Updated 2026-10-09 08:46:19 UTC

M 1.6 — 23 km ENE of San Lucas, CA

Magnitude 1.6, depth 5.3 km, 2026-10-09 08:44:42 UTC.

MagnitudeM 1.6
Depth5.3 km
Felt reports—
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 1.6 at 5.3 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#195,353
Magnitude rank in country#11,391
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 significance40
Depth contextShallow
Nearby major citySan Francisco223 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.

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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 1.6 · 23 km ENE of San Lucas, CA · 100 kmInteractive 3D view of earthquakes within 100 km of M 1.6 · 23 km ENE of San Lucas, CA.M 1.6 · 23 km ENE of San Lucas, CAM 0.8 · 22 km NW of Parkfield, CA · 28.8 kmM 1.6 · 2 km WNW of Hollister, CA · 87.7 kmM 2.1 · 2 km NW of Hollister, CA · 87.6 kmM 1.8 · 15 km SSE of New Idria, CA · 18.8 kmM 1.7 · 8 km ESE of Prunedale, CA · 90.3 kmM 2.4 · 13 km E of Santa Margarita, CA · 99.5 kmM 1.5 · 14 km S of Tres Pinos, CA · 66.3 kmM 1.5 · 5 km SE of Coalinga, CA · 46.0 kmM 0.6 · 14 km NW of Parkfield, CA · 36.8 kmM 0.9 · 9 km NW of Parkfield, CA · 41.7 kmM 1.6 · 12 km SSW of Tres Pinos, CA · 69.5 kmM 1.4 · 16 km NW of Pinnacles, CA · 60.9 kmM 2.5 · 5 km ENE of Pinnacles, CA · 43.2 kmM 2.3 · 4 km SE of Coalinga, CA · 44.8 kmM 0.3 · 22 km NW of Parkfield, CA · 28.5 kmM 0.8 · 14 km NW of Parkfield, CA · 36.8 kmM 1.8 · 11 km SSW of San Lucas, CA · 31.8 kmM 0.9 · 12 km NNE of Parkfield, CA · 47.2 kmM 1.5 · 11 km E of Pinnacles, CA · 38.0 kmM 1.9 · 5 km NW of Pinnacles, CA · 49.7 kmM 2.0 · 5 km NE of Santa Margarita, CA · 93.7 kmM 2.3 · 10 km SSE of Pinnacles, CA · 34.8 kmM 1.5 · 5 km N of Pinnacles, CA · 48.8 kmM 2.0 · 11 km NW of Parkfield, CA · 39.2 kmM 1.4 · 11 km SSW of Tres Pinos, CA · 73.1 kmM 2.0 · 8 km N of Coalinga, CA · 40.5 kmM 2.5 · 10 km NW of Pinnacles, CA · 54.5 kmM 1.5 · 3 km N of Cholame, CA · 70.9 kmM 2.4 · 7 km SE of Pinnacles, CA · 37.3 kmM 1.5 · 14 km N of San Simeon, CA · 62.4 kmM 1.3 · 22 km SE of Pinnacles, CA · 23.0 kmM 1.3 · 9 km NNW of Avenal, CA · 60.1 kmM 2.5 · 12 km NNE of San Lucas, CA · 15.5 kmM 1.1 · 11 km N of Hollister, CA · 96.0 kmM 1.7 · 2 km NW of Hollister, CA · 88.0 kmM 1.5 · 12 km SW of Huron, CA · 56.1 kmM 1.2 · 11 km NW of Parkfield, CA · 39.5 kmM 1.4 · 8 km ENE of Pinnacles, CA · 41.6 kmM 1.4 · 25 km NW of Parkfield, CA · 25.6 kmM 0.7 · 22 km NW of Parkfield, CA · 29.0 kmM 0.5 · 23 km NW of Parkfield, CA · 28.1 kmM 1.6 · 22 km SW of New Idria, CA · 4.7 kmM 2.3 · 16 km S of Tres Pinos, CA · 63.8 kmM 1.3 · 11 km NNE of Parkfield, CA · 47.4 kmM 1.1 · 7 km SW of Atascadero, CA · 89.2 kmM 1.9 · 5 km SE of Pinnacles, CA · 39.8 kmM 1.1 · 2 km NW of Hollister, CA · 87.5 kmM 0.7 · 23 km NW of Parkfield, CA · 27.5 kmM 2.1 · 8 km NW of Pinnacles, CA · 52.6 kmM 1.4 · 10 km NW of Parkfield, CA · 40.6 kmM 1.3 · 7 km W of Templeton, CA · 76.3 kmM 1.3 · 6 km SE of Pinnacles, CA · 38.4 kmM 1.2 · 13 km NNE of Pinnacles, CA · 50.0 kmM 1.5 · 8 km W of Templeton, CA · 75.8 kmM 1.3 · 8 km W of Templeton, CA · 75.1 kmM 2.5 · 7 km SE of Pinnacles, CA · 37.4 kmM 1.5 · 15 km WSW of Firebaugh, CA · 67.6 kmM 1.2 · 16 km NW of Parkfield, CA · 34.7 kmM 1.5 · 6 km ENE of Chualar, CA · 69.8 kmM 1.9 · 15 km WNW of Templeton, CA · 73.5 kmM 2.6 · 2 km NW of Hollister, CA · 88.1 kmM 1.0 · 13 km N of San Simeon, CA · 63.3 kmM 1.9 · 10 km SSW of Tres Pinos, CA · 74.1 kmM 1.5 · 16 km S of Tres Pinos, CA · 63.8 kmM 0.2 · 17 km NW of Parkfield, CA · 33.9 kmM 2.3 · 13 km W of Lake Nacimiento, CA · 60.8 kmM 2.6 · 12 km W of Lake Nacimiento, CA · 60.5 kmM 1.7 · 10 km SW of Ridgemark, CA · 78.7 kmM 1.5 · 8 km NNW of Pinnacles, CA · 51.9 kmM 1.5 · 11 km ESE of New Idria, CA · 27.5 kmM 1.5 · 4 km SE of Aromas, CA · 99.8 kmM 2.0 · 21 km NW of Parkfield, CA · 29.3 kmM 1.4 · 13 km NE of Hollister, CA · 88.0 kmM 1.1 · 19 km N of San Simeon, CA · 60.4 kmM 1.2 · 19 km SE of Pinnacles, CA · 25.1 kmM 1.3 · 23 km ENE of San Lucas, CA · 2.9 kmM 1.4 · 6 km SE of Pinnacles, CA · 38.1 kmM 1.3 · 6 km SSE of Pinnacles, CA · 38.9 kmM 1.4 · 22 km NW of Parkfield, CA · 28.6 kmM 1.3 · 2 km SW of Parkfield, CA · 50.5 kmM 2.2 · 1 km WSW of Parkfield, CA · 50.1 kmM 1.6 · 31 km NE of Pinnacles, CA · 51.9 kmM 1.1 · 21 km SW of New Idria, CA · 4.8 kmM 1.6 · 5 km E of Pinnacles, CA · 42.3 kmM 1.1 · 3 km SSW of San Juan Bautista, CA · 92.6 kmM 2.2 · 10 km SE of Huron, CA · 72.1 kmM 2.0 · 11 km SE of Pinnacles, CA · 33.7 kmM 1.7 · 18 km ENE of San Lucas, CA · 6.7 kmM 1.9 · 11 km SW of King City, CA · 37.3 kmM 1.4 · 6 km WNW of Hollister, CA · 91.2 kmM 1.1 · 15 km NNE of Tres Pinos, CA · 84.7 kmM 1.5 · 5 km NNW of Hollister, CA · 90.4 kmM 2.1 · 32 km SW of South Dos Palos, CA · 55.4 kmM 1.6 · 10 km NW of Pinnacles, CA · 54.0 kmM 1.1 · 21 km NW of Parkfield, CA · 29.5 kmM 2.3 · 21 km NW of Parkfield, CA · 29.3 kmM 1.9 · 14 km ENE of Hollister, CA · 85.1 kmM 0.6 · 19 km NW of Parkfield, CA · 31.3 kmM 1.8 · 26 km SSW of South Dos Palos, CA · 57.0 kmM 1.4 · 14 km SSW of Tres Pinos, CA · 68.9 km
M 1.6 · 23 km ENE of San Lucas, 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 1.6 → M 1.6
Depth change+0.0 km
Last update888 min
2026-10-09 08:46:19 UTC2026-10-09 08:46:19 UTC

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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

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