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Light mag. 4.7 earthquake - 88 km east of Iquique, Tarapaca, Chile, on Tuesday, Oct 4, 2022 at 9:50 pm (GMT -3) -

Light mag. 4.7 earthquake - 88 km east of Iquique, Tarapaca, Chile, on Tuesday, Oct 4, 2022 at 9:50 pm (GMT -3) Light mag. 4.7 earthquake - 88 km east of Iquique, Tarapaca, Chile, on Tuesday, Oct 4, 2022 at 9:50 pm (GMT -3)

Light magnitude 4.7 earthquake at 97 km depth

5 Oct 01:00 UTC: First to report: VolcanoDiscovery after 10 minutes.
5 Oct 01:07: Now using data updates from USGS

Earthquake details

Date & timeOct 5, 2022 00:50:42 UTC -
Local time at epicenterTuesday, Oct 4, 2022 at 9:50 pm (GMT -3)
StatusConfirmed
Magnitude4.7
Depth96.5 km
Epicenter latitude / longitude20.301°S / 69.3155°W (Chile)
Antipode20.301°N / 110.685°E
Shaking intensityWeak shaking
Felt2 reports
Primary data sourceUSGS (United States Geological Survey)
Nearest volcanoIrruputuncu (93 km / 58 mi)
Nearby towns and cities27 km (17 mi) SSW of Mamiña (pop: 319) | Show on map | Quakes nearby
49 km (31 mi) E of Pozo Almonte (pop: 9,280) | Show on map | Quakes nearby
58 km (36 mi) SE of Huara (pop: 1,080) | Show on map | Quakes nearby
82 km (51 mi) E of Alto Hospicio (pop: 105,100) | Show on map | Quakes nearby
88 km (54 mi) E of Iquique (pop: 227,500) | Show on map | Quakes nearby
219 km (136 mi) NNE of Tocopilla (pop: 24,500) | Show on map | Quakes nearby
228 km (142 mi) SSE of Arica (pop: 186,000) | Show on map | Quakes nearby
243 km (151 mi) N of Calama (pop: 143,100) | Show on map | Quakes nearby
Weather at epicenter at time of quakeClear Sky 13.6°C (56 F), humidity: 23%, wind: 1 m/s (2 kts) from SSW
Estimated seismic energy released7.1 x 1011 joules (197 megawatt hours, equivalent to 169 tons of TNT) | about seismic energy
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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
4.797 kmNear Los Verdes, Tarapacá, ChileUSGS
4.796 kmTARAPACA, CHILEEMSC
4.797 kmNorthern ChileRaspberryShake
4.710 kmNorthern ChileIRIS

Seismograms

Seismic station: Las Campanas Astronomical Observatory, Chile (LCO/IU network) | Distance from quake: 979 km / 608 mi | Show on map | Station Info
Seismic station Las Campanas Astronomical Observatory, Chile: 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 (2)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Translate
Pozo Almonte (49.3 km W of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / 2-5 s : Edificio hotel, fuerte remeson de tres a cuatro segundos, cuatro grados aprox.  
Iquique / Weak shaking (MMI III) / single lateral shake / 2-5 s

Earlier earthquakes in the same area

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