QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4ml

Earthquake near Luna Pier, MI

No earthquake was likely felt in Luna Pier in the 24 hours to 3:26 pm EST (20:26 UTC). The last one was M 2.7, 31 km (19 mi) N, at 5:32 pm EDT on 4 May 2026, estimated intensity II (weak) in town; 222 felt reports to USGS. Every earthquake near Luna Pier

This page: a magnitude 2.4 earthquake was recorded 6 km (4 mi) west of Luna Pier, MI, at 12:49 pm EDT on 11 July 2022 (16:49 UTC), 5.0 km deep. 39 people have reported feeling it to USGS.

USGS: 5 km W of Luna Pier, Michigan

18 km (11 mi) NNE of Toledo, OH

12:49 pm EDT, Jul 11, 2022 · · 5.0 km deep · released about 120 lb of TNT

10 km30 km60 km120 km N Monroe County 11 kmLucas County 15 kmLenawee County 47 kmOttawa County 51 kmWood County 51 kmWashtenaw County 56 kmWayne County 56 kmFulton County 56 kmSandusky County 60 km
Distance rings around the epicentre, with the nearest towns at their true direction and later quakes as coloured dots. Not a shaking map — see the USGS ShakeMap for that.
When
12:49 pm EDT on 11 July 2022 ()
Where
6 km (4 mi) west of Luna Pier, MI · earthquakes near Luna Pier
Magnitude
M 2.4 (ml)
Depth
5.0 km below the surface
Felt
39 reports · strongest reported intensity III
Nearest
Monroe County, 11 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 964 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

At this magnitude and depth, people at rest would likely notice it out to about 41 km (25 mi) from the epicentre. In Luna Pier, 6 km away, the estimate is intensity III (weak). 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.

Earthquakes near other towns within 30 km: Temperance, Lambertville, South Monroe, West Monroe, Monroe, Toledo.

How big was it?

This earthquake released about 120 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 130,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 89,000× the energy of this one
  3. Around the size people start to feel M 3.0 7.9× the energy of this one
  4. This earthquake M 2.4 about 120 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

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

Before 2016, the USGS record since 1900 lists no earthquake of M5 or more within 50 km.

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 41.8158, -83.5123. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Monroe County, MI 11 km (7 mi) N earthquakes near Monroe County
Lucas County, OH 15 km (9 mi) SSE earthquakes near Lucas County
Lenawee County, MI 47 km (29 mi) W earthquakes near Lenawee County
Ottawa County, OH 51 km (32 mi) SE earthquakes near Ottawa County
Wood County, OH 51 km (32 mi) S earthquakes near Wood County
Washtenaw County, MI 56 km (35 mi) NNW earthquakes near Washtenaw County

Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.

Aftershocks so far

5 earthquakes have been recorded within 50 km since this one.

  1. 2.7 8 km N of Maybee, Michigan
  2. 3.0 7 km SSE of Amherstburg, Canada
  3. 2.3 4 km SSE of Walbridge, Ohio
  4. 2.5 4 km WSW of Millbury, Ohio
  5. 2.6 3 km SSE of Walbridge, Ohio

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.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.