Reported seismic-like event (likely no quake): 66 km southeast of Tucson, Pima County, Arizona, USA, Sunday, Mar 19, 2023 at 7:00 am (GMT -7) -

19 Mar 14:03 UTC: First to report: VolcanoDiscovery after 3 minutes.

Earthquake details

Date & time	Mar 19, 2023 14:00:27 UTC -
Local time at epicenter	Sunday, Mar 19, 2023 at 7:00 am (GMT -7)
Status	disregarded
Magnitude	unknown (3?)
Depth	10.0 km
Epicenter latitude / longitude	31.96735°N / 110.29469°W
Antipode	31.967°S / 69.705°E
Shaking intensity	Very weak shaking
Felt	1 report
Primary data source	VolcanoDiscovery (User-reported shaking)
Nearest volcano	###NEARESTVOLCANO2###
Nearby towns and cities	52 km (33 mi) SE of Tanque Verde (pop: 16,900) \| Show on map \| Quakes nearby 66 km (41 mi) ESE of Tucson (Arizona) (pop: 531,600) \| Show on map \| Quakes nearby 69 km (43 mi) ESE of Catalina Foothills (Arizona) (pop: 50,800) \| Show on map \| Quakes nearby 72 km (45 mi) ESE of Drexel Heights (pop: 27,700) \| Show on map \| Quakes nearby 77 km (48 mi) ESE of Flowing Wells (Arizona) (pop: 16,400) \| Show on map \| Quakes nearby 77 km (48 mi) ESE of Casas Adobes (Arizona) (pop: 66,800) \| Show on map \| Quakes nearby 79 km (49 mi) SE of Oro Valley (Arizona) (pop: 43,600) \| Show on map \| Quakes nearby 208 km (129 mi) SE of Chandler (Arizona) (pop: 260,800) \| Show on map \| Quakes nearby
Weather at epicenter at time of quake	Clear Sky 10.4°C (51 F), humidity: 45%, wind: 7 m/s (13 kts) from NE
Estimated seismic energy released	2 x 10⁹ joules (554 kilowatt hours, equivalent to 0.477 tons of TNT) \| about seismic energy

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Seismograms

Seismic station: Tucson, Arizona (TUC/IU network) | Distance from quake: 60 km / 37 mi | Show on map | Station Info

Seismic station Tucson, Arizona: 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. Bandpass filter applied: 0.5-10.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool

User reports for this quake (1)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.

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Benson (0 km SW of epicenter) [Map] / Very weak shaking (MMI II) / single lateral shake / very short : Laying in bed, it felt like the whole house shook. Everyone in the house felt it, single story.

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