Every recorded earthquake near

Earthquakes near Half Moon Bay, CA

M 2.6

Latest: 4:41 pm PDT on 25 April 2026 · 28 km (17 mi) NNW of Half Moon Bay, CA

The most recent earthquake of M2.5 or more near Half Moon Bay was M 2.6, 28 km (17 mi) NNW of Half Moon Bay, CA, at 4:41 pm PDT on 25 April 2026. 99 people reported feeling it to USGS. 31 smaller earthquakes have been recorded nearby since; the newest is first in the list below.

Within 30 km since 2016: 428 earthquakes of M1.5 or more
In the last 12 months: 93
Largest since 2016: M 3.7 on 27 October 2023, 18 km (11 mi) NNE of Half Moon Bay, CA
Reported felt: 174 of them have felt reports to USGS

USGS · feed checked 30 seconds ago · newest earthquake in our database 7 minutes ago · this page 01:03 UTC

The latest 50

2.3 16 km (10 mi) NNW of Half Moon Bay, CA · felt by 54 Sep 21, 2026
8:24 pm PDT
2.1 19 km (11 mi) NNW of Half Moon Bay, CA · felt by 8 Sep 19, 2026
5:16 pm PDT
1.8 20 km (13 mi) N of Half Moon Bay, CA Sep 17, 2026
2:32 am PDT
1.7 17 km (10 mi) ESE of Half Moon Bay, CA Sep 13, 2026
5:52 pm PDT
1.8 17 km (10 mi) ESE of Half Moon Bay, CA · felt by 5 Sep 13, 2026
5:45 pm PDT
2.5 17 km (10 mi) ESE of Half Moon Bay, CA · felt by 179 Sep 13, 2026
5:44 pm PDT
1.6 16 km (10 mi) NNW of Half Moon Bay, CA Aug 30, 2026
9:38 am PDT
2.0 15 km (10 mi) NNW of Half Moon Bay, CA · felt by 7 Aug 30, 2026
2:04 am PDT
1.7 16 km (10 mi) NNW of Half Moon Bay, CA Aug 28, 2026
1:28 pm PDT
2.1 16 km (10 mi) NNW of Half Moon Bay, CA · felt by 11 Aug 26, 2026
7:13 pm PDT
1.6 16 km (10 mi) NNW of Half Moon Bay, CA Aug 22, 2026
11:24 am PDT
1.5 19 km (12 mi) ESE of Half Moon Bay, CA Aug 18, 2026
11:18 am PDT
1.8 19 km (12 mi) ESE of Half Moon Bay, CA Aug 18, 2026
10:05 am PDT
1.7 25 km (15 mi) SE of Half Moon Bay, CA Aug 18, 2026
7:04 am PDT
1.9 19 km (12 mi) ESE of Half Moon Bay, CA · felt by 1 Aug 18, 2026
2:30 am PDT
1.6 17 km (11 mi) ESE of Half Moon Bay, CA Jul 23, 2026
9:47 pm PDT
1.5 16 km (10 mi) NNW of Half Moon Bay, CA Jul 13, 2026
11:24 am PDT
1.5 16 km (10 mi) NNW of Half Moon Bay, CA Jul 13, 2026
1:59 am PDT
1.5 15 km (9 mi) NNW of Half Moon Bay, CA Jul 12, 2026
10:53 pm PDT
1.7 15 km (10 mi) NNW of Half Moon Bay, CA Jul 8, 2026
6:20 am PDT
1.6 18 km (11 mi) NNE of Half Moon Bay, CA Jul 4, 2026
5:24 pm PDT
1.6 15 km (10 mi) NNW of Half Moon Bay, CA Jul 1, 2026
10:22 pm PDT
2.3 16 km (10 mi) NNW of Half Moon Bay, CA · felt by 19 Jun 27, 2026
9:25 am PDT
1.9 16 km (10 mi) NNW of Half Moon Bay, CA Jun 21, 2026
12:47 pm PDT
1.9 25 km (16 mi) SE of Half Moon Bay, CA Jun 14, 2026
2:35 pm PDT
1.6 16 km (10 mi) NNW of Half Moon Bay, CA Jun 12, 2026
3:18 am PDT
1.7 16 km (10 mi) NNW of Half Moon Bay, CA Jun 6, 2026
7:43 pm PDT
1.7 16 km (10 mi) NNW of Half Moon Bay, CA May 12, 2026
11:53 am PDT
1.8 15 km (10 mi) NNW of Half Moon Bay, CA May 10, 2026
2:30 pm PDT
2.3 15 km (10 mi) NNW of Half Moon Bay, CA · felt by 14 May 5, 2026
4:23 pm PDT
1.5 28 km (17 mi) NNW of Half Moon Bay, CA Apr 25, 2026
4:59 pm PDT
2.6 28 km (17 mi) NNW of Half Moon Bay, CA · felt by 99 Apr 25, 2026
4:41 pm PDT
1.9 28 km (17 mi) NNW of Half Moon Bay, CA · felt by 2 Apr 25, 2026
4:40 pm PDT
2.9 28 km (17 mi) NNW of Half Moon Bay, CA · felt by 1,085 Apr 25, 2026
4:39 pm PDT
1.7 23 km (14 mi) NNW of Half Moon Bay, CA Apr 12, 2026
5:39 am PDT
1.5 15 km (9 mi) NNW of Half Moon Bay, CA Apr 1, 2026
2:39 pm PDT
1.6 14 km (9 mi) NNW of Half Moon Bay, CA Mar 31, 2026
8:44 am PDT
1.7 15 km (9 mi) NNW of Half Moon Bay, CA Mar 27, 2026
1:08 am PDT
1.8 15 km (9 mi) NNW of Half Moon Bay, CA Mar 26, 2026
6:15 am PDT
1.8 15 km (9 mi) NNW of Half Moon Bay, CA · felt by 1 Mar 26, 2026
2:42 am PDT
1.6 16 km (10 mi) NNW of Half Moon Bay, CA Mar 25, 2026
2:19 pm PDT
1.9 15 km (9 mi) NNW of Half Moon Bay, CA Mar 23, 2026
12:28 pm PDT
1.8 13 km (8 mi) N of Half Moon Bay, CA Mar 21, 2026
12:06 am PDT
1.8 23 km (14 mi) NNW of Half Moon Bay, CA Mar 20, 2026
11:12 pm PDT
1.9 15 km (9 mi) N of Half Moon Bay, CA Mar 18, 2026
9:38 am PDT
2.5 17 km (11 mi) SE of Half Moon Bay, CA · felt by 26 Mar 14, 2026
10:39 am PDT
1.9 17 km (11 mi) SE of Half Moon Bay, CA · felt by 2 Mar 13, 2026
3:44 pm PDT
2.4 17 km (11 mi) SE of Half Moon Bay, CA · felt by 7 Mar 13, 2026
12:25 pm PDT
2.1 15 km (9 mi) NNW of Half Moon Bay, CA · felt by 2 Mar 13, 2026
6:48 am PDT
2.1 17 km (11 mi) NNE of Half Moon Bay, CA · felt by 3 Mar 13, 2026
2:30 am PDT

From the QuakeIndex database, which reads the USGS feed every 30 seconds and holds the USGS catalogue for the US from 2016 (M1.5+). Times are Half Moon Bay time. Distances are from the town centre. Quakes USGS named after Half Moon Bay are listed even when they are further out.

On the map

Map loads when it scrolls into view

The white circle is Half Moon Bay; dots are the 50 most recent earthquakes within 30 km. Map © OpenStreetMap contributors.

Before 2016

The USGS record since 1900 lists 5 earthquakes of M5 or more within 50 km of Half Moon Bay:

7.9 The 1906 San Francisco, California Earthquake · 34 km NNW of Half Moon Bay 1906
5.8 7 km NNW of Boulder Creek, California · 40 km SE of Half Moon Bay 1955
5.3 The 1957 San Francisco, California Earthquake · 23 km NNW of Half Moon Bay 1957
5.1 7 km SW of Monte Sereno, California · 45 km SE of Half Moon Bay 1989
5.0 3 km SW of Los Gatos, California · 48 km SE of Half Moon Bay 1933

USGS ComCat, M5+ from 1900 to 2016. This is the record, not a forecast.

Nearest mapped faults

San Gregorio fault, 3 km from its surface trace
San Andreas fault, 9 km from its surface trace
Serra fault, 14 km from its surface trace

USGS Quaternary Fault and Fold Database. Near is not the same as on.

Nearby towns

Millbrae 15 km · Woodside 16 km · Pacifica 17 km · Portola Valley 19 km · Colma 24 km

If you felt one

Was that an earthquake? — checks what was recorded near you in the last hour
Report what you felt to USGS — reports go to USGS, not to us
Earthquakes in California, with the state's activity score

QuakeIndex does not issue warnings or forecasts. For earthquake early warning see ShakeAlert and the MyShake app.