Updated 2026-08-03 19:16:57 UTC

M 1.0 — 5 km N of Santa Ana, CA

Magnitude 1.0, depth 2.0 km, 2026-08-03 13:57:38 UTC.

MagnitudeM 1.0
Depth2.0 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 1.0 at 2.0 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#200,675
Magnitude rank in country#16,553
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 significance17
Depth contextShallow
Nearby major cityLos Angeles45 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 1.0 · 5 km N of Santa Ana, CA · 100 kmInteractive 3D view of earthquakes within 100 km of M 1.0 · 5 km N of Santa Ana, CA.M 1.0 · 5 km N of Santa Ana, CAM 3.2 · 6 km SE of Ontario, CA · 37.5 kmM 1.1 · 7 km WSW of Calimesa, CA · 72.9 kmM 0.9 · 4 km NW of Cabazon, CA · 99.7 kmM 0.5 · 3 km WNW of Devore, CA · 64.5 kmM 0.6 · 9 km ESE of Valle Vista, CA · 99.7 kmM 0.8 · 4 km SE of Lytle Creek, CA · 62.4 kmM 1.0 · 4 km ESE of Temecula, CA · 79.3 kmM 0.8 · 3 km SW of Winchester, CA · 72.0 kmM 1.0 · 5 km SE of Ontario, CA · 38.4 kmM 0.6 · 2 km W of Aguanga, CA · 99.6 kmM 1.6 · 4 km WNW of Muscoy, CA · 63.0 kmM 0.7 · 2 km NNW of Banning, CA · 93.8 kmM 1.1 · 5 km ESE of Ontario, CA · 40.8 kmM 1.4 · 5 km ESE of Ontario, CA · 40.3 kmM 1.1 · 2 km SE of Home Gardens, CA · 36.3 kmM 0.7 · 8 km NNE of Pala, CA · 87.2 kmM 1.9 · 7 km NNE of Pala, CA · 87.4 kmM 1.7 · 6 km NNW of Fontana, CA · 54.0 kmM 0.7 · 1 km NNE of Loma Linda, CA · 65.2 kmM 1.0 · 2 km NNE of Loma Linda, CA · 66.3 kmM 2.1 · 1 km N of Huntington Beach, CA · 14.1 kmM 1.4 · 4 km SSW of Compton, CA · 33.5 kmM 1.0 · 10 km WNW of Palomar Observatory, CA · 96.3 kmM 0.9 · 2 km NNW of Fontana, CA · 53.1 kmM 0.0 · 11 km S of Valle Vista, CA · 90.8 kmM 0.8 · 2 km NW of Walnut, CA · 28.0 kmM 0.5 · 3 km SSE of Lytle Creek, CA · 62.1 kmM 0.8 · 3 km NE of Loma Linda, CA · 67.3 kmM 0.4 · 10 km SSW of Valle Vista, CA · 90.4 kmM 1.3 · 26 km SW of Laguna Beach, CA · 47.1 kmM 0.9 · 11 km E of Yorba Linda, CA · 21.2 kmM 0.7 · 4 km NNE of Beaumont, CA · 87.6 kmM 0.8 · 6 km WNW of Mira Loma, CA · 38.6 kmM 1.0 · 3 km SSE of Highland, CA · 72.8 kmM 0.8 · 5 km SE of Mentone, CA · 77.8 kmM 0.9 · 9 km SSW of Calimesa, CA · 75.5 kmM 0.5 · 1 km NNE of Loma Linda, CA · 65.7 kmM 1.3 · 5 km NNW of Banning, CA · 94.2 kmM 0.7 · 11 km S of Valle Vista, CA · 90.7 kmM 1.0 · 13 km NW of Big Bear Lake, CA · 98.8 kmM 1.3 · 12 km SSE of San Clemente, CA · 58.0 kmM 1.2 · 5 km SE of Home Gardens, CA · 36.9 kmM 0.9 · 13 km NW of Big Bear Lake, CA · 98.8 kmM 1.3 · 1 km WNW of Universal City, CA · 60.3 kmM 0.5 · 2 km WSW of Beaumont, CA · 83.3 kmM 2.2 · 48 km WSW of Encinitas, CA · 97.3 kmM 0.7 · 13 km NW of Big Bear Lake, CA · 98.6 kmM 1.3 · 7 km SSE of Loma Linda, CA · 65.4 kmM 0.6 · 13 km NW of Big Bear Lake, CA · 98.7 kmM 0.7 · 4 km NNE of Beaumont, CA · 87.2 kmM 0.5 · 10 km S of Valle Vista, CA · 90.7 kmM 1.4 · 13 km NW of Big Bear Lake, CA · 98.7 kmM 0.9 · 4 km S of Redlands, CA · 69.6 kmM 1.0 · 3 km NW of Loma Linda, CA · 63.7 kmM 1.5 · 9 km WSW of Corona, CA · 21.4 kmM 1.8 · 2 km NW of Universal City, CA · 60.6 kmM 1.2 · 4 km NNE of Beaumont, CA · 87.3 kmM 1.1 · 11 km SSW of Valle Vista, CA · 89.9 kmM 1.0 · 5 km SSE of Banning, CA · 95.5 kmM 1.4 · 14 km SSW of San Pedro, CA · 46.7 kmM 1.5 · 14 km SSW of San Pedro, CA · 46.5 kmM 0.7 · 1 km NE of Colton, CA · 63.2 kmM 0.8 · 9 km SE of Valle Vista, CA · 99.0 kmM 1.0 · 7 km SSE of Temecula, CA · 80.3 kmM 0.9 · 2 km NE of Colton, CA · 63.5 kmM 0.7 · 6 km NNE of Valle Vista, CA · 92.9 kmM 0.8 · 7 km SSW of Beaumont, CA · 81.0 kmM 1.7 · 4 km SE of Home Gardens, CA · 36.8 kmM 1.0 · 7 km NE of Banning, CA · 99.1 kmM 1.5 · 2 km ENE of Loma Linda, CA · 66.3 kmM 1.9 · 14 km SSW of San Pedro, CA · 46.9 kmM 0.4 · 3 km WNW of Wrightwood, CA · 68.8 kmM 1.0 · 3 km SE of Loma Linda, CA · 65.8 kmM 1.1 · 1 km ESE of Culver City, CA · 52.9 kmM 1.2 · 10 km WSW of Murrieta, CA · 61.6 kmM 1.6 · 3 km E of Moreno Valley, CA · 65.8 kmM 1.0 · 3 km SSE of Highland, CA · 72.1 kmM 0.8 · 3 km SSE of Highland, CA · 72.2 kmM 0.8 · 3 km SSE of Highland, CA · 72.3 kmM 0.8 · 3 km SSE of Highland, CA · 72.3 kmM 0.5 · 5 km E of Calimesa, CA · 85.1 kmM 1.4 · 10 km WSW of Pinon Hills, CA · 70.6 kmM 1.5 · 9 km SSW of Valencia, CA · 95.9 kmM 0.8 · 1 km WSW of Rosemead, CA · 37.9 kmM 1.1 · 4 km SSE of Mentone, CA · 76.1 kmM 0.7 · 6 km E of Palmdale, CA · 89.5 kmM 1.2 · 14 km WNW of Camp Pendleton South, CA · 65.5 kmM 1.1 · 3 km NNW of Murrieta, CA · 64.5 kmM 0.9 · 7 km E of Calimesa, CA · 86.9 kmM 1.2 · 1 km WSW of Loma Linda, CA · 63.2 kmM 1.7 · 1 km S of Wrightwood, CA · 67.7 kmM 0.9 · 7 km ESE of Yucaipa, CA · 87.0 kmM 1.8 · 11 km WNW of Malibu, CA · 99.9 kmM 0.7 · 3 km SSE of Redlands, CA · 71.5 kmM 0.9 · 9 km S of Banning, CA · 94.1 kmM 0.5 · 4 km SSE of San Bernardino, CA · 66.0 kmM 0.9 · 9 km NNE of Pala, CA · 88.6 kmM 0.2 · 10 km SE of Winchester, CA · 82.2 kmM 0.7 · 1 km WNW of Banning, CA · 93.7 kmM 0.9 · 3 km W of San Jacinto, CA · 82.4 km
M 1.0 · 5 km N of Santa Ana, 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 1.0 → M 1.0
Depth change+0.0 km
Last update97540 min
2026-08-03 19:16:57 UTC2026-08-03 19:16:57 UTC

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Putting this earthquake in context

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Interpret the numbers

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Important limits

If the earthquake creates a safety concern, follow local authorities and official warning channels rather than relying on a public data website.

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