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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.3 mag strikes near Katsuura in Japan


Earthquake location 34.4453S, 141.6937WA light earthquake magnitude 4.3 (ml/mb) has occurred on Saturday, 148 km ESE of Katsuura, Japan (92 miles). The 4.3-magnitude earthquake has occurred at 08:56:45 / 8:56 am (local time epicenter). Exact time and date of event in UTC/GMT: 09/09/16 / 2016-09-09 23:56:45 / September 9, 2016 @ 11:56 pm. Exact location of earthquake, longitude 141.6937 East, latitude 34.4453 North, depth = 37.02 km. The epicenter was at a depth of 37.02 km (23 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Event ids that are associated to the earthquake: us10006nnl. Id of event: us10006nnl.

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

Did you feel it?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity 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: 148 km ESE of Katsuura, Japan.

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More information

Parameter Value Description
Magnitude 4.3 mb The magnitude for the event.
Longitude 141.6937° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 34.4453° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 37.02 km Depth of the event in kilometers.
Place 148km ESE 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 2016-09-09 23:56:45 Time when the event occurred. UTC/GMT
Updated 2016-10-01 22:52:40 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 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 2.052 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.82 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 134 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 us10006nnl Id of event.
Event Code 10006nnl An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us10006nnl, A comma-separated list of event ids that are associated to an event.

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