QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5ml

Earthquake near Sandusky, OH

No earthquake was likely felt in Sandusky in the 24 hours to 3:12 pm EST (20:12 UTC). The last one was M 3.0, 71 km (44 mi) NNW, at 10:32 am EDT on 26 April 2026, estimated intensity II (weak) in town; 342 felt reports to USGS. Every earthquake near Sandusky

This page: a magnitude 2.5 earthquake was recorded 27 km (17 mi) northwest of Sandusky, OH, at 7:46 am EST on 7 February 2016 (12:46 UTC), 5.0 km deep.

USGS: 6 km W of Put-in-Bay, Ohio

83 km (52 mi) SSE of Detroit, MI · 57 km (35 mi) E of Toledo, OH

7:46 am EST, Feb 7, 2016 · · 5.0 km deep · released about 170 lb of TNT

10 km30 km60 km120 km N Ottawa County 15 kmErie County 38 kmSandusky County 39 kmLucas County 48 kmMonroe County 57 kmHuron County 62 kmSeneca County 62 kmLorain County 64 kmWood County 69 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
7:46 am EST on 7 February 2016 ()
Where
27 km (17 mi) northwest of Sandusky, OH · earthquakes near Sandusky
Magnitude
M 2.5 (ml)
Depth
5.0 km below the surface
Felt
no reports yet
Nearest
Ottawa County, 15 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3859 days ago

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 46 km (29 mi) from the epicentre. In Sandusky, 27 km away, the estimate is intensity II (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: Port Clinton, Oak Harbor.

How big was it?

This earthquake released about 170 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.

  1. Mineral, Virginia 2011 M 5.8 89,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 63,000× the energy of this one
  3. Around the size people start to feel M 3.0 5.6× the energy of this one
  4. This earthquake M 2.5 about 170 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 41.6503, -82.8969. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Ottawa County, OH 15 km (9 mi) SW earthquakes near Ottawa County
Erie County, OH 38 km (24 mi) SE earthquakes near Erie County
Sandusky County, OH 39 km (24 mi) SSW earthquakes near Sandusky County
Lucas County, OH 48 km (30 mi) W earthquakes near Lucas County
Monroe County, MI 57 km (36 mi) WNW earthquakes near Monroe County
Huron County, OH 62 km (38 mi) SSE earthquakes near Huron County

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

Aftershocks so far

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

  1. 3.0 7 km SSE of Amherstburg, Canada
  2. 3.2 2 km SSE of Detroit Beach, Michigan

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.