Earthquake · reviewed by a seismologist
M 2.5md
Earthquake near Mascot, TN
USGS: 8 km E of Mascot, Tennessee
29 km (18 mi) ENE of Knoxville, TN
- When
- 12:17 am EDT on 2 April 2018 ()
- Where
- 8 km (5 mi) E of Mascot, TN · earthquakes near Mascot
- Magnitude
- M 2.5 (md)
- Depth
- 20 km below the surface
- Felt
- no reports yet
- Nearest
- Jefferson County, 19 km E
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 3017 days ago
A magnitude 2.5 earthquake was recorded 8 km (5 mi) E of Mascot, TN, at 12:17 am EDT on 2 April 2018 (04:17 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: New Market, Blaine, Jefferson City, Luttrell, Plainview, Condon.
How big was it?
This earthquake released about 190 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.
- Mineral, Virginia 2011 M 5.8 78,000× the energy of this one
- Magna, Utah 2020 M 5.7 55,000× the energy of this one
- Around the size people start to feel M 3.0 4.9× the energy of this one
- This earthquake M 2.5 about 190 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 36.0700, -83.6535. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Jefferson County, TN | 19 km (12 mi) | E | earthquakes near Jefferson County |
| Grainger County, TN | 26 km (16 mi) | NNE | earthquakes near Grainger County |
| Knox County, TN | 27 km (17 mi) | WSW | earthquakes near Knox County |
| Union County, TN | 29 km (18 mi) | NW | earthquakes near Union County |
| Sevier County, TN | 33 km (21 mi) | SSE | earthquakes near Sevier County |
| Hamblen County, TN | 39 km (24 mi) | ENE | earthquakes near Hamblen County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
50 earthquakes have been recorded within 50 km since this one.
- 2.1 8 km NNW of New Market, Tennessee
- 2.5 11 km WNW of Rutledge, Tennessee
- 2.5 5 km ENE of Rutledge, Tennessee
- 2.0 7 km NE of Rockford, Tennessee
- 2.1 7 km NNW of New Market, Tennessee
- 1.8 6 km NW of Mascot, Tennessee
- 1.9 2 km S of Knoxville, Tennessee
- 2.2 4 km E of Maryville, Tennessee
- 2.2 5 km ENE of Wildwood, Tennessee
- 2.3 1 km ESE of Farragut, Tennessee
- 2.2 3 km SSW of Garland, Tennessee
- 2.4 0 km SSW of Rockford, Tennessee
- 1.7 5 km WNW of Sevierville, Tennessee
- 2.2 5 km W of Sevierville, Tennessee
- 2.6 2 km SSE of Mascot, Tennessee
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
- The official USGS event page — the source of record for every value above
- Did you feel it? Report it to USGS — reports go to USGS, not to us
- ShakeMap for this event, when USGS has produced one
QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.