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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.1 mag was detected near Katsuura in Japan


Earthquake location 34.033S, 141.8261WA light earthquake magnitude 4.1 (ml/mb) has occurred on Monday, 185 km SE of Katsuura, Japan (115 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The earthquake occurred at a depth of 10 km (6 miles). The temblor was picked up at 09:49:48 / 9:49 am (local time epicenter). Exact time and date of event in UTC/GMT: 24/12/18 / 2018-12-24 00:49:48 / December 24, 2018 @ 12:49 am. Id of earthquake: us2000j2zk. Event ids that are associated: us2000j2zk. Exact location, longitude 141.8261° East, latitude 34.033° North, depth = 10 km.

In the past 24 hours, there have been nine, in the last 10 days nine, in the past 30 days nine and in the last 365 days fifteen earthquakes of magnitude 3.0 or greater that has occurred nearby. 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.

Did you feel anything?

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: 185 km SE of Katsuura, Japan.

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More information

Parameter Value Description
Magnitude 4.1 mb The magnitude for the event.
Longitude 141.8261° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 34.033° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 185km SE 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 2018-12-24 00:49:48 Time when the event occurred. UTC/GMT
Updated 2019-01-12 05:01:22 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 259 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 1.913 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.74 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 156 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 us2000j2zk Id of event.
Event Code 2000j2zk An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000j2zk, A comma-separated list of event ids that are associated to an event.

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