QuakeIndex

Earthquakes in Toole County, Montana

← Earthquakes in Montana

Too few earthquakes here to say what is "normal"

Only 13 earthquakes of M1.5 or largerhave been recorded within 50 km in the 10 years of record we hold, and most weeks have none. A QuakeIndex score is a percentile against this place's own weeks — and when almost every week is empty, that number would just be reporting whether anything happened at all, dressed up as a percentile. So we do not publish one.

This is a statement about Toole County, Montana, not about our data: it is a quiet place. There have been none of M1.5 or larger in the last 7 days.

USGS catalogue · updated

The last 30 days

Aug 29 Sep 13 Sep 27
Each mark is a day's largest quake within range; its size is the magnitude. There is not yet enough history here to draw a normal range.

Live · last 7 days

Latest earthquakes within 50 km

None within 50 km in the latest snapshot we hold; the full 7 days load from USGS as this page opens.

Source USGS · snapshot of

Where this is

Centre 48.645, -111.733 — the Census internal point, from the US Census Bureau Gazetteer (2024). Activity is measured within 50 km of it.

Largest on record nearby

MagnitudeWhenWhere
M 2.3 13 km NNE of Santa Rita, Montana
M 2.3 18 km NNE of Santa Rita, Montana
M 2.0 12 km NNE of Santa Rita, Montana
M 2.0 16 km W of Sunburst, Montana
M 2.0 17 km W of Sunburst, Montana
M 1.9 26 km ESE of Shelby, Montana
M 1.9 24 km ESE of Shelby, Montana
M 1.8 11 km NNE of Santa Rita, Montana

From the QuakeIndex catalogue, built from the USGS FDSN event service · within 50 km of the centre above.

After an earthquake here