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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.02 mag was detected near Blue Lake in CA


Earthquake location 40.828333333333S, -123.90183333333WA light earthquake with magnitude 4.02 (ml/mb) was detected on Wednesday, 9 kilometers (6 miles) from Blue Lake in CA. Id of earthquake: nc75006996. Event ids that are associated: nc75006996, us6000mypi. The temblor was reported at 06:39:03 / 6:39 am (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Global date and time of event UTC/GMT: 15/05/24 / 2024-05-15 06:39:03 / May 15, 2024 @ 6:39 am. The earthquake occurred at a depth of 25.58 km (16 miles) below the earth’s surface. Exact location of earthquake, -123.90183333333° West, 40.828333333333° North, depth 25.58 km.

Closest city/cities/towns to epicentrum/hypocenter was Fortuna, Eureka, McKinleyville (min 5000 pop). The epicenter was 22 km (14 miles) from Eureka (c. 27 200 pop), 16 km (10 miles) from Arcata (c. 17 200 pop), 14 km (9 miles) from Bayside (c. 17 100 pop), 21 km (13 miles) from McKinleyville (c. 15 200 pop), 33 km (21 miles) from Fortuna (c. 11 900 pop). Close country/countries that might be effected, United States (c. 310 233 000 pop).

In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days two and in the last 365 days two earthquakes of magnitude 3.0 or greater that has struck near. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. Every year there are an estimated 13,000 light earthquakes in the world.

Did you feel anything?

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: 9 km SE of Blue Lake, CA. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.02 mb The magnitude for the event.
Longitude -123.90183333333° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 40.828333333333° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 25.58 km Depth of the event in kilometers.
Place 9 km SE of Blue Lake, CA Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2024-05-15 06:39:03 Time when the event occurred. UTC/GMT
Updated 2024-05-16 06:46:35 Time when the event was most recently updated. UTC/GMT
Timezone offset Timezone offset from UTC in minutes at the event epicenter.
Felt 917 The total number of felt reports
CDI 4 The maximum reported intensity for the event.
MMI 3.213 The maximum estimated instrumental intensity for the event.
Alert Level green 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 615 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network nc The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,nc,us, A comma-separated list of network contributors.
Number of Stations Used 47 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.09753 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.15 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 34 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type mw The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID nc75006996 Id of event.
Event Code 75006996 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,nc75006996,us6000mypi, A comma-separated list of event ids that are associated to an event.

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