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Light earthquake: M4.5 quake has struck near Nemuro in Japan

Earthquake location 43.1775S, 145.1986WA light earthquake magnitude 4.5 (ml/mb) strikes 34 kilometers (21 miles) from Nemuro in Japan on Saturday. Exact location, longitude 145.1986° East, latitude 43.1775° North, depth = 104.07 km. The 4.5-magnitude earthquake was detected at 23:34:41 / 11:34 pm (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Id of earthquake: us1000by65. Event ids that are associated: us1000by65. The earthquake occurred at a depth of 104.07 km (65 miles) below the earth’s surface. Exact time and date of earthquake 30/12/17 / 2017-12-30 14:34:41 / December 30, 2017 @ 2:34 pm UTC/GMT.

Country/countries that might be effected, Japan (c. 127 288 000 pop). Closest city/cities/towns to epicentrum/hypocenter was Kushiro, Shibetsu, Nemuro (min 5000 pop). The epicenter was 71 km (44 miles) from Kushiro (c. 183 600 pop), 35 km (21 miles) from Nemuro (c. 31 200 pop), 54 km (33 miles) from Shibetsu (c. 21 700 pop).

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

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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: 34 km WSW of Nemuro, Japan.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude 145.1986° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 43.1775° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 104.07 km Depth of the event in kilometers.
Place 34km WSW 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 2017-12-30 14:34:41 Time when the event occurred. UTC/GMT
Updated 2018-01-28 18:01:51 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 312 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 1.903 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.73 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 145 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 us1000by65 Id of event.
Event Code 1000by65 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000by65, A comma-separated list of event ids that are associated to an event.

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