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Light World Earthquakes Magnitude 4-4.9

Light earthquake 4.1 mag, 75 km ESE of Iwaki, Japan


Earthquake location 36.813S, 141.6802WA light earthquake with magnitude 4.1 (ml/mb) was reported 75 kilometers (47 miles) from Iwaki in Japan on Monday. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The temblor was detected at 09:27:17 / 9:27 am (local time epicenter). Event id: us200066hx. Ids that are associated to the earthquake: us200066hx. The epicenter was at a depth of 39.77 km (25 miles). Exact location of event, longitude 141.6802 East, latitude 36.813 North, depth = 39.77 km. Date and time of earthquake in UTC/GMT: 20/06/16 / 2016-06-20 00:27:17 / June 20, 2016 @ 12:27 am.

Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Takahagi, Kitaibaraki, Iwaki. Country/countries that might be effected, Japan (c. 127 288 000 pop). The epicenter was 76 km (47 miles) from Iwaki (c. 357 300 pop), 83 km (52 miles) from Kitaibaraki (c. 50 800 pop), 86 km (54 miles) from Takahagi (c. 33 600 pop).

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

How would you describe the shaking?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity 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: 75 km ESE of Iwaki, Japan.

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More information

Parameter Value Description
Magnitude 4.1 mb The magnitude for the event.
Longitude 141.6802° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 36.813° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 39.77 km Depth of the event in kilometers.
Place 75km ESE of Iwaki, Japan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2016-06-20 00:27:17 Time when the event occurred. UTC/GMT
Updated 2016-07-08 04:32:34 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 1.27 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.25 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 157 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 us200066hx Id of event.
Event Code 200066hx An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us200066hx, A comma-separated list of event ids that are associated to an event.

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