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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.2 mag strikes near Hakodate in Japan


Earthquake location 41.8851S, 141.4714WA light earthquake magnitude 4.2 (ml/mb) strikes 62 kilometers (39 miles) from Hakodate in Japan on Monday. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of earthquake, 141.4714° East, 41.8851° North, depth 110.34 km. Global time and date of event 18/02/18 / 2018-02-18 15:35:57 / February 18, 2018 @ 3:35 pm UTC/GMT. The epicenter was at a depth of 110.34 km (69 miles). The 4.2-magnitude earthquake was detected at 00:35:57 / 12:35 am (local time epicenter). Id of earthquake: us2000d8s7. Event ids that are associated: us2000d8s7.

Event epicenter was 62 km (39 miles) from Hakodate (c. 275 700 pop), 84 km (52 miles) from Tomakomai (c. 174 800 pop), 62 km (39 miles) from Muroran (c. 96 200 pop), 70 km (43 miles) from Mutsu (c. 49 200 pop), 69 km (43 miles) from Kamiiso (c. 38 100 pop), 82 km (51 miles) from Date (c. 35 300 pop). Close country/countries, Japan (c. 127 288 000 pop) (That might be effected). Nearest cities/city/towns to hypocenter/epicentrum was Shizunai-furukawachō, Tomakomai, Date (min 5000 pop).

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

Did you feel it?

Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home and country. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 62 km ENE of Hakodate, Japan. This information 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 141.4714° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 41.8851° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 110.34 km Depth of the event in kilometers.
Place 62km ENE of Hakodate, Japan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-02-18 15:35:57 Time when the event occurred. UTC/GMT
Updated 2018-02-28 17:39:01 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 1.136 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.55 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 94 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 us2000d8s7 Id of event.
Event Code 2000d8s7 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000d8s7, A comma-separated list of event ids that are associated to an event.

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