Every recorded earthquake near

Earthquakes near Boulder, MT

M 2.5

Latest: 4:00 am MST on 20 February 2024 · 26 km (16 mi) E of Boulder, MT

The most recent earthquake of M2.5 or more near Boulder was M 2.5, 26 km (16 mi) E of Boulder, MT, at 4:00 am MST on 20 February 2024. 3 smaller earthquakes have been recorded nearby since; the newest is first in the list below.

Within 30 km since 2016: 32 earthquakes of M1.5 or more
In the last 12 months: 1
Largest since 2016: M 3.4 on 29 October 2021, 17 km (11 mi) S of Boulder, MT
Reported felt: 4 of them have felt reports to USGS

USGS · feed checked 30 seconds ago · newest earthquake in our database 8 minutes ago · this page 02:07 UTC

The latest 32

2.4 27 km (17 mi) NNE of Boulder, MT May 20, 2026
1:12 am MDT
1.9 15 km (10 mi) ESE of Boulder, MT Jun 4, 2024
3:56 pm MDT
2.2 28 km (17 mi) E of Boulder, MT Feb 22, 2024
1:46 am MST
2.5 26 km (16 mi) E of Boulder, MT Feb 20, 2024
4:00 am MST
2.4 27 km (16 mi) E of Boulder, MT Jul 30, 2023
6:40 pm MDT
1.5 18 km (11 mi) SSW of Boulder, MT Jun 3, 2023
4:41 pm MDT
2.0 29 km (18 mi) ESE of Boulder, MT Apr 11, 2023
3:41 pm MDT
1.7 7 km (5 mi) NE of Boulder, MT Jul 30, 2022
4:57 pm MDT
2.1 13 km (8 mi) ENE of Boulder, MT Jul 30, 2022
3:33 am MDT
1.6 11 km (7 mi) NE of Boulder, MT Jul 30, 2022
2:28 am MDT
1.7 20 km (12 mi) SSW of Boulder, MT Oct 29, 2021
7:15 am MDT
3.4 17 km (11 mi) S of Boulder, MT · felt by 9 Oct 29, 2021
3:19 am MDT
1.6 13 km (8 mi) E of Boulder, MT Sep 25, 2021
9:55 pm MDT
1.6 20 km (12 mi) ESE of Boulder, MT Jul 3, 2021
1:14 pm MDT
1.9 29 km (18 mi) ESE of Boulder, MT Apr 25, 2021
11:05 am MDT
1.9 29 km (18 mi) ESE of Boulder, MT Apr 25, 2021
8:23 am MDT
1.6 30 km (19 mi) ESE of Boulder, MT Apr 25, 2021
2:33 am MDT
1.8 14 km (9 mi) N of Boulder, MT Feb 15, 2021
12:21 am MST
1.5 28 km (18 mi) SE of Boulder, MT Dec 30, 2020
9:16 am MST
2.2 6 km (3 mi) ENE of Boulder, MT Apr 22, 2020
6:17 am MDT
1.7 5 km (3 mi) ENE of Boulder, MT Apr 22, 2020
4:46 am MDT
1.5 6 km (4 mi) ENE of Boulder, MT Apr 22, 2020
12:47 am MDT
2.7 5 km (3 mi) ENE of Boulder, MT · felt by 4 Apr 22, 2020
12:40 am MDT
2.6 5 km (3 mi) ENE of Boulder, MT · felt by 2 Apr 19, 2020
11:38 am MDT
2.4 8 km (5 mi) ENE of Boulder, MT Apr 17, 2020
7:02 pm MDT
2.8 4 km (2 mi) NE of Boulder, MT · felt by 9 Apr 17, 2020
7:00 pm MDT
2.1 6 km (4 mi) ENE of Boulder, MT Apr 16, 2020
9:51 pm MDT
1.5 12 km (8 mi) ESE of Boulder, MT May 27, 2019
12:00 pm MDT
2.1 28 km (17 mi) ESE of Boulder, MT Apr 29, 2019
8:17 pm MDT
1.8 in Boulder, MT Aug 31, 2018
11:12 pm MDT
2.6 20 km (12 mi) ESE of Boulder, MT Jul 17, 2018
2:44 pm MDT
1.7 26 km (16 mi) N of Boulder, MT Mar 20, 2017
7:49 am MDT

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 Boulder time. Distances are from the town centre. Quakes USGS named after Boulder are listed even when they are further out.

On the map

Map loads when it scrolls into view

The white circle is Boulder; dots are the 32 most recent earthquakes within 30 km. Map © OpenStreetMap contributors.

Before 2016

The USGS record since 1900 lists 4 earthquakes of M5 or more within 50 km of Boulder:

5.9 2 km ENE of Helena, Montana · 41 km NNE of Boulder 1935
5.9 The 1935 Helena, Montana Earthquakes (Largest Aftershock) · 40 km NNE of Boulder 1935
5.4 Near Butte, Montana · 39 km SW of Boulder 1910
5.0 2 km ENE of Helena, Montana · 41 km NNE of Boulder 1935

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

Nearby towns

Clancy 27 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 Montana, with the state's activity score

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