Weak mag. 1.9 earthquake - 23 Km NE of Amboy, Washington, USA, on Monday, 8 Feb 2021 8:00 am (GMT -8) -
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Weak magnitude 1.9 earthquake at 1 km depth
8 Feb 16:04 UTC: First to report: USGS after 3 minutes.
8 Feb 16:35: Magnitude recalculated from 2.4 to 1.8. Hypocenter depth recalculated from 0.9 to 0.4 km (from 0.6 to 0.2 mi).
8 Feb 18:08: Magnitude recalculated from 1.8 to 1.9. Hypocenter depth recalculated from 0.4 to 0.6 km (from 0.2 to 0.4 mi).
8 Feb 16:35: Magnitude recalculated from 2.4 to 1.8. Hypocenter depth recalculated from 0.9 to 0.4 km (from 0.6 to 0.2 mi).
8 Feb 18:08: Magnitude recalculated from 1.8 to 1.9. Hypocenter depth recalculated from 0.4 to 0.6 km (from 0.2 to 0.4 mi).
Date & time: 8 Feb 2021 16:00:41 UTC -
Local time at epicenter: Monday, 8 Feb 2021 8:00 am (GMT -8)
Magnitude: 1.9
Depth: 0.6 km
Epicenter latitude / longitude: 46.04683°N / 122.2115°W
(Washington State, United States)Nearest volcano: Mount St. Helens (18 km / 11 mi)
Nearby towns and cities:
24 km (15 mi) NE of Amboy (pop: 1,610) --> See nearby quakes!
39 km (24 mi) NE of Battle Ground (Clark County) (pop: 19,400) --> See nearby quakes!
49 km (31 mi) NE of Five Corners (pop: 18,200) --> See nearby quakes!
57 km (35 mi) E of Longview (Cowlitz County) (pop: 36,800) --> See nearby quakes!
57 km (36 mi) NE of Vancouver (pop: 172,900) --> See nearby quakes!
63 km (39 mi) NNE of Gresham (Oregon) (pop: 110,600) --> See nearby quakes!
68 km (43 mi) NNE of Portland (Oregon) (pop: 632,300) --> See nearby quakes!
77 km (48 mi) NE of Beaverton (Oregon) (pop: 96,600) --> See nearby quakes!
81 km (50 mi) NNE of Tigard (Oregon) (pop: 51,300) --> See nearby quakes!
84 km (52 mi) NE of Hillsboro (Oregon) (pop: 102,300) --> See nearby quakes!
Weather at epicenter at time of quake:
Overcast Clouds
1.5°C (35 F), humidity: 99%, wind: 1 m/s (2 kts) from W
Primary data source: USGS (United States Geological Survey)Overcast Clouds
1.5°C (35 F), humidity: 99%, wind: 1 m/s (2 kts) from WEstimated released energy: 4.5 x 107 joules (12.4 kilowatt hours) More info
Data for the same earthquake reported by different agencies
Info: The more agencies report about the same quake and post similar data, the more confidence you can have in the data. It takes normally up to a few hours until earthquake parameters are calculated with near-optimum precision.
| Magnitude | Depth | Location | Source |
| 1.9 | 0.6 km | 23 Km NE of Amboy, Washington, USA | USGS |
| 2.4 | 1 km | WASHINGTON, USA | EMSC |
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
At magnitude 1.9, such a quake wouldn't normally be felt by people, but could be recorded instrumentally.
