QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

Earthquake near Centennial Park, AZ

USGS: 19 km S of Centennial Park, Arizona

60 km (38 mi) ESE of St. George, UT

1:34 pm MST, Apr 27, 2019 · · 14 km deep · released about 6.4 lb of TNT

Every earthquake near Centennial Park Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Washington County 69 kmKane County 120 km
Distance rings around the epicentre, with the nearest towns at their true direction and later quakes as coloured dots. Not a shaking map — see the USGS ShakeMap for that.
When
1:34 pm MST on 27 April 2019 ()
Where
20 km (12 mi) S of Centennial Park, AZ · earthquakes near Centennial Park
Magnitude
M 1.6 (ml)
Depth
14 km below the surface
Felt
no reports yet
Nearest
Washington County, 69 km NW
Nearest mapped fault
Sevier/Toroweap fault, 12 km from its surface trace — near is not the same as on
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2713 days ago

A magnitude 1.6 earthquake was recorded 20 km (12 mi) S of Centennial Park, AZ, at 1:34 pm MST on 27 April 2019 (20:34 UTC). This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

Earthquakes near other towns within 30 km: Colorado City, Hildale.

How big was it?

This earthquake released about 6.4 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,400,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,700,000× the energy of this one
  3. Around the size people start to feel M 3.0 150× the energy of this one
  4. This earthquake M 1.6 about 6.4 lb of TNT

Energy from the Gutenberg–Richter relation (log10E = 1.5M + 4.8), rounded to two figures; bar length is magnitude, which is already a logarithm of energy. Magnitudes of past earthquakes from the USGS catalogue.

For this area

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

Before 2016, the USGS record since 1900 lists no earthquake of M5 or more within 50 km.

Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.

Where

Epicentre 36.7772, -113.0105. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Washington County, UT 69 km (43 mi) NW earthquakes near Washington County
Kane County, UT 120 km (74 mi) ENE earthquakes near Kane County
Mohave County, AZ 135 km (84 mi) SSW earthquakes near Mohave County
Coconino County, AZ 153 km (95 mi) SE earthquakes near Coconino County

Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.

Aftershocks so far

55 earthquakes have been recorded within 50 km since this one.

  1. 1.7 14 km SSW of Kaibab, Arizona
  2. 1.8 12 km ESE of Springdale, Utah
  3. 2.0 12 km ESE of Springdale, Utah
  4. 1.6 9 km NE of Hildale, Utah
  5. 1.6 16 km SSE of Saint George, Utah
  6. 1.7 Arizona
  7. 1.6 3 km E of Hildale, Utah
  8. 1.7 2 km N of Cane Beds, Arizona
  9. 2.7 22 km SSW of Centennial Park, Arizona
  10. 1.8 1 km N of Cane Beds, Arizona
  11. 2.6 2 km NNW of Cane Beds, Arizona
  12. 3.4 24 km S of Centennial Park, Arizona
  13. 2.7 31 km SSE of Saint George, Utah
  14. 3.1 10 km N of Moccasin, Arizona
  15. 1.8 7 km NE of Hildale, Utah

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of . QuakeIndex does not forecast aftershocks. When USGS issues an operational aftershock forecast it appears on the USGS event page.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.