Updated 2026-08-30 18:42:37 UTC

M 1.2 — 4 km SW of Chula Vista, CA

Magnitude 1.2, depth 16.9 km, 2026-08-30 01:43:10 UTC.

MagnitudeM 1.2
Depth16.9 km
Felt reports—
Statusreviewed
TsunamiNo
Quake Pulse Activity Index

Activity trend

A high index means recent activity is high relative to the selected historical baseline. It does not mean that a larger earthquake is about to occur.

Quake Pulse Activity Index84/100Elevated
Current 30 days18
Historical monthly median11.0
Historical percentileP84
M5+ in 30 days6
M6+ in 30 days0
Activity trendabove the historical median (+64%)
Baseline months: 60Last calculation: 2026-09-03 06:17:39How the index works →
Quake Pulse

What to know

A short factual reading of this event from the available observations.

  • Magnitude M 1.2 at 16.9 km depth.
Counts describe detected earthquakes and are not a forecast or hazard assessment.
Quake Pulse

Within the Quake Pulse database

Long-term comparisons are more robust at higher magnitudes because small-earthquake detection capability has changed over time.

Magnitude rank in database#199,423
Magnitude rank in country#15,313
M4.5+ within 250 km, ±15 days0
Quake Pulse

Impact and context

Descriptive indicators available for this event and its surroundings.

0/100Limited context
Felt reports—
Max felt intensity (CDI)—
Instrumental intensity (MMI)—
PAGER alertNot available
Tsunami indicator—
USGS significance21
Depth contextShallow
Nearby major cityLos Angeles195 km · 3,820,000

Nearby major city

Displayed population is the indexed city population, not an estimate of people exposed.

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These indicators describe data available after detection. They are neither a forecast nor a direct estimate of damage or individual risk.

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Around this epicenter

Nearby events observed around this epicenter. Spatial proximity does not necessarily mean they belong to the same sequence.

M 1.2 · 4 km SW of Chula Vista, CA · 100 kmInteractive 3D view of earthquakes within 100 km of M 1.2 · 4 km SW of Chula Vista, CA.M 1.2 · 4 km SW of Chula Vista, CAM 0.5 · 6 km NW of Lake Henshaw, CA · 78.4 kmM 0.6 · 11 km NE of Julian, CA · 79.9 kmM 0.6 · 12 km SSW of Borrego Springs, CA · 87.2 kmM 1.4 · 4 km NW of Aguanga, CA · 98.1 kmM 0.9 · 12 km NW of Warner Springs, CA · 91.7 kmM 0.6 · 7 km ESE of Palomar Observatory, CA · 84.7 kmM 0.5 · 4 km N of Julian, CA · 71.5 kmM 0.3 · 12 km NNW of Warner Springs, CA · 92.4 kmM 0.9 · 2 km S of Palomar Observatory, CA · 84.4 kmM 0.6 · 19 km SW of Ocotillo Wells, CA · 87.4 kmM 0.3 · 15 km N of Warner Springs, CA · 99.2 kmM 0.6 · 7 km S of Palomar Observatory, CA · 79.8 kmM 1.2 · 12 km NNW of Pine Valley, CA · 56.8 kmM 1.0 · 14 km N of Warner Springs, CA · 98.2 kmM 0.6 · 8 km NNE of Julian, CA · 77.3 kmM 0.7 · 20 km SW of Ocotillo Wells, CA · 87.1 kmM 2.3 · 46 km WSW of Carlsbad, CA · 79.6 kmM 1.6 · 22 km ESE of Julian, CA · 81.1 kmM 1.1 · 18 km ESE of Julian, CA · 77.6 kmM 0.8 · 8 km SSW of San Pasqual, CA · 48.5 kmM 0.6 · 11 km E of Julian, CA · 77.6 kmM 1.5 · 28 km SSW of Ocotillo Wells, CA · 84.8 kmM 0.5 · 28 km SSW of Ocotillo Wells, CA · 85.0 kmM 1.0 · 22 km SW of Ocotillo Wells, CA · 84.8 kmM 1.3 · 2 km NE of Imperial Beach, CA · 2.3 kmM 1.2 · 6 km W of Tecate, B.C., MX · 34.9 kmM 0.9 · 3 km SE of Lake Henshaw, CA · 76.0 kmM 0.5 · 11 km NE of Julian, CA · 80.3 kmM 2.4 · 29 km SSW of Dana Point, CA · 98.7 kmM 0.7 · 12 km NE of Julian, CA · 80.5 kmM 0.8 · 4 km WSW of Aguanga, CA · 93.6 kmM 0.8 · 16 km SE of Julian, CA · 68.7 kmM 1.1 · 11 km NNW of Ocotillo, CA · 98.3 kmM 0.7 · 11 km E of Julian, CA · 77.9 kmM 1.1 · 6 km ESE of Chula Vista, CA · 7.9 kmM 0.5 · 7 km W of Tecate, B.C., MX · 34.9 kmM 0.8 · 10 km NW of Pine Valley, CA · 55.1 kmM 0.3 · 11 km NE of Julian, CA · 80.4 kmM -0.1 · 15 km N of Warner Springs, CA · 99.2 kmM 0.3 · 11 km NE of Julian, CA · 80.4 kmM 0.8 · 8 km ESE of Bonita, CA · 11.3 kmM 0.6 · 7 km W of Tecate, B.C., MX · 34.5 kmM 0.8 · 8 km NNW of Lake Henshaw, CA · 83.2 kmM 0.7 · 8 km NNW of Lake Henshaw, CA · 83.2 kmM 1.8 · 12 km SW of Borrego Springs, CA · 85.8 kmM 0.6 · 13 km NNE of Warner Springs, CA · 98.5 kmM 0.5 · 5 km S of Borrego Springs, CA · 94.2 kmM 0.4 · 2 km WSW of Lake Henshaw, CA · 76.0 kmM 0.7 · 8 km NNW of Lake Henshaw, CA · 83.2 kmM 0.9 · 8 km NNW of Lake Henshaw, CA · 83.0 kmM 0.3 · 9 km ENE of Julian, CA · 76.7 kmM 0.9 · 9 km S of Campo, CA · 57.4 kmM 1.0 · 28 km ENE of Pine Valley, CA · 83.9 kmM 1.1 · 3 km ENE of Escondido, CA · 59.8 kmM 1.1 · 4 km ENE of Escondido, CA · 60.0 kmM 0.6 · 1 km NE of Julian, CA · 69.6 kmM 1.1 · 14 km NNE of Pine Valley, CA · 68.0 kmM 1.2 · 24 km SE of Campo, CA · 75.5 kmM 0.0 · 43 km WSW of Carlsbad, CA · 82.0 kmM 0.3 · 11 km NE of Julian, CA · 80.2 kmM 0.8 · 18 km SSW of Ocotillo, CA · 92.5 kmM 0.8 · 9 km SW of San Diego Country Estates, CA · 43.5 kmM 1.3 · 27 km ENE of Pine Valley, CA · 83.7 kmM 0.3 · 12 km NNW of Warner Springs, CA · 92.4 kmM 1.4 · 8 km WSW of Pala, CA · 81.5 kmM 0.9 · 6 km NNE of Lake Henshaw, CA · 82.4 kmM 1.5 · 27 km ENE of Pine Valley, CA · 83.7 kmM 1.1 · 18 km ESE of Julian, CA · 77.8 kmM 1.3 · 7 km ESE of Chula Vista, CA · 9.0 kmM 0.3 · 19 km SW of Ocotillo Wells, CA · 87.9 kmM 1.9 · 21 km E of Julian, CA · 81.8 kmM 1.0 · 10 km NE of San Diego Country Estates, CA · 62.2 kmM 0.5 · 18 km E of Julian, CA · 80.3 kmM 0.5 · 5 km SW of Palomar Observatory, CA · 82.1 kmM 0.4 · 25 km SW of Ocotillo Wells, CA · 83.6 kmM 1.8 · 20 km SW of Ocotillo Wells, CA · 87.2 kmM 0.5 · 27 km SSW of Ocotillo Wells, CA · 85.2 kmM 1.7 · 14 km N of Warner Springs, CA · 98.9 kmM 0.3 · 12 km NW of Warner Springs, CA · 92.0 kmM 1.2 · 20 km SW of Ocotillo Wells, CA · 86.9 kmM 1.1 · 14 km NNE of Pine Valley, CA · 67.5 kmM 0.5 · 14 km NNE of Pine Valley, CA · 68.1 kmM 0.9 · 16 km ESE of Julian, CA · 76.1 kmM 1.0 · 20 km S of Ocotillo Wells, CA · 95.6 kmM 0.5 · 19 km ESE of Julian, CA · 78.0 kmM 2.1 · 12 km NNW of Warner Springs, CA · 92.4 kmM 1.1 · 14 km N of Warner Springs, CA · 98.1 kmM 1.7 · 10 km NNE of Lake Henshaw, CA · 86.7 kmM 1.0 · 7 km NNW of La Mesa, CA · 24.6 kmM 0.8 · 19 km NNE of Pine Valley, CA · 72.4 kmM 1.1 · 14 km N of Warner Springs, CA · 98.7 kmM 0.6 · 6 km S of Palomar Observatory, CA · 80.8 kmM 0.4 · 14 km N of Warner Springs, CA · 98.8 kmM 0.5 · 9 km SW of San Diego Country Estates, CA · 43.5 kmM 0.4 · 11 km NW of Pine Valley, CA · 55.4 kmM 1.5 · 15 km SW of Tecate, B.C., MX · 31.8 kmM 0.8 · 25 km SW of Ocotillo Wells, CA · 83.3 kmM 0.6 · 12 km NW of Warner Springs, CA · 92.2 kmM 1.1 · 7 km ESE of Chula Vista, CA · 8.4 kmM 0.7 · 27 km ENE of Pine Valley, CA · 83.4 km
M 1.2 · 4 km SW of Chula Vista, CA100 km100 Recent earthquakes

Descriptive map centered on the epicenter; it does not represent felt intensity or risk.

Sequence context

No public sequence is currently associated with this event.

Nearby events · 100 km

Quake Pulse

USGS data evolution

Earthquake parameters can be revised after first publication. This timeline shows versions retained by Quake Pulse.

Revisions1
Magnitude change+0.0M 1.2 → M 1.2
Depth change+0.0 km
Last update58653 min
2026-08-30 18:42:37 UTC2026-08-30 18:42:37 UTC

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