QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4mb_lg

Earthquake near Fostoria, OH

No earthquake was likely felt in Fostoria in the 24 hours to 3:14 pm EST (20:14 UTC). The last one was M 2.5, 44 km (27 mi) N, at 4:58 pm EDT on 18 March 2024, estimated intensity II (weak) in town; 8 felt reports to USGS. Every earthquake near Fostoria

This page: a magnitude 2.4 earthquake was recorded 6 km (4 mi) south-southwest of Fostoria, OH, at 3:30 am EST on 22 December 2022 (08:30 UTC), 9.9 km deep. 55 people have reported feeling it to USGS.

USGS: 5 km E of Arcadia, Ohio

3:30 am EST, Dec 22, 2022 · · 9.9 km deep · released about 120 lb of TNT

10 km30 km60 km120 km N Hancock County 22 kmSeneca County 27 kmWood County 31 kmWyandot County 32 kmSandusky County 38 kmHardin County 53 kmCrawford County 53 kmHenry County 57 kmPutnam County 58 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
3:30 am EST on 22 December 2022 ()
Where
6 km (4 mi) south-southwest of Fostoria, OH · earthquakes near Fostoria
Magnitude
M 2.4 (mb_lg)
Depth
9.9 km below the surface
Felt
55 reports · strongest reported intensity IV
Nearest
Hancock County, 22 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1352 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 Fostoria, 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: Findlay, Carey, North Baltimore, Tiffin, Bradner, McComb.

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 41.1090, -83.4530. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Hancock County, OH 22 km (13 mi) SW earthquakes near Hancock County
Seneca County, OH 27 km (17 mi) E earthquakes near Seneca County
Wood County, OH 31 km (19 mi) NNW earthquakes near Wood County
Wyandot County, OH 32 km (20 mi) SSE earthquakes near Wyandot County
Sandusky County, OH 38 km (23 mi) NE earthquakes near Sandusky County
Hardin County, OH 53 km (33 mi) SSW earthquakes near Hardin County

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

Aftershocks so far

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

  1. 2.3 4 km SSE of Walbridge, Ohio
  2. 2.5 4 km WSW of Millbury, Ohio
  3. 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.