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Light mag. 4.3 earthquake - 113 km southeast of Arica, Arica y Parinacota, Chile, on 8 Oct 12:24 am (GMT -3)

Light mag. 4.3 earthquake - 113 km southeast of Arica, Arica y Parinacota, Chile, on 8 Oct 12:24 am (GMT -3) Light mag. 4.3 earthquake - 113 km southeast of Arica, Arica y Parinacota, Chile, on 8 Oct 12:24 am (GMT -3)

Light magnitude 4.3 earthquake at 129 km depth

8 Oct 03:41 UTC: First to report: EMSC after 17 minutes.
8 Oct 03:42: Now using data updates from GUG (U. Chile)

Earthquake details

Date & timeOct 8, 2020 03:24:32 UTC
Local time at epicenter8 Oct 12:24 am (GMT -3)
Depth128.7 km
Epicenter latitude / longitude19.058°S / 69.416°W (Tamarugal, Tarapaca, Chile)
Antipode19.058°N / 110.584°E
Shaking intensityWeak shaking
Felt2 reports
Primary data sourceGUG (U. Chile)
Nearest volcanoIsluga (62 km / 39 mi)
Nearby towns and cities113 km (70 mi) SE of Arica (Arica y Parinacota) (pop: 186,000) | Show on map | Quakes nearby
146 km (91 mi) SE of Tacna (Peru) (pop: 280,100) | Show on map | Quakes nearby
150 km (93 mi) NNE of Iquique (pop: 227,500) | Show on map | Quakes nearby
188 km (117 mi) SSE of Tarata (Tacna, Peru) (pop: 3,050) | Show on map | Quakes nearby
208 km (129 mi) SSE of Chuquitira (Tacna, Peru) (pop: 4,220) | Show on map | Quakes nearby
216 km (134 mi) SSE of Ilabaya (Jorge Basadre, Tacna, Peru) (pop: 9,490) | Show on map | Quakes nearby
257 km (160 mi) SW of Patacamaya (Aroma, La Paz, Bolivia) (pop: 12,300) | Show on map | Quakes nearby
258 km (160 mi) SE of Ilo (Moquegua, Peru) (pop: 53,500) | Show on map | Quakes nearby
260 km (161 mi) SE of San Antonio (Moquegua, Peru) (pop: 15,600) | Show on map | Quakes nearby
262 km (163 mi) SE of Moquegua (Peru) (pop: 54,500) | Show on map | Quakes nearby
Weather at epicenter at time of quakeBroken Clouds 5.6°C (42 F), humidity: 58%, wind: 1 m/s (1 kts) from SW
Estimated seismic energy released1.8 x 1011 joules (49.4 megawatt hours, equivalent to 42.5 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.
4.3129 km28 Km Al N De Camiña, ChileGUG (U. Chile)
4.3133 km149 Km SE of Tacna, ChileEMSC
4.3127 km109 Km SE of Arica, ChileUSGS
4.3130 km143 Km Al Sur-SE De Tacna, Tacna - Tacna, ChileIGP
4.2130 km148 Km SE of Tacna, ChileGFZ
4.3128 km141 Km ESE of Arica, ChileUSP


Seismic station: Las Campanas Astronomical Observatory, Chile (LCO/IU network) | Distance from quake: 1114 km / 692 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 (3)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Leave a comment if you find a particular report interesting or want to add to it.
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Soy de arica y lo senti (114.1 km NW of epicenter) [Map] / Very weak shaking (MMI II) : Fue más un ruido que temblor pero lo senti (reported through our app)  
Arica (113.5 km WNW of epicenter) [Map] / Light shaking (MMI IV) / 5-10 s : Fue más ruido subterráneo que movimiento (reported through our app)  
Arica (Chile, 114 km NW of epicenter) : Mucho ruido y largo (reported through EMSC)  

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