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Light earthquake: M4.2 quake has struck near Misawa in Japan


Earthquake location 40.9429S, 141.6718WA light earthquake magnitude 4.2 (ml/mb) strikes 39 kilometers (24 miles) from Misawa in Japan on Thursday. Unique identifier: us1000h2t5. Ids that are associated to the event: us1000h2t5. Exact time and date of earthquake 19/09/18 / 2018-09-19 21:24:27 / September 19, 2018 @ 9:24 pm UTC/GMT. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The temblor was picked up at 06:24:27 / 6:24 am (local time epicenter). Exact location of event, depth 64.83 km, 141.6718° East, 40.9429° North. The earthquake was roughly at a depth of 64.83 km (40 miles).

The epicenter was 79 km (49 miles) from Aomori Shi (c. 298 400 pop), 51 km (32 miles) from Hachinohe (c. 239 000 pop), 54 km (34 miles) from Mutsu (c. 49 200 pop), 37 km (23 miles) from Misawa (c. 42 800 pop), 87 km (54 miles) from Ichinohe (c. 15 800 pop). Close country/countries that might be effected, Japan (c. 127 288 000 pop). Closest city/cities/towns to epicentrum/hypocenter was Ichinohe, Aomori Shi, Mutsu (min 5000 pop).

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

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. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 39 km NE of Misawa, Japan. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.2 mb The magnitude for the event.
Longitude 141.6718° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 40.9429° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 64.83 km Depth of the event in kilometers.
Place 39km NE 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 2018-09-19 21:24:27 Time when the event occurred. UTC/GMT
Updated 2018-10-07 05:35:03 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 271 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 0.485 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.93 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 147 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 us1000h2t5 Id of event.
Event Code 1000h2t5 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000h2t5, A comma-separated list of event ids that are associated to an event.

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