QuakeIndex

Every recorded earthquake within 30 km

Earthquakes near Alpena, MI

No earthquake was likely felt in Alpena in the 24 hours to 11:34 am EST (16:34 UTC). The last one was M 2.4, 7 km (4 mi) NE, at 10:58 am EDT on 7 May 2018, estimated intensity III (weak) in town.

M 2.4

Latest: 10:58 am EDT on 7 May 2018 · 7 km (4 mi) NE of Alpena, MI

The most recent earthquake near Alpena was M 2.4, 7 km (4 mi) NE of Alpena, MI, at 10:58 am EDT on 7 May 2018. The estimated shaking in Alpena was intensity III (weak), felt by some people at rest indoors.

No earthquake of M1.5 or more was recorded within 30 km (19 mi) of Alpena in the last 24 hours.

Last 24 hours
0
Last 7 days
0
Last 30 days
0 · since 2016, about one every 5 years
Last 12 months
0
Since 2016
2 earthquakes of M1.5 or more within 30 km
Largest since 2016
M 2.4 on 7 May 2018, 7 km (4 mi) NE of Alpena, MI
Reported felt
0 of them have felt reports to USGS

USGS · feed checked · newest earthquake in our database · this page · counts are earthquakes of M1.5 or more within 30 km (19 mi) of the town centre; shaking is estimated for the town centre with the intensity equation USGS Did You Feel It? uses

If you felt one

QuakeIndex does not issue warnings or forecasts. For earthquake early warning see ShakeAlert and the MyShake app.

The last 30 days

Oct 14 Oct 29 Nov 12
Each mark is a day's largest quake within range; its size is the magnitude. Too few days here have any earthquake at all to draw a normal range.

The latest 2

  1. 2.4 7 km (4 mi) NE of Alpena, MI
  2. 2.4 5 km (3 mi) ENE of Alpena, MI

From the QuakeIndex database, which reads the USGS feed every 30 seconds and holds the USGS catalogue for the US from 2016 (M1.5+). Times are Alpena time. Distances are from the town centre. Quakes USGS named after Alpena are listed even when they are further out.

Show these earthquakes on your own site: a free card with the latest quakes near Alpena, for a local news site, school or neighborhood page.

On the map

The white circle is Alpena; dots are the 2 most recent earthquakes within 30 km. Map © OpenStreetMap contributors.

Estimated shaking in Alpena

The strongest shaking in Alpena from a quake since 2016 is estimated at intensity III (weak), from the M 2.4 on 18 December 2017, 5 km away. Intensity II and III are felt by some people at rest indoors; IV by most people indoors; V and above wakes sleepers and moves objects.

MagnitudeWhenDistanceShaking in Alpena (est.)
M 2.4 5 kmIII · Weak
M 2.4 7 kmIII · Weak

An estimate for the town centre from magnitude, depth and distance, with the intensity equation USGS Did You Feel It? uses (Atkinson & Wald, 2007), on the Modified Mercalli scale. All 2 reach intensity II or more in town, where people at rest start to notice. Ground conditions change it street by street. It describes the past, not a hazard.

Before 2016

The USGS record since 1900 lists no earthquake of M5 or more within 50 km of Alpena.

USGS ComCat, M5+ from 1900 to 2015. This is the record, not a forecast.

Be ready

Earthquakes cannot be predicted, here or anywhere, so the useful step is the one taken beforehand. The advice below is from the agencies responsible for it.

QuakeIndex does not issue warnings or forecasts. For earthquake early warning see ShakeAlert and the MyShake app.