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Light earthquake 4.6 mag, 23 km N of Misawa, Japan


Earthquake location 40.8987S, 141.3748WA light earthquake magnitude 4.6 (ml/mb) strikes 23 kilometers (14 miles) from Misawa in Japan on Monday. The temblor was picked up at 17:15:17 / 5:15 pm (local time epicenter). The earthquake was roughly at a depth of 89.25 km (55 miles). Unique identifier: us1000i122. Ids that are associated to the event: us1000i122. Global date and time of event UTC/GMT: 03/12/18 / 2018-12-03 08:15:17 / December 3, 2018 @ 8:15 am. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of event, longitude 141.3748 East, latitude 40.8987 North, depth = 89.25 km.

Event epicenter was 54 km (34 miles) from Aomori Shi (c. 298 400 pop), 46 km (28 miles) from Hachinohe (c. 239 000 pop), 83 km (52 miles) from Hirosaki (c. 175 000 pop), 45 km (28 miles) from Mutsu (c. 49 200 pop), 79 km (49 miles) from Goshogawara (c. 49 100 pop), 24 km (15 miles) from Misawa (c. 42 800 pop), 72 km (45 miles) from Kuroishi (c. 38 600 pop). Close country/countries that might be effected, Japan (c. 127 288 000 pop). Nearest cities/city/villages to epicentrum/hypocenter was Hanawa, Shimokizukuri, Hirosaki (min 5000 pop).

In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days three and in the last 365 days twenty-six earthquakes of magnitude 3.0 or greater that has struck near. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. There are an estimated 13,000 light earthquakes in the world each year.

Did you feel anything?

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. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 23 km N of Misawa, Japan. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.6 mb The magnitude for the event.
Longitude 141.3748° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 40.8987° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 89.25 km Depth of the event in kilometers.
Place 23km N of Misawa, Japan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-12-03 08:15:17 Time when the event occurred. UTC/GMT
Updated 2018-12-03 08:49:10 Time when the event was most recently updated. UTC/GMT
Timezone offset 540 Timezone offset from UTC in minutes at the event epicenter.
Felt 1 The total number of felt reports
CDI 4.1 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 326 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 0.259 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.88 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 133 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type mwr The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us1000i122 Id of event.
Event Code 1000i122 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000i122, A comma-separated list of event ids that are associated to an event.

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