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Light World Earthquakes Magnitude 4-4.9

Light earthquake: M4.1 quake has struck near Miyako in Japan

Earthquake location 39.5248S, 142.5628WA light earthquake with magnitude 4.1 (ml/mb) was detected on Friday, 53 kilometers (33 miles) from Miyako in Japan. Exact location of earthquake, 142.5628° East, 39.5248° North, depth 51.93 km. Unique identifier: us10004b9l. Ids that are associated to the event: us10004b9l. 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 51.93 km (32 miles). The temblor was picked up at 16:54:24 / 4:54 pm (local time epicenter). Exact time and date of earthquake 25/12/15 / 2015-12-25 06:54:24 / December 25, 2015 @ 6:54 am UTC/GMT.

Nearest cities/city/towns to hypocenter/epicentrum was Tōno, Ōfunato, Kamaishi (min 5000 pop). Earthquake epicenter was 55 km (34 miles) from Miyako (c. 51 700 pop), 66 km (41 miles) from Kamaishi (c. 43 100 pop), 89 km (55 miles) from Ōfunato (c. 35 400 pop), 91 km (57 miles) from Tōno (c. 26 800 pop), 53 km (33 miles) from Yamada (c. 20 100 pop), 60 km (37 miles) from Ōtsuchi (c. 16 500 pop). Country/countries that might be effected, Japan (c. 127 288 000 pop).

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. In the past 24 hours, there have been two, in the last 10 days three, in the past 30 days six and in the last 365 days one hundred and ten earthquakes of magnitude 3.0 or greater that has occurred nearby. Each year there are an estimated 13,000 light earthquakes in the world.

Questions or comments?

Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home and country. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 53 km ESE of Miyako, Japan. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.1 mb The magnitude for the event.
Longitude 142.5628° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 39.5248° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 51.93 km Depth of the event in kilometers.
Place 53km ESE 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 2015-12-25 06:54:24 Time when the event occurred. UTC/GMT
Updated 2016-01-10 11:08:18 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 259 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 1.919 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.81 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 135 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 us10004b9l Id of event.
Event Code 10004b9l An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us10004b9l, A comma-separated list of event ids that are associated to an event.

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