Earthquake · reviewed by a seismologist
M 2.5ml
Earthquake near Summit Park, UT
Yes. A magnitude 2.5 earthquake was recorded in Summit Park, UT, at 1:30 pm MDT on 17 October 2026 (19:30 UTC), 8.4 km deep. 3 people have reported feeling it to USGS.
USGS: 1 km ENE of Summit Park, Utah
28 km (18 mi) E of Salt Lake City, UT · 21 km (13 mi) ENE of Millcreek, UT
- When
- 1:30 pm MDT on 17 October 2026 ()
- Where
- in Summit Park, UT · earthquakes near Summit Park
- Magnitude
- M 2.5 (ml)
- Depth
- 8.4 km below the surface
- Felt
- 3 reports · strongest reported intensity III
- Nearest
- Salt Lake County, 29 km WSW
- Nearest mapped fault
- Main Canyon fault, 7 km from its surface trace — near is not the same as on
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 2 hours ago
Earthquake alerts for Summit Park, UT
Get a notification in this browser when USGS records an earthquake near Summit Park, UT. No account or email needed.
Alerts are on for .
Not a warning. An alert comes after USGS publishes a quake, usually minutes after the shaking. For early warning use ShakeAlert, through your phone's Wireless Emergency Alerts or the MyShake app.
This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.
At this magnitude and depth, people at rest would likely notice it out to about 21 km (13 mi) from the epicentre. Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.
Likely felt in: Summit Park in town, intensity III · East Millcreek 19 km, intensity II · Canyon Rim 20 km, intensity II · Holladay 21 km, intensity II. Estimated for each town centre; each link is that town's own record.
How big was it?
This earthquake released about 190 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 78,000× the energy of this one
- Magna, Utah 2020 M 5.7 55,000× the energy of this one
- Around the size people start to feel M 3.0 4.9× the energy of this one
- This earthquake M 2.5 about 190 lb of TNT
Energy from the Gutenberg–Richter relation (log10E = 1.5M + 4.8), rounded to two figures; bar length is magnitude, which is already a logarithm of energy. Magnitudes of past earthquakes from the USGS catalogue.
For this area
The largest earthquake within 50 km since 2016 was M 5.7 on 2020-03-18 — about 55,000 times the energy of this one.
Before 2016, the USGS record lists 2 earthquakes of M5 or more within 50 km:
- 5.3 Near Salt Lake City, Utah · 18 km WSW of this epicentre
- 5.0 1 km NE of Magna, Utah · 42 km W of this epicentre
Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.
Where
Epicentre 40.7485, -111.5965. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Salt Lake County, UT | 29 km (18 mi) | WSW | earthquakes near Salt Lake County |
| Morgan County, UT | 38 km (24 mi) | N | earthquakes near Morgan County |
| Summit County, UT | 55 km (34 mi) | ENE | earthquakes near Summit County |
| Wasatch County, UT | 59 km (37 mi) | SE | earthquakes near Wasatch County |
| Davis County, UT | 60 km (37 mi) | WNW | earthquakes near Davis County |
| Weber County, UT | 63 km (39 mi) | NNW | earthquakes near Weber County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
No further earthquakes have been recorded within 50 km since this one.
Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of . QuakeIndex does not forecast aftershocks. When USGS issues an operational aftershock forecast it appears on the USGS event page.
Revisions
USGS refines a solution as more stations report. Every change we have seen is listed here.
| What changed | From | To | When |
|---|---|---|---|
| felt reports | 2 | 3 | |
| reported intensity | 3.1 | 3.4 | |
| felt reports | 1 | 2 | |
| review status | automatic | reviewed | |
| location | 1 km E of Summit Park, Utah | 1 km ENE of Summit Park, Utah | |
| longitude | -111.6 | -111.6 | |
| latitude | 40.74 | 40.75 | |
| depth | 6.67 | 8.38 | |
| magnitude | 2.53 | 2.54 | |
| reported intensity | not reported | 3.1 | |
| felt reports | not reported | 1 |
On USGS
- The official USGS event page — the source of record for every value above
- Did you feel it? Report it to USGS — reports go to USGS, not to us
- ShakeMap for this event, when USGS has produced one
QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.