M1.9 earthquake 17 km N of Howell, Utah

Magnitude

1.9 (Md, duration), micro

Magnitude from

University of Utah Seismograph Stations

Local time

Mon, Dec 17, 1984, 11:48 PM MST

UTC

1984-12-18 06:48:46 UTC

Depth

6.1 km (3.8 mi), shallow

Epicenter

41.949° N, 112.465° W

Region

Idaho

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.5 km horizontally, 0.8 km in depth

Depth from

From location

Station coverage gap

115°

Stations used

21

• Riverside, UtahPopulation 760. Forecast32 kmNW
• Smithfield, UtahPopulation 10,782. Forecast54 kmWNW
• Salt Lake City, UtahPopulation 215,548. Forecast141 kmNNW

After

1. 2.118 km ENE of Snowville, UtahThu, Dec 20, 3:41 AM MST · 15262 days ago · 8 km deep · 10 km away
2. 1.912 km ESE of Providence, UtahSun, Dec 23, 3:25 PM MST · 15259 days ago · 0 km deep · 72 km away
3. 2.08 km NE of Huntsville, UtahSun, Dec 30, 7:52 PM MST · 15252 days ago · 12 km deep · 95 km away
4. 1.63 km WNW of Deweyville, UtahSat, Jan 5, 12:30 PM MST · 15246 days ago · 4 km deep · 38 km away
5. 1.810 km W of Bennington, IdahoThu, Jan 10, 9:26 AM MST · 15241 days ago · 3 km deep · 98 km away
6. 1.616 km NNW of Howell, UtahThu, Jan 24, 3:28 AM MST · 15227 days ago · 2 km deep · 5 km away
7. 1.614 km NNW of Howell, UtahThu, Jan 24, 6:17 AM MST · 15227 days ago · 0 km deep · 7 km away
8. 1.613 km NNW of Howell, UtahFri, Jan 25, 5:12 AM MST · 15226 days ago · 0 km deep · 8 km away
9. 2.316 km N of Howell, UtahFri, Jan 25, 2:44 PM MST · 15226 days ago · 3 km deep · 0 km away
10. 2.712 km NNW of Howell, UtahSat, Jan 26, 8:08 AM MST · 15225 days ago · 4 km deep · 8 km away
11. 3.012 km NW of Howell, UtahSun, Jan 27, 3:46 AM MST · 15224 days ago · 4 km deep · 9 km away
12. 1.514 km NNW of Howell, UtahSun, Jan 27, 8:31 AM MST · 15224 days ago · 1 km deep · 8 km away
13. 2.511 km NW of Howell, UtahTue, Jan 29, 9:23 AM MST · 15222 days ago · 3 km deep · 10 km away
14. 1.63 km NE of Oxford, IdahoThu, Jan 31, 1:16 PM MST · 15220 days ago · 1 km deep · 54 km away
15. 2.113 km W of Portage, UtahMon, Feb 4, 5:50 PM MST · 15216 days ago · 5 km deep · 5 km away
16. 1.614 km W of Portage, UtahTue, Feb 5, 4:14 AM MST · 15215 days ago · 4 km deep · 5 km away
17. 2.013 km W of Portage, UtahThu, Feb 7, 8:18 AM MST · 15213 days ago · 6 km deep · 6 km away

Before

1. 1.619 km ENE of Snowville, UtahSun, Dec 16, 3:20 AM MST · 15266 days ago · 7 km deep · 11 km away
2. 1.818 km ENE of Snowville, UtahSun, Dec 16, 2:32 AM MST · 15266 days ago · 2 km deep · 10 km away
3. 1.914 km W of Georgetown, IdahoWed, Dec 12, 1:41 AM MST · 15270 days ago · 0 km deep · 94 km away
4. 2.512 km WSW of Bennington, IdahoSun, Dec 9, 4:56 AM MST · 15273 days ago · -1 km deep · 94 km away
5. 2.711 km WSW of Bennington, IdahoSat, Dec 8, 2:41 AM MST · 15274 days ago · -3 km deep · 95 km away
6. 1.5UtahWed, Nov 28, 10:16 PM MST · 15284 days ago · 1 km deep · 8 km away
7. 1.512 km SSE of Snowville, UtahThu, Nov 22, 11:38 AM MST · 15290 days ago · 1 km deep · 18 km away

From the USGS Earthquake Hazards Program and its partner networks, event uu50018015. Read Sat, Oct 3, 2026, 4:48 PM UTC.