M 1.3 Quarry Blast – 6km ESE of Chula Vista, CA

Earthquake Date and Time: 2018-02-23 at 23:27:00 (2018-02-23 15:27:00 -08:00 UTC).

The geographic location of this magnitude 1.3 earthquake was 32.605° N latitude, 116.988° W longitude, at a depth of , approximately 6km ESE of Chula Vista, CA.

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6km ESE of Chula Vista, CA

Source: https://earthquake.usgs.gov/earthquakes/eventpage/ci38114576

Magnitude 1.8 earthquake, 8km NW of Rancho Cucamonga, CA

Earthquake Date and Time: 2018-02-23 at 23:48:45 (2018-02-23 15:48:45 -08:00 UTC).

The geographic location of this magnitude 1.8 earthquake was 34.184° N latitude, 117.635° W longitude, at a depth of 15.13 km (9.40 mi), approximately 8km NW of Rancho Cucamonga, CA.

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8km NW of Rancho Cucamonga, CA

Source: https://earthquake.usgs.gov/earthquakes/eventpage/ci38114592

Magnitude 0.4 earthquake, 72km NNW of Nikiski, Alaska

Earthquake Date and Time: 2018-02-23 at 23:55:55 (2018-02-23 14:55:55 -09:00 UTC).

The geographic location of this magnitude 0.4 earthquake was 61.259° N latitude, 151.947° W longitude, at a depth of 14.90 km (9.26 mi), approximately 72km NNW of Nikiski, Alaska.

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72km NNW of Nikiski, Alaska

Source: https://earthquake.usgs.gov/earthquakes/eventpage/ak18504693

Magnitude 1.9 earthquake, 4km NNW of Los Angeles, California

Earthquake Date and Time: 2018-02-23 at 22:55:40 (2018-02-23 14:55:40 -08:00 UTC).

The geographic location of this magnitude 1.9 earthquake was 34.090° N latitude, 118.260° W longitude, at a depth of 5.70 km (3.54 mi), approximately 4km NNW of Los Angeles, California.

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4km NNW of Los Angeles, California

Source: https://earthquake.usgs.gov/earthquakes/eventpage/ci38114536

Magnitude 2.3 earthquake, 1km ENE of Silver Lake, CA

Earthquake Date and Time: 2018-02-23 at 22:55:40 (2018-02-23 14:55:40 -08:00 UTC).

The geographic location of this magnitude 2.3 earthquake was 34.094° N latitude, 118.258° W longitude, at a depth of 5.01 km (3.11 mi), approximately 1km ENE of Silver Lake, CA.

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1km ENE of Silver Lake, CA

Source: https://earthquake.usgs.gov/earthquakes/eventpage/ci38114528