 700 pop), 74 km (46 miles) from Matsudo (c. 470 300 pop), 91 km (56 miles) from Kawaguchi (c. 468 600 pop), 68 km (43 miles) from Kashiwa (c. 340 200 pop). Nearest cities/city/towns to hypocenter/epicentrum was Satte, Hitachi, Iwatsuki (min 5000 pop).

In the past 24 hours, there have been three, in the last 10 days three, in the past 30 days four and in the last 365 days eighty-eight 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.

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. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 6 km ENE of Asahi, Japan.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude 140.7146° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 35.7383° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 47.13 km Depth of the event in kilometers.
Place 6km ENE of Asahi, Japan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-11-20 22:28:55 Time when the event occurred. UTC/GMT
Updated 2018-12-01 04:30:09 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 2.127 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.93 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 151 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 us1000hx4c Id of event.
Event Code 1000hx4c An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000hx4c, A comma-separated list of event ids that are associated to an event.

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