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Minor mag. 1.0 earthquake - 18 Km SE of Cascadia, Oregon, USA, on Tuesday, April 27, 2021 at 00:21 GMT

Minor mag. 1.0 earthquake - 18 Km SE of Cascadia, Oregon, USA, on Tuesday, April 27, 2021 at 00:21 GMT Minor mag. 1.0 earthquake - 18 Km SE of Cascadia, Oregon, USA, on Tuesday, April 27, 2021 at 00:21 GMT

Minor magnitude 1.0 earthquake at 7 km depth

27 Apr 19:04 UTC: First to report: USGS after 19 hours.

Earthquake details

Date & timeApr 27, 2021 00:21:49 UTC
Local time at epicenter
StatusConfirmed
Magnitude1
Depth6.9 km
Epicenter latitude / longitude44.30383°N / 122.28683°W (Oregon, United States)
Antipode44.304°S / 57.713°E
Shaking intensityNot felt
Primary data sourceUSGS (United States Geological Survey)
Nearest volcanoSand Mountain (30 km / 19 mi)
Nearby towns and cities19 km (12 mi) ESE of Cascadia (pop: 147) | Show on map | Quakes nearby
56 km (35 mi) ESE of Lebanon (pop: 16,300) | Show on map | Quakes nearby
65 km (41 mi) ENE of Springfield (pop: 60,900) | Show on map | Quakes nearby
70 km (43 mi) ENE of Eugene (pop: 163,500) | Show on map | Quakes nearby
75 km (46 mi) ESE of Albany (pop: 52,200) | Show on map | Quakes nearby
82 km (51 mi) WNW of Bend (pop: 87,000) | Show on map | Quakes nearby
83 km (51 mi) ESE of Corvallis (pop: 55,800) | Show on map | Quakes nearby
89 km (55 mi) W of Redmond (pop: 28,700) | Show on map | Quakes nearby
93 km (57 mi) SE of Salem (Oregon) (pop: 164,500) | Show on map | Quakes nearby
96 km (60 mi) SE of Keizer (pop: 37,900) | Show on map | Quakes nearby
Estimated seismic energy released2 x 106 joules (0.554 kilowatt hours) | about seismic energy
Show interactive Map
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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.
Mag.DepthLocationSource
1.06.9 km18 Km SE of Cascadia, Oregon, USAUSGS

Seismograms

Seismic station: Prince Lake (PRLK/CC network) | Distance from quake: 28 km / 17 mi | Show on map | Station Info
Seismic station Prince Lake: vertical movement plot around time of quake (source: IRIS/BUD)
Seismogram (vertical component) around time of quake. Thin dotted red line indicates time of quake. Seismic waves arrive some time later, depending on distance. Source: IRIS Buffer of Uniform Data (BUD) webtool
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User reports for this quake

At magnitude 1.0, such a quake wouldn't normally be felt by people, but could be recorded instrumentally.
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
There are no user reports for this quake.

Earlier earthquakes in the same area

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