QuakeIndex

Earthquake · reviewed by a seismologist

M 2.8ml

Earthquake near Tsaile, AZ

USGS: 5 km WNW of Tsaile, Arizona

8:55 am MDT, Jun 10, 2020 · · 14 km deep · released about 480 lb of TNT

10 km30 km60 km120 km N San Juan County 88 kmApache County 106 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
8:55 am MDT on 10 June 2020 ()
Where
6 km (4 mi) WNW of Tsaile, AZ · earthquakes near Tsaile
Magnitude
M 2.8 (ml)
Depth
14 km below the surface
Felt
no reports yet
Nearest
San Juan County, 88 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2232 days ago

A magnitude 2.8 earthquake was recorded 6 km (4 mi) WNW of Tsaile, AZ, at 8:55 am MDT on 10 June 2020 (14:55 UTC). This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

Earthquakes near other towns within 30 km: Lukachukai.

How big was it?

This earthquake released about 480 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 32,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 22,000× the energy of this one
  3. Around the size people start to feel M 3.0 2× the energy of this one
  4. This earthquake M 2.8 about 480 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 36.3242, -109.2771. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
San Juan County, NM 88 km (55 mi) ENE earthquakes near San Juan County
Apache County, AZ 106 km (66 mi) S earthquakes near Apache County
McKinley County, NM 124 km (77 mi) SE earthquakes near McKinley County
Montezuma County, CO 128 km (80 mi) NNE earthquakes near Montezuma County
Navajo County, AZ 140 km (87 mi) SW earthquakes near Navajo 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. 2.8 3 km NNW of Sawmill, Arizona
  2. 2.5 13 km NNE of Round Rock, Arizona
  3. 2.5 11 km NW of Many Farms, Arizona

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.