Earthquake near Millinocket, ME

USGS: 22 km W of Millinocket, Maine

5:30 am EDT, Jun 17, 2016 · 2016-06-17 09:30 UTC · 1.2 km deep · released about 5.4 lb of TNT

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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: 5:30 am EDT on 17 June 2016 (2016-06-17 09:30 UTC)
Where: 22 km (14 mi) W of Millinocket, ME · earthquakes near Millinocket
Magnitude: M 1.5 (ml)
Depth: 1.2 km below the surface
Felt: no reports yet
Nearest: Piscataquis County, 32 km NNW
Status: Reviewed by a seismologist

USGS · last changed by USGS 3689 days ago · we first saw it 3689 days ago

A magnitude 1.5 earthquake was recorded 22 km (14 mi) W of Millinocket, ME, at 5:30 am EDT on 17 June 2016 (09:30 UTC). This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 5.4 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

Mineral, Virginia 2011 M 5.8 2,800,000× the energy of this one
Magna, Utah 2020 M 5.7 2,000,000× the energy of this one
Around the size people start to feel M 3.0 180× the energy of this one
This earthquake M 1.5 about 5.4 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

Map loads when it scrolls into view

Epicentre 45.6403, -68.9922. Map © OpenStreetMap contributors.

Nearby places

Place	Distance	Direction from the epicentre
Piscataquis County, ME	32 km (20 mi)	NNW	earthquakes near Piscataquis County
Penobscot County, ME	36 km (22 mi)	SE	earthquakes near Penobscot County
Somerset County, ME	77 km (48 mi)	W	earthquakes near Somerset County
Aroostook County, ME	122 km (76 mi)	NNE	earthquakes near Aroostook County
Hancock County, ME	129 km (80 mi)	SSE	earthquakes near Hancock County
Washington County, ME	132 km (82 mi)	SE	earthquakes near Washington County

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

Aftershocks so far

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

1.5 15 km ENE of Greenville, Maine 23:03 UTC
1.5 20 km WSW of Millinocket, Maine 01:56 UTC
1.5 23 km WNW of Millinocket, Maine 20:59 UTC
2.5 35 km NW of Millinocket, Maine 01:56 UTC
1.9 3 km SW of Sebec, Maine 09:17 UTC
1.6 4 km NNE of Bowerbank, Maine 18:16 UTC
1.5 31 km W of Millinocket, Maine 21:30 UTC
1.5 24 km WNW of Millinocket, Maine 07:10 UTC
1.8 19 km SW of Millinocket, Maine 02:28 UTC
1.8 38 km WNW of Millinocket, Maine 11:23 UTC
1.8 Maine 10:59 UTC
1.6 Maine 11:21 UTC
1.6 34 km WNW of Millinocket, Maine 19:38 UTC
1.8 33 km WNW of Millinocket, Maine 09:16 UTC
1.9 0 km ENE of Sebec, Maine 08:27 UTC

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of 05:42 UTC. 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.