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Light earthquake: M4.5 quake has struck near Hasaki in Japan

Earthquake location 35.2516S, 141.264WA light earthquake with magnitude 4.5 (ml/mb) was reported 66 kilometers (41 miles) from Hasaki in Japan on Saturday. The earthquake occurred at a depth of 31.63 km (20 miles). Global date and time of event UTC/GMT: 11/08/18 / 2018-08-11 05:18:36 / August 11, 2018 @ 5:18 am. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Id of earthquake: us1000g6sn. Event ids that are associated: us1000g6sn. Exact location, longitude 141.264° East, latitude 35.2516° North, depth = 31.63 km. The temblor was reported at 14:18:36 / 2:18 pm (local time epicenter).

Country/countries that might be effected, Japan (c. 127 288 000 pop). Nearest cities/city/villages to epicentrum/hypocenter was Yachimata, Ōami, Mobara (min 5000 pop). Earthquake epicenter was 89 km (56 miles) from Mobara (c. 97 300 pop), 97 km (60 miles) from Yachimata (c. 83 300 pop), 88 km (55 miles) from Tōgane (c. 66 300 pop), 91 km (56 miles) from Ōami (c. 53 200 pop), 76 km (47 miles) from Asahi (c. 41 700 pop), 66 km (41 miles) from Hasaki (c. 39 200 pop), 82 km (51 miles) from Yōkaichiba (c. 32 700 pop).

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

Did you feel the quake?

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 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: 66 km SE of Hasaki, Japan.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude 141.264° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 35.2516° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 31.63 km Depth of the event in kilometers.
Place 66km SE of Hasaki, Japan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-08-11 05:18:36 Time when the event occurred. UTC/GMT
Updated 2018-08-11 07:05:21 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 312 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 2.446 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 140 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 us1000g6sn Id of event.
Event Code 1000g6sn An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000g6sn, A comma-separated list of event ids that are associated to an event.

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