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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.3 mag was detected near Katsuura in Japan

Posted by admin on February 20, 2021 0 Comments

Earthquake location 33.3911S, 141.0188WA light earthquake magnitude 4.3 (ml/mb) has struck on Saturday, 205 km SSE of Katsuura, Japan (127 miles). The earthquake occurred at a depth of 35 km (22 miles) below the earth’s surface. Exact location, longitude 141.0188° East, latitude 33.3911° North, depth = 35 km. The temblor was reported at 09:20:29 / 9:20 am (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Date and time of earthquake in UTC/GMT: 23/01/21 / 2021-01-23 09:20:29 / January 23, 2021 @ 9:20 am. Unique identifier: us6000dd0j. Ids that are associated to the event: us6000dd0j.

In the past 24 hours, there have been two, in the last 10 days two, in the past 30 days seven and in the last 365 days thirty-five earthquakes of magnitude 3.0 or greater that have been detected nearby. Each year there are an estimated 13,000 light quakes in the world. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

How would you describe the shaking?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity and damage at your home, city 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: 205 km SSE of Katsuura, Japan.

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More information

Parameter Value Description
Magnitude 4.3 mb The magnitude for the event.
Longitude 141.0188° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 33.3911° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 35 km Depth of the event in kilometers.
Place 205 km SSE of Katsuura, Japan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2021-01-23 09:20:29 Time when the event occurred. UTC/GMT
Updated 2021-02-20 09:22:01 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 1.046 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.5 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 85 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 us6000dd0j Id of event.
Event Code 6000dd0j An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000dd0j, A comma-separated list of event ids that are associated to an event.

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