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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4 mag strikes near Nemuro in Japan


Earthquake location 42.9785S, 146.5009WA light earthquake with magnitude 4 (ml/mb) was detected on Thursday, 84 kilometers (52 miles) from Nemuro in Japan. The 4-magnitude earthquake has occurred at 02:07:08 / 2:07 am (local time epicenter). Global time and date of event 28/01/21 / 2021-01-28 02:07:08 / January 28, 2021 @ 2:07 am UTC/GMT. All ids that are associated to the event: us6000demz. Unique identifier: us6000demz. Exact location of earthquake, longitude 146.5009 East, latitude 42.9785 North, depth = 35 km. 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 35 km (22 miles) below the earth’s surface.

Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Nemuro. Epicenter of the earthquake was 84 km (52 miles) from Nemuro (c. 31 200 pop). Close country/countries that might be effected, Japan (c. 127 288 000 pop).

In the past 24 hours, there have been two, in the last 10 days two, in the past 30 days three and in the last 365 days nineteen earthquakes of magnitude 3.0 or greater that was reported nearby. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. There are an estimated 13,000 light quakes in the world each year.

Questions or comments?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage at your home, city and country. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 84 km ESE of Nemuro, Japan. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4 mb The magnitude for the event.
Longitude 146.5009° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 42.9785° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 35 km Depth of the event in kilometers.
Place 84 km ESE of Nemuro, Japan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2021-01-28 02:07:08 Time when the event occurred. UTC/GMT
Updated 2021-02-08 03:28:33 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 246 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 2.653 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 130 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 us6000demz Id of event.
Event Code 6000demz An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000demz, A comma-separated list of event ids that are associated to an event.

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