Thursday, July 22, 2021

2021-07-22 09:08:45 (M3.4) Arkansas-Oklahoma border region 34.7 -94.1 (86843)

M3.4 Earthquake - Arkansas-Oklahoma border region

Preliminary Report
Magnitude 3.4
Date-Time
  • 22 Jul 2021 09:08:46 UTC
  • 22 Jul 2021 04:08:46 near epicenter
  • 22 Jul 2021 03:08:46 standard time in your timezone
Location 34.728N 94.093W
Depth 10 km
Distances
  • 18.9 km (11.7 mi) S of Waldron, Arkansas
  • 78.1 km (48.4 mi) SSE of Fort Smith, Arkansas
  • 82.0 km (50.9 mi) SSE of Van Buren, Arkansas
  • 96.9 km (60.1 mi) WNW of Hot Springs National Park, Arkansas
  • 165.2 km (102.4 mi) W of Little Rock, Arkansas
Location Uncertainty Horizontal: 0.0 km; Vertical 0.0 km
Parameters Nph = 47; Dmin = 51.5 km; Rmss = 1.14 seconds; Gp = 163°
Version =
Event ID ok 2021ofts

For updates, maps, and technical information
see: Event Page or USGS Earthquake Hazards Program
Oklahoma Seismic Network
University of Oklahoma

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