Great mag. 8.2 earthquake - 79km WNW of Iquique, Chile on Tuesday, 1 April 2014

Earthquake waves are fast, but still take time: This is the seismic signal showing the Chile's earthquake waves arriving at one of Etna's seismic stations approx. 7000 miles (11,000 km) away. It took the (fastest P-waves) about 30 minutes to travel almost half of the globe after the quake occurred.
Earthquake waves are fast, but still take time: This is the seismic signal showing the Chile's earthquake waves arriving at one of Etna's seismic stations approx. 7000 miles (11,000 km) away. It took the (fastest P-waves) about 30 minutes to travel almost half of the globe after the quake occurred.
The magnitude 8.2 quakes occurred off shore the Tarapace coast, about 99 km NW of the city Iquique. A tsunami alarm was issued, and the coastal areas were evacuated. Fortunately, no large tsunami was triggered by the quake (which would have had the power to generate one).
At least 5 people were reported dead and significant damage has occurred in the coastal towns, but much less than what could have been expected had the quake occurred under land or closer to the coast.

According to the German magazine "Focus" 300 prisoners used the chaos resulting from the quake to escape.
Numerous aftershocks have been occurring including a strong magnitude 7.6 quake. Many more aftershocks will likely occur during the coming weeks and months.


Terremoto maggiore magnitudine 8.2 - South Pacific Ocean, 94 km a nord ovest da Iquique, Regione di Tarapacá, Cile, martedí, 01 aprile 2014

Terremoto maggiore magnitudine 8.2 - South Pacific Ocean, 94 km a nord ovest da Iquique, Regione di Tarapacá, Cile, martedí, 01 aprile 2014

Terremoto maggiore magnitudine 8.2 at 20 km depth

1 Apr 23:56 UTC: Primo a segnalare: USGS dopo 9 minuti.
Data & ora: 1 Apr 2014 23:46:46 UTC
Ora locale a epicentro: Tuesday, April 01, 2014 18:46:46
Magnitudine: 8.2
Profondità: 20.1 km
Epicentro latitudine / longitudine: 19.6416°S / 70.8171°W (South Pacific Ocean, Cile)
Vulcano più vicino: Puchuldiza (196 km / 122 mi)
Nearby towns and cities:
94 km NO da Iquique (pop: 227,500) --> Vedi sismi vicini
141 km SSO da Arica (pop: 186,000) --> Vedi sismi vicini
190 km SSO da Tacna (Perù) (pop: 280,100) --> Vedi sismi vicini
230 km SSE da Ilo (Perù) (pop: 53,500) --> Vedi sismi vicini
272 km S da Moquegua (Perù) (pop: 54,500) --> Vedi sismi vicini
280 km NNO da Tocopilla (pop: 24,500) --> Vedi sismi vicini
365 km SSE da Ciudad Satelite (Perù) (pop: 76,400) --> Vedi sismi vicini
369 km SSE da Arequipa (Perù) (pop: 841,100) --> Vedi sismi vicini
370 km NNO da Calama (pop: 143,100) --> Vedi sismi vicini
448 km N da Antofagasta (pop: 309,800) --> Vedi sismi vicini
Fonte dati primaria: USGS (United States Geological Survey)
Stima dell'energia sismica liberata: 1.3 x 1017 joules (34970 gigawatt hours, equivalent to 3 x 107 tons of TNT or 1880.6 atomic bombs!) More info
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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.
MagnitudineProfonditàUbicazioneFonte
8.220 km95km NW of Iquique, ChileUSGS
8.134 kmNear Coast of Northern ChileGFZ
8.033 km OFFSHORE TARAPACA, CHILEEMSC
6.910 kmnullGeoAu
8.220 kmPeruIGP

shake map
(shakemap: USGS)

User reports for this quake (14)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Iquique, Chile / Severe shaking (MMI VIII) : Fue largo  
Sanford, Florida / Severe shaking (MMI VIII) : It was prefaced by many small quakes in the days preceding it. I was in the lobby of the Terrado hotel located in Iquique Chile. The experience was quite eye opening. The about 24 hours later another one hit. That was the time the decision was made to leave the city.  
La Paz, Bolivia (450 km NE of epicenter) [Map] / Light shaking (MMI IV) : Even the bed mattress (with no casters) moved. We could feel the building swaying - we live on the 7th floor. No damage to the building structure.  
uniao de vitoria (2146.7 km ESE of epicenter) [Map] / Very weak shaking (MMI II) : well just a small shake at the 14th floor of our office building   
San Francisco California / Very weak shaking (MMI II) : Sitting on couch, start feeling mild wavy shaking. Said to husband "we're having an earthquake" and looked at phone for time and it was 4:48pm.   
Taylors, South Carolina / Very weak shaking (MMI II) : I felt the house shake while my family and I were eating dinner.   
Arequipa, Peru (368.6 km NNW of epicenter) [Map] / Light shaking (MMI IV) : Between "Light Shaking" and "Moderate Shaking". Slow but heavy sideways vibration lasting several minutes.  
Vitacura, Santiago, Chile (1527.6 km S of epicenter) [Map] / Violent shaking (MMI IX)
calama / Light shaking (MMI IV)
(Puerto Rico, 4236 km N of epicenter) : We did not feel the earthquake. However, the quake alarm activated for about one second. (reported through EMSC)  
Nuestra Señora de La Paz (Bolivia, 458 km NE of epicenter) : It seemed the ground barely swinging north-south (reported through EMSC)  
(Chile, 1522 km S of epicenter) : The lamps moved around. We are 1500 km from epicenter (reported through EMSC)  
Las Condes (Chile, 1517 km S of epicenter) : Lying on the floor and felt it wobble and the building was swaying and the doors swinging slightly! (reported through EMSC)  
Nuestra Señora de La Paz (Bolivia, 458 km NE of epicenter) : It seemed ground barely swinging north-south (reported through EMSC)  
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Aftershocks

More info
Recorded aftershocks, latest first (11555 quakes):
  • 03 Apr 2017 22:57 UTC
    | M 4.2 |
    113.7 km (70.6 mi) depth
    |
    274 km (170 mi) distance
    | GUG (U. Chile) | Details
  • 03 Apr 2017 22:40 UTC
    | M 2.8 |
    122.6 km (76.2 mi) depth
    |
    303 km (188 mi) distance
    | GUG (U. Chile) | Details
  • 03 Apr 2017 20:59 UTC
    | M 2.9 |
    38.6 km (24 mi) depth
    |
    100 km (62 mi) distance
    | GUG (U. Chile) | Details
  • 03 Apr 2017 20:26 UTC
    | M 3.8 |
    43 km (26.7 mi) depth
    |
    350 km (218 mi) distance
    | EMSC | Details
  • 03 Apr 2017 20:25 UTC
    | M 3.8 |
    106 km (65.9 mi) depth
    |
    206 km (128 mi) distance
    | EMSC | Details
  • 03 Apr 2017 19:00 UTC
    | M 2.6 |
    123.3 km (76.6 mi) depth
    |
    331 km (206 mi) distance
    | GUG (U. Chile) | Details
  • 03 Apr 2017 18:23 UTC
    | M 3.0 |
    90.5 km (56.2 mi) depth
    |
    425 km (264 mi) distance
    | GUG (U. Chile) | Details
  • 03 Apr 2017 17:25 UTC
    | M 2.6 |
    108.9 km (67.7 mi) depth
    |
    270 km (168 mi) distance
    | GUG (U. Chile) | Details
  • 03 Apr 2017 12:35 UTC
    | M 2.7 |
    53.6 km (33.3 mi) depth
    |
    142 km (88 mi) distance
    | GUG (U. Chile) | Details
  • 03 Apr 2017 11:34 UTC
    | M 3.3 |
    93.7 km (58.2 mi) depth
    |
    214 km (133 mi) distance
    | GUG (U. Chile) | Details
  • 03 Apr 2017 06:14 UTC
    | M 2.7 |
    25.8 km (16 mi) depth
    |
    387 km (240 mi) distance
    | GUG (U. Chile) | Details
  • 03 Apr 2017 03:11 UTC
    | M 2.8 |
    20 km (12.4 mi) depth
    |
    198 km (123 mi) distance
    | GUG (U. Chile) | Details
  • 02 Apr 2017 23:29 UTC
    | M 3.9 |
    50.5 km (31.4 mi) depth
    |
    83 km (52 mi) distance
    | GUG (U. Chile) | Details
  • 02 Apr 2017 15:43 UTC
    | M 2.5 |
    30.4 km (18.9 mi) depth
    |
    262 km (163 mi) distance
    | GUG (U. Chile) | Details
  • 02 Apr 2017 15:17 UTC
    | M 3.0 |
    94 km (58.4 mi) depth
    |
    194 km (121 mi) distance
    | GUG (U. Chile) | Details
  • 02 Apr 2017 11:00 UTC
    | M 2.6 |
    63.7 km (39.6 mi) depth
    |
    315 km (196 mi) distance
    | GUG (U. Chile) | Details
    • Show all