All earthquakes

Idaho earthquakes

5 earthquakes of magnitude 2.5 or more were located in Idaho in the past 30 days: 0 in the past week and 0 in the past 24 hours. The largest: M3.3 23 km NW of Stanley, Idaho, Sep 6, 9:35 AM MDT. 2 smaller quakes were recorded in the past 7 days.

From the USGS, checked Sun, Sep 20, 2026, 4:26 PM MDT. Times are local to each quake.

Map

Where every quake below was located in Idaho. Select one for its page.

Open the live map with earthquakes

Past 30 days

Magnitude 2.5 and up, newest first.

Smaller quakes, past 7 days

Under magnitude 2.5, which few people feel.

Largest on record in Idaho

The 25 largest in the USGS catalog since 1900, of magnitude 3 and up. Older magnitudes are estimates from historical accounts and early instruments.

Mag.DateWhereDepth
6.9Oct 28, 1983The 1983 Borah Peak Earthquake, Idaho10 km
6.5Mar 31, 2020Stanley, Idaho12 km
6.1Jul 12, 194437 km N of Stanley, Idaho10 km
6.1Mar 27, 197517 km NE of Snowville, Utah5 km
6.0Feb 13, 194544 km NNW of Stanley, Idaho10 km
5.6Aug 22, 198418 km ESE of Challis, Idaho10 km
5.5Nov 11, 1905Near Shoshone, Idaho
5.5Oct 29, 198322 km E of Clayton, Idaho10 km
5.4Nov 18, 193715 km S of Oakley, Idaho
5.4Oct 28, 198329 km NW of Mackay, Idaho7 km
5.4Oct 29, 198323 km E of Clayton, Idaho9 km
5.3May 12, 1916Western Idaho
5.3Apr 21, 200129 km WSW of Freedom, Idaho1 km
5.3Sep 2, 201712 km E of Soda Springs, Idaho10 km
5.1Sep 8, 19849 km SE of Challis, Idaho10 km
5.0Jan 3, 20159 km E of Challis, Idaho9 km
5.0Sep 10, 20179 km NNW of Georgetown, Idaho10 km
4.9Sep 10, 196319 km WSW of Clayton, Idaho8 km
4.9Apr 26, 196922 km S of Clayton, Idaho18 km
4.9Jul 14, 198813 km ESE of Challis, Idaho5 km
4.9Feb 26, 202410 km N of Smiths Ferry, Idaho12 km
4.8Jan 27, 196312 km SW of Clayton, Idaho11 km
4.8Jan 10, 198839 km NNW of Challis, Idaho5 km
4.8Jun 7, 199418 km E of Challis, Idaho5 km
4.8Apr 12, 201415 km NNW of Challis, Idaho4 km

By year

Every year the USGS catalog covers.

What this means

Magnitude measures the energy a quake releases: each step up is about 32 times more energy, so an M6 releases about a thousand times the energy of an M4. Intensity measures the shaking at one place, which depends on the distance, the depth and the ground. One quake has one magnitude and many intensities.

The Modified Mercalli intensity scale
IntensityShakingWhat people notice
INot feltRecorded by instruments only.
II to IIIWeakFelt by a few people at rest, mostly on upper floors; hanging objects may swing.
IVLightFelt indoors by many. Dishes, windows and doors rattle; like a heavy truck passing.
VModerateFelt by nearly everyone; sleepers wake. Some dishes break and unstable objects tip over.
VIStrongFelt by all; heavy furniture moves, plaster cracks. Damage is slight.
VIIVery strongDamage slight to moderate in ordinary buildings, considerable in poorly built ones.
VIIISevereConsiderable damage in ordinary buildings, with partial collapse; chimneys and walls fall.
IX and upViolent to extremeHeavy damage even in well-designed buildings; many shifted off foundations.

Did I just feel an earthquake?

A quake appears in these lists within minutes: a few for the US, up to twenty for a quake abroad. Search your town above, or open your state. If it was a quake, tell the USGS through its Did You Feel It? form. If shaking starts: drop, cover and hold on; stay indoors until it stops; near the coast, move to high ground after strong or long shaking without waiting for a warning.

By state

Every state, with the quakes of magnitude 2.5 or more located there in the past 30 days. Each state page adds the smaller quakes of the past week and its largest on record.

Sources

Earthquakes, magnitudes, depths, shaking estimates and felt reports from the U.S. Geological Survey Earthquake Hazards Program, read from its live feeds and its catalog back to 1900. Tsunami messages from NOAA’s tsunami warning centers.