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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.9 mag strikes near Iwaki in Japan

Earthquake location 37.0862S, 141.2971WA light earthquake magnitude 4.9 (ml/mb) has occurred on Friday, 37 kilometers (23 miles) from Iwaki in Japan. The earthquake occurred at a depth of 45.88 km (29 miles) below the earth’s surface. Exact location of earthquake, 141.2971° East, 37.0862° North, depth 45.88 km. Id of earthquake: us1000h6eg. Event ids that are associated: us1000h6eg. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact time and date of earthquake 27/09/18 / 2018-09-27 19:32:24 / September 27, 2018 @ 7:32 pm UTC/GMT. The temblor was reported at 04:32:24 / 4:32 am (local time epicenter).

Earthquake epicenter was 37 km (23 miles) from Iwaki (c. 357 300 pop), 88 km (55 miles) from Kōriyama (c. 340 600 pop), 79 km (49 miles) from Hitachi (c. 186 300 pop), 102 km (64 miles) from Hitachi-Naka (c. 156 800 pop), 84 km (52 miles) from Sukagawa (c. 68 800 pop), 59 km (37 miles) from Kitaibaraki (c. 50 800 pop), 94 km (59 miles) from Nihommatsu (c. 36 300 pop). Nearest cities/city/towns to hypocenter/epicentrum was Hitachi-Naka, Ōmiya, Funaishikawa (min 5000 pop). Nearby country/countries, Japan (c. 127 288 000 pop) (That might be effected).

In the past 24 hours, there have been three, in the last 10 days five, in the past 30 days twelve and in the last 365 days seventy-six earthquakes of magnitude 3.0 or greater that was reported nearby. Every year there are an estimated 13,000 light earthquakes in the world. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

Did you feel anything?

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. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 37 km E of Iwaki, Japan.

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More information

Parameter Value Description
Magnitude 4.9 mb The magnitude for the event.
Longitude 141.2971° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 37.0862° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 45.88 km Depth of the event in kilometers.
Place 37km E 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 2018-09-27 19:32:24 Time when the event occurred. UTC/GMT
Updated 2018-10-16 20:43:24 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 369 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 0.879 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.02 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 166 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 us1000h6eg Id of event.
Event Code 1000h6eg An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000h6eg, A comma-separated list of event ids that are associated to an event.

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