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Light earthquake 4.47 mag, 1 km SSE of Pleasant Hill, CA

Earthquake location 37.9375S, -122.0579987WA light earthquake with magnitude 4.47 (ml/mb) was detected on Monday, 1 kilometers (1 miles) from Pleasant Hill in CA. The temblor was detected at 21:33:42 / 9:33 pm (local time epicenter). The earthquake occurred at a depth of 14.57 km (9 miles) below the earth’s surface. Exact location of event, depth 14.57 km, -122.0579987° West, 37.9375° North. A tsunami warning has been issued near Pleasant Hill in CA (Does not indicate if a tsunami actually did or will exist). Date and time of earthquake in UTC/GMT: 15/10/19 / 2019-10-15 05:33:42 / October 15, 2019 @ 5:33 am. Id of earthquake: nc73291880. Event ids that are associated: at00pzei47, nc73291880.

The epicenter was 68 km (42 miles) from San Jose (c. 945 900 pop), 37 km (23 miles) from San Francisco (c. 805 200 pop), 87 km (54 miles) from Sacramento (c. 466 500 pop), 24 km (15 miles) from Oakland (c. 390 700 pop), 67 km (42 miles) from Stockton (c. 291 700 pop), 44 km (27 miles) from Fremont (c. 214 100 pop). Close country/countries, United States (c. 310 233 000 pop) (That might be effected). Closest city/cities/towns to epicentrum/hypocenter was West Modesto, Arden-Arcade, Windsor (min 5000 pop).

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. There are an estimated 13,000 light quakes 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 four and in the last 365 days twenty-three earthquakes of magnitude 3.0 or greater that has struck near.

How would you describe the shaking?

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: 1 km SSE of Pleasant Hill, CA.

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More information

Parameter Value Description
Magnitude 4.47 mb The magnitude for the event.
Longitude -122.0579987° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 37.9375° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 14.57 km Depth of the event in kilometers.
Place 1km SSE of Pleasant Hill, CA Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2019-10-15 05:33:42 Time when the event occurred. UTC/GMT
Updated 2019-10-15 05:41:34 Time when the event was most recently updated. UTC/GMT
Timezone offset -480 Timezone offset from UTC in minutes at the event epicenter.
Felt 57 The total number of felt reports
CDI 4.6 The maximum reported intensity for the event.
MMI 6.2 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 automatic Indicates whether the event has been reviewed by a human.
Tsunami 1 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 334 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 ,at,nc, A comma-separated list of network contributors.
Number of Stations Used 95 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.07705 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.12 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 24 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 nc73291880 Id of event.
Event Code 73291880 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,at00pzei47,nc73291880, A comma-separated list of event ids that are associated to an event.

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