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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4 mag was detected near Honchō in Japan


Earthquake location 42.4532S, 143.877WA light earthquake magnitude 4 (ml/mb) strikes 43 kilometers (27 miles) from Honchō in Japan on Friday. Global date and time of event UTC/GMT: 09/05/25 / 2025-05-09 03:39:32 / May 9, 2025 @ 3:39 am. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The earthquake was roughly at a depth of 94.93 km (59 miles). Event id: us7000q13r. Ids that are associated to the earthquake: us7000q13r. Exact location of event, depth 94.93 km, 143.877° East, 42.4532° North. The temblor was picked up at 03:39:32 / 3:39 am (local time epicenter).

Country/countries that might be effected, Japan (c. 127 288 000 pop). Earthquake epicenter was 71 km (44 miles) from Kushiro (c. 183 600 pop), 75 km (47 miles) from Obihiro (c. 173 900 pop), 81 km (51 miles) from Otofuke (c. 40 900 pop). Nearest cities/city/villages to epicentrum/hypocenter was Otofuke, Obihiro, Kushiro (min 5000 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 four, in the last 10 days four, in the past 30 days seven and in the last 365 days thirty-five earthquakes of magnitude 3.0 or greater that has occurred nearby.

Did you feel it?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 43 km SSE of Honchō, Japan. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4 mb The magnitude for the event.
Longitude 143.877° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 42.4532° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 94.93 km Depth of the event in kilometers.
Place 43 km SSE of Honchō, Japan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2025-05-09 03:39:32 Time when the event occurred. UTC/GMT
Updated 2025-05-23 22:50:18 Time when the event was most recently updated. UTC/GMT
Timezone offset 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 246 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 17 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.691 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.48 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 194 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 us7000q13r Id of event.
Event Code 7000q13r An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us7000q13r, A comma-separated list of event ids that are associated to an event.

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