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


Earthquake location 39.6863S, 141.709WA light earthquake magnitude 4.1 (ml/mb) has occurred on Thursday, 21 kilometers (13 miles) from Miyako in Japan. The earthquake was roughly at a depth of 58.01 km (36 miles). Unique identifier: us10003zui. Ids that are associated to the event: us10003zui. Exact location of event, depth 58.01 km, 141.709° East, 39.6863° North. Exact time and date of earthquake 18/11/15 / 2015-11-18 23:30:07 / November 18, 2015 @ 11:30 pm UTC/GMT. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The 4.1-magnitude earthquake was detected at 08:30:07 / 8:30 am (local time epicenter).

Earthquake epicenter was 48 km (30 miles) from Morioka-shi (c. 295 200 pop), 68 km (42 miles) from Kitakami (c. 93 900 pop), 61 km (38 miles) from Hanamaki (c. 73 100 pop), 79 km (49 miles) from Mizusawa (c. 61 300 pop), 20 km (13 miles) from Miyako (c. 51 700 pop), 48 km (30 miles) from Kamaishi (c. 43 100 pop). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Mizusawa, Ichinohe, Ōfunato. Close 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 three, in the last 10 days five, in the past 30 days eight and in the last 365 days fifty-one earthquakes of magnitude 3.0 or greater that have been detected in the same area. Each year there are an estimated 13,000 light quakes in the world.

Questions or comments?

Did objects rattle, topple over, or fall off shelves? Leave a comment or report about activity, shaking and damage at your home, country and city. This data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 21 km WNW of Miyako, Japan.

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More information

Parameter Value Description
Magnitude 4.1 mb The magnitude for the event.
Longitude 141.709° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 39.6863° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 58.01 km Depth of the event in kilometers.
Place 21km WNW 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 2015-11-18 23:30:07 Time when the event occurred. UTC/GMT
Updated 2015-12-12 22:30:45 Time when the event was most recently updated. UTC/GMT
Timezone offset 540 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 1.356 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.49 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 154 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 us10003zui Id of event.
Event Code 10003zui An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us10003zui, A comma-separated list of event ids that are associated to an event.

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