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Light World Earthquakes Magnitude 4-4.9

Light earthquake: M4.3 quake has struck near Narita in Japan


Earthquake location 35.8606S, 140.3486WA light earthquake with magnitude 4.3 (ml/mb) was reported 9 kilometers (6 miles) from Narita 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 event, longitude 140.3486 East, latitude 35.8606 North, depth = 75.65 km. Global date and time of event UTC/GMT: 30/11/20 / 2020-11-30 01:34:06 / November 30, 2020 @ 1:34 am. The earthquake was roughly at a depth of 75.65 km (47 miles). The temblor was reported at 01:34:06 / 1:34 am (local time epicenter). Event ids that are associated to the earthquake: us7000cmkx. Id of event: us7000cmkx.

Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Hannō, Minami-rinkan, Kumagaya. Event epicenter was 62 km (39 miles) from Tokyo (c. 8 336 600 pop), 79 km (49 miles) from Yokohama (c. 3 574 400 pop), 68 km (43 miles) from Kawasaki (c. 1 306 800 pop), 63 km (39 miles) from Saitama (c. 1 193 400 pop), 64 km (40 miles) from Yono (c. 1 077 700 pop), 35 km (22 miles) from Chiba (c. 919 700 pop). Country/countries that might be effected, Japan (c. 127 288 000 pop).

In the past 24 hours, there have been one, in the last 10 days five, in the past 30 days five and in the last 365 days seventy-one earthquakes of magnitude 3.0 or greater that have been detected in the same area. There are an estimated 13,000 light earthquakes in the world each year. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

How would you describe the shaking?

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. 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: 9 km NNE of Narita, Japan.

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More information

Parameter Value Description
Magnitude 4.3 mb The magnitude for the event.
Longitude 140.3486° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 35.8606° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 75.65 km Depth of the event in kilometers.
Place 9 km NNE of Narita, Japan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2020-11-30 01:34:06 Time when the event occurred. UTC/GMT
Updated 2020-12-04 00:45:13 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 284 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 1.859 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.61 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 150 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 us7000cmkx Id of event.
Event Code 7000cmkx An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us7000cmkx, A comma-separated list of event ids that are associated to an event.

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