Quake info: Minor mag. 1.6 earthquake – Explosion – 7 Km ENE of Prescott, Oregon, USA, on Wednesday, 31 Mar 2021 4:29 pm (GMT -7)
Minor magnitude 1.6 earthquake at 1 km depth
1 Apr 00:52 UTC: First to report: USGS after 1 hour and 23 minutes.
I felt this quake
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Date & time: 31 Mar 2021 23:29:12 UTC –
Local time at epicenter: Wednesday, 31 Mar 2021 4:29 pm (GMT -7)
Magnitude: 1.6
Depth: 0.5 km
Epicenter latitude / longitude: 46.0755°N / 122.8015°W 
(Oregon, United States)
Nearest volcano: Mount St. Helens (50 km / 31 mi)
Nearby towns and cities:
8 km (5 mi) NNE of Kalama (Washington) (pop: 2,400) –> See nearby quakes!
11 km (7 mi) SE of Kelso (Cowlitz County, Washington) (pop: 11,900) –> See nearby quakes!
13 km (8 mi) ESE of Longview (Cowlitz County, Washington) (pop: 36,800) –> See nearby quakes!
24 km (15 mi) N of Saint Helens (pop: 12,900) –> See nearby quakes!
39 km (24 mi) NNW of Battle Ground (Clark County, Washington) (pop: 19,400) –> See nearby quakes!
50 km (31 mi) NNW of Vancouver (Washington) (pop: 172,900) –> See nearby quakes!
62 km (39 mi) N of Portland (pop: 632,300) –> See nearby quakes!
63 km (39 mi) NNE of Hillsboro (pop: 102,300) –> See nearby quakes!
65 km (41 mi) N of Beaverton (pop: 96,600) –> See nearby quakes!
70 km (44 mi) NNW of Gresham (pop: 110,600) –> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 1.6 x 107 joules (4.4 kilowatt hours) More info
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Data for the same earthquake reported by different agencies
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| Magnitude | Depth | Location | Source |
| 1.6 | 0.5 km | Explosion – 7 Km ENE of Prescott, Oregon, USA | USGS |
User reports for this quake (1)
At magnitude 1.6, such a quake wouldn’t normally be felt by people, but could be recorded instrumentally.
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Oak Grove, Oregon (74.2 km S of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / 5-10 s : I was on my bed and felt it shaking. There were no heavy trucks or anything else that I could identify as the cause. It last longer than a truck passing would have.
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Earlier earthquakes in the same area since 1900
-
Date / time UTC
| Mag |
Depth
|
Age
|
Distance
| Details
-
28 Feb 2001 18:54
| 6.8 |
52km / 32mi
|
20 years ago
|
120km / 74mi
| 15 mi SW of Tacoma, Pierce County, Washington State, USA
-
13 Apr 1949 19:55
| 6.8 |
70km / 43mi
|
72 years ago
|
122km / 76mi
| Unk County, 0.7 mi W of Steilacoom, Pierce County, Washington, USA
-
29 Apr 1965 15:28
| 6.7 |
59km / 37mi
|
56 years ago
|
152km / 95mi
| 1.1 mi E of DesMoines, King County, Washington State, USA
-
03 Jul 1999 01:43
| 5.8 |
40km / 25mi
|
22 years ago
|
122km / 76mi
| Grays Harbor County, 49 mi W of Tacoma, Pierce County, Washington State, USA
-
15 Feb 1946 03:17
| 5.8 |
18km / 11.2mi
|
75 years ago
|
148km / 92mi
| 4 mi NW of Canterwood, Pierce County, Washington State, USA
-
18 May 1980 15:32
| 5.7 |
1.5km / 0.9mi
|
41 years ago
|
50km / 31mi
| Skamania County, 45 mi NE of Vancouver, Clark County, Washington State, USA
-
25 Mar 1993 13:34
| 5.6 |
19.6km / 12.2mi
|
28 years ago
|
117km / 73mi
| Clackamas County, 22 mi E of Salem, Marion County, Oregon, USA
-
14 Feb 1981 06:09
| 5.2 |
6km / 3.7mi
|
40 years ago
|
53km / 33mi
| Skamania County, 53 mi N of Vancouver, Clark County, Washington State, USA
-
14 Apr 1980 13:49
| 5.2 |
0.5km / 0.3mi
|
41 years ago
|
49km / 30mi
| Skamania County, 45 mi NE of Vancouver, Clark County, Washington State, USA
-
06 Nov 1962 03:36
| 5.2 |
16km / 9.9mi
|
58 years ago
|
51km / 32mi
| 2.1 mi SW of Orchards, Clark County, Washington State, USA
-
20 Apr 1980 19:19
| 5.1 |
0.6km / 0.4mi
|
41 years ago
|
50km / 31mi
| Skamania County, 46 mi NE of Vancouver, Clark County, Washington State, USA
-
08 Apr 1980 19:29
| 5.1 |
unknown
|
41 years ago
|
49km / 30mi
| Skamania County, 45 mi NE of Vancouver, Clark County, Washington State, USA
-
07 Apr 1980 15:05
| 5.1 |
2.7km / 1.7mi
|
41 years ago
|
50km / 31mi
| Skamania County, 46 mi NE of Vancouver, Clark County, Washington State, USA
-
06 Apr 1980 06:58
| 5.1 |
unknown
|
41 years ago
|
50km / 31mi
| Skamania County, 46 mi NE of Vancouver, Clark County, Washington State, USA
-
03 Apr 1980 09:35
| 5.1 |
unknown
|
41 years ago
|
51km / 32mi
| Skamania County, 47 mi NE of Vancouver, Clark County, Washington State, USA
-
17 Sep 1961 15:55
| 5.1 |
7km / 4.3mi
|
60 years ago
|
53km / 33mi
| Skamania County, 17 mi NE of Yacolt, Clark County, Washington State, USA
-
27 Oct 1940 22:29
| 5.1 |
unknown
|
80 years ago
|
133km / 83mi
| 14 mi W of Shelton, Mason County, Washington State, USA
-
10 Jun 2001 13:19
| 5.0 |
40km / 25mi
|
20 years ago
|
133km / 82mi
| Grays Harbor County, 50 mi W of Tacoma, Pierce County, Washington State, USA
-
29 Jan 1995 03:11
| 5.0 |
15.4km / 9.6mi
|
26 years ago
|
150km / 93mi
| County, Washington, 10 mi N of Tacoma, Pierce County, Washington State, USA
-
28 May 1981 09:10
| 5.0 |
2.1km / 1.3mi
|
40 years ago
|
119km / 74mi
| Lewis County, 43 mi W of Yakima, Washington State, USA
-
25 Apr 1980 23:20
| 5.0 |
5km / 3.1mi
|
41 years ago
|
52km / 32mi
| Skamania County, 49 mi NE of Vancouver, Clark County, Washington State, USA
-
22 Apr 1980 19:28
| 5.0 |
unknown
|
41 years ago
|
50km / 31mi
| Skamania County, 45 mi NE of Vancouver, Clark County, Washington State, USA
-
18 Apr 1980 21:16
| 5.0 |
unknown
|
41 years ago
|
50km / 31mi
| Skamania County, 46 mi NE of Vancouver, Clark County, Washington State, USA
-
17 Apr 1980 17:43
| 5.0 |
unknown
|
41 years ago
|
50km / 31mi
| Skamania County, 46 mi NE of Vancouver, Clark County, Washington State, USA
-
15 Apr 1980 17:54
| 5.0 |
unknown
|
41 years ago
|
50km / 31mi
| Skamania County, 46 mi NE of Vancouver, Clark County, Washington State, USA
-
11 Apr 1980 23:51
| 5.0 |
unknown
|
41 years ago
|
51km / 32mi
| Skamania County, 46 mi NE of Vancouver, Clark County, Washington State, USA
-
03 Apr 1980 23:57
| 5.0 |
unknown
|
41 years ago
|
50km / 31mi
| Skamania County, 46 mi NE of Vancouver, Clark County, Washington State, USA
-
16 Dec 1953 04:32
| 5.0 |
unknown
|
67 years ago
|
64km / 40mi
| 2 mi SW of Portland, Multnomah County, Oregon, USA
-
25 Mar 2021 10:42
| 2.3 |
8.1km / 5mi
|
7 days ago
|
48km / 30mi
| 28 mi NE of Vancouver, Clark County, Washington State, USA
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