Updated 2026-08-30 15:47:34 UTC

M 2.1 — 2 km SE of Pacifica, CA

Magnitude 2.1, depth 8.8 km, 2026-08-30 09:04:12 UTC.

MagnitudeM 2.1
Depth8.8 km
Felt reports7
Statusautomatic
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 2.1 at 8.8 km depth.
  • 7 felt report(s) are associated with the USGS record.
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#191,551
Magnitude rank in country#7,804
M4.5+ within 250 km, ±15 days0
Quake Pulse

Impact and context

Descriptive indicators available for this event and its surroundings.

6/100Limited context
Felt reports7
Max felt intensity (CDI)2.2
Instrumental intensity (MMI)—
PAGER alertNot available
Tsunami indicator—
USGS significance71
Depth contextShallow
Nearby major citySan Francisco20 km · 808,000

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.

Quake Pulse

Around this epicenter

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

M 2.1 · 2 km SE of Pacifica, CA · 100 kmInteractive 3D view of earthquakes within 100 km of M 2.1 · 2 km SE of Pacifica, CA.M 2.1 · 2 km SE of Pacifica, CAM 1.2 · 15 km E of Seven Trees, CA · 78.1 kmM 1.7 · 2 km SW of San Ramon, CA · 45.6 kmM 1.3 · 11 km SSE of Portola Valley, CA · 41.7 kmM 1.4 · 26 km WSW of Westley, CA · 92.0 kmM 2.1 · 12 km NNE of Alum Rock, CA · 63.1 kmM 2.2 · 5 km SW of Yountville, CA · 85.6 kmM 1.2 · 26 km WSW of Westley, CA · 92.0 kmM 1.3 · 26 km WSW of Westley, CA · 91.6 kmM 1.7 · 26 km WSW of Westley, CA · 91.8 kmM 1.4 · 26 km WSW of Westley, CA · 91.4 kmM 2.6 · 26 km WSW of Westley, CA · 91.6 kmM 1.3 · 26 km WSW of Westley, CA · 91.5 kmM 3.3 · 27 km WSW of Westley, CA · 91.9 kmM 1.6 · 3 km SW of San Ramon, CA · 45.1 kmM 1.1 · 8 km SSE of Sunol, CA · 55.7 kmM 2.4 · 1 km SSW of Novato, CA · 56.0 kmM 1.2 · 8 km SSE of Sunol, CA · 55.2 kmM 2.3 · 4 km WNW of Orinda, CA · 38.7 kmM 2.2 · 1 km E of Port Costa, CA · 56.0 kmM 1.7 · 12 km SE of Livermore, CA · 70.2 kmM 1.4 · 12 km SE of Livermore, CA · 70.0 kmM 1.2 · 2 km E of Black Point-Green Point, CA · 57.4 kmM 1.1 · 2 km NE of Danville, CA · 49.6 kmM 1.4 · 12 km SE of Livermore, CA · 69.9 kmM 1.1 · 13 km SE of Livermore, CA · 71.7 kmM 1.8 · 11 km SSW of La Selva Beach, CA · 97.9 kmM 2.2 · 5 km SW of Yountville, CA · 86.5 kmM 0.9 · 20 km NE of Alum Rock, CA · 69.7 kmM 1.4 · 4 km NNW of San Leandro, CA · 31.9 kmM 2.3 · 2 km SE of Pacifica, CA · 0.2 kmM 1.5 · 8 km E of Alum Rock, CA · 70.3 kmM 1.4 · 3 km SW of American Canyon, CA · 63.5 kmM 1.7 · 3 km ENE of San Rafael, CA · 42.4 kmM 2.0 · 9 km ESE of Livermore, CA · 69.5 kmM 1.7 · 2 km NNE of Pleasant Hill, CA · 55.2 kmM 1.2 · 2 km SE of Pacifica, CA · 0.4 kmM 2.1 · 2 km NE of Pacifica, CA · 3.0 kmM 1.1 · 3 km W of Dublin, CA · 45.4 kmM 1.1 · 4 km WNW of Dublin, CA · 45.2 kmM 2.5 · 10 km ENE of Milpitas, CA · 60.7 kmM 1.2 · 5 km NNW of Morgan Hill, CA · 85.0 kmM 1.8 · 7 km W of Saint Helena, CA · 99.8 kmM 1.8 · 8 km W of Saint Helena, CA · 99.8 kmM 1.2 · 18 km E of Alum Rock, CA · 77.9 kmM 1.8 · 4 km NNE of Pacifica, CA · 4.9 kmM 2.6 · 21 km E of Alum Rock, CA · 82.5 kmM 2.0 · 3 km W of Dublin, CA · 45.7 kmM 1.5 · 2 km N of Berkeley, CA · 36.6 kmM 2.2 · 3 km W of Dublin, CA · 45.8 kmM 1.6 · 3 km W of Dublin, CA · 45.5 kmM 1.9 · 4 km ESE of Santa Rosa, CA · 94.4 kmM 1.6 · 4 km ESE of Santa Rosa, CA · 94.9 kmM 2.7 · 3 km ESE of Santa Rosa, CA · 94.4 kmM 1.9 · 6 km SW of Antioch, CA · 67.5 kmM 2.4 · 3 km WNW of Dublin, CA · 46.0 kmM 1.5 · 4 km NNE of Crockett, CA · 58.6 kmM 3.0 · 9 km SW of Brentwood, CA · 65.5 kmM 1.5 · 10 km ENE of Blackhawk, CA · 64.8 kmM 1.4 · 1 km ENE of Woodside, CA · 27.3 kmM 1.7 · 1 km ENE of Woodside, CA · 27.0 kmM 2.0 · 1 km E of Woodside, CA · 27.3 kmM 2.5 · 1 km E of Woodside, CA · 27.5 kmM 1.4 · 10 km NE of San Martin, CA · 96.4 kmM 2.6 · 9 km SW of Brentwood, CA · 66.0 kmM 1.4 · 15 km E of Seven Trees, CA · 78.5 kmM 1.5 · 14 km SSE of Livermore, CA · 67.8 kmM 0.8 · 4 km E of Berkeley, CA · 36.7 kmM 1.6 · 16 km E of Seven Trees, CA · 79.5 kmM 1.0 · 7 km ESE of St. Helena, CA · 96.9 kmM 1.3 · 6 km SSE of Portola Valley, CA · 37.3 kmM 1.4 · 3 km N of Piedmont, CA · 34.8 kmM 1.2 · 1 km SE of Oakland, CA · 30.4 kmM 0.9 · 2 km ENE of Berkeley, CA · 36.4 kmM 3.4 · 9 km SW of Brentwood, CA · 66.2 kmM 1.5 · 3 km W of Dublin, CA · 45.7 kmM 1.5 · 7 km E of Santa Venetia, CA · 43.2 kmM 1.4 · 3 km W of Dublin, CA · 45.4 kmM 1.1 · 3 km W of Dublin, CA · 45.5 kmM 1.8 · 3 km W of Dublin, CA · 45.2 kmM 1.6 · 8 km WSW of Mountain House, CA · 76.2 kmM 1.0 · 20 km NE of Morgan Hill, CA · 96.0 kmM 1.5 · 3 km W of Dublin, CA · 45.3 kmM 2.2 · 3 km WNW of Dublin, CA · 45.7 kmM 2.1 · 3 km WNW of Dublin, CA · 46.2 kmM 1.2 · 4 km W of Dublin, CA · 44.8 kmM 2.1 · 3 km W of Dublin, CA · 45.8 kmM 1.6 · 3 km ESE of Hayward, CA · 37.5 kmM 1.1 · 1 km SW of Diablo, CA · 51.2 kmM 2.5 · 2 km ESE of Oakland, CA · 31.0 kmM 1.2 · 4 km WNW of San Francisco Zoo, CA · 17.3 kmM 2.0 · 8 km NE of Alum Rock, CA · 66.2 kmM 0.8 · 17 km E of Alum Rock, CA · 79.1 kmM 1.6 · 14 km N of Morgan Hill, CA · 82.6 kmM 1.3 · 3 km ENE of Saratoga, CA · 56.1 kmM 2.1 · 8 km ENE of Vallejo, CA · 65.5 kmM 1.6 · 6 km N of Alum Rock, CA · 60.3 kmM 1.9 · 1 km SW of Diablo, CA · 51.2 kmM 1.8 · 5 km SE of Fairview, CA · 41.1 kmM 1.3 · 15 km SW of Loyola, CA · 45.7 kmM 1.0 · 1 km E of Pacheco, CA · 55.7 km
M 2.1 · 2 km SE of Pacifica, 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 2.1 → M 2.1
Depth change+0.0 km
Last update58504 min
2026-08-30 15:47:34 UTC2026-08-30 15:47:34 UTC

Explore related context

Putting this earthquake in context

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Interpret the numbers

Magnitude, depth, felt reports and status describe different parts of the event. None of them alone predicts the consequences for a specific city.

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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