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Light World Earthquakes Magnitude 4-4.9

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


Earthquake location 40.1348S, 143.2635WA light earthquake magnitude 4.3 (ml/mb) strikes 125 km ENE of Miyako, Japan (78 miles) on Monday. All ids that are associated to the event: us10003pwf. Unique identifier: us10003pwf. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The temblor was picked up at 10:11:32 / 10:11 am (local time epicenter). Exact time and date of event in UTC/GMT: 12/10/15 / 2015-10-12 00:11:32 / October 12, 2015 @ 12:11 am. The epicenter of the earthquake was roughly 25.04 km (16 miles) below the earth’s surface. Exact location of event, depth 25.04 km, 143.2635° East, 40.1348° North.

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. In the past 24 hours, there have been three, in the last 10 days four, in the past 30 days ten and in the last 365 days ninety-four earthquakes of magnitude 3.0 or greater that has occurred nearby.

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. This information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 125 km ENE of Miyako, Japan.

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More information

Parameter Value Description
Magnitude 4.3 mb The magnitude for the event.
Longitude 143.2635° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 40.1348° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 25.04 km Depth of the event in kilometers.
Place 125km ENE of Miyako, Japan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2015-10-12 00:11:32 Time when the event occurred. UTC/GMT
Updated 2015-11-01 02:37:55 Time when the event was most recently updated. UTC/GMT
Timezone offset 600 Timezone offset from UTC in minutes at the event epicenter.
Felt 0 The total number of felt reports
CDI 1 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 1.88 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.7 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 136 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 us10003pwf Id of event.
Event Code 10003pwf An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us10003pwf, A comma-separated list of event ids that are associated to an event.

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