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Light earthquake: M4.3 quake has struck near Iwaki in Japan


Earthquake location 36.8841S, 141.9049WA light earthquake magnitude 4.3 (ml/mb) strikes 92 kilometers (57 miles) from Iwaki in Japan on Sunday. The 4.3-magnitude earthquake has occurred at 06:23:47 / 6:23 am (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The epicenter was at a depth of 43.47 km (27 miles). Id of earthquake: us10007mjs. Event ids that are associated: us10007mjs. Exact location of event, longitude 141.9049 East, latitude 36.8841 North, depth = 43.47 km. Date and time of earthquake in UTC/GMT: 24/12/16 / 2016-12-24 21:23:47 / December 24, 2016 @ 9:23 pm.

Epicenter of the earthquake was 93 km (58 miles) from Iwaki (c. 357 300 pop). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Iwaki. 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 five, in the past 30 days eighteen and in the last 365 days one hundred and thirty-one earthquakes of magnitude 3.0 or greater that has struck near. 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 the quake?

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. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 92 km E of Iwaki, Japan. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.3 mb The magnitude for the event.
Longitude 141.9049° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 36.8841° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 43.47 km Depth of the event in kilometers.
Place 92km E of Iwaki, Japan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2016-12-24 21:23:47 Time when the event occurred. UTC/GMT
Updated 2016-12-24 21:43:46 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 1.325 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.45 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 178 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 us10007mjs Id of event.
Event Code 10007mjs An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us10007mjs, A comma-separated list of event ids that are associated to an event.

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