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Moderate mag. 4.8 earthquake - South Pacific Ocean, 48 km northwest of Caracas, Ecuador, on Wednesday, Aug 17, 2022 at 12:50 pm (GMT -5) -

Moderate mag. 4.8 earthquake - South Pacific Ocean, 48 km northwest of Caracas, Ecuador, on Wednesday, Aug 17, 2022 at 12:50 pm (GMT -5) Moderate mag. 4.8 earthquake - South Pacific Ocean, 48 km northwest of Caracas, Ecuador, on Wednesday, Aug 17, 2022 at 12:50 pm (GMT -5)

Moderate magnitude 4.8 earthquake at 10 km depth

17 Aug 17:56 UTC: First to report: RaspberryShake after 5 minutes.
17 Aug 18:00: Magnitude recalculated from 4.1 to 4.8. Hypocenter depth recalculated from 10.0 to 6.0 km (from 6.2 to 3.7 mi). Epicenter location corrected by 28 km (17 mi) towards E.
17 Aug 19:04: Magnitude recalculated from 4.8 to 4.5. Hypocenter depth recalculated from 6.0 to 32.0 km (from 3.7 to 19.9 mi). Epicenter location corrected by 18 km (11 mi) towards SSW.
18 Aug 13:34: Now using data updates from USGS
Update Wed, 17 Aug 2022, 18:06

Moderate 4.8 quake hits near Portoviejo, Cantón Portoviejo, Provincia de Manabi, Ecuador

4.8 quake 17 Aug 12:50 pm (GMT -5)
4.8 quake 17 Aug 12:50 pm (GMT -5)
A magnitude 4.8 earthquake near Portoviejo, Cantón Portoviejo, Provincia de Manabi, Ecuador, was reported only 15 minutes ago by the citizen-seismograph network of RaspberryShake, considered the main national agency that monitors seismic activity in this part of the world. The earthquake occurred at a very shallow depth of 6 km beneath the epicenter around noon on Wednesday, August 17th, 2022, at 12:50 pm local time. The exact magnitude, epicenter, and depth of the quake might be revised within the next few hours or minutes as seismologists review data and refine their calculations, or as other agencies issue their report.
A second report was later issued by the European-Mediterranean Seismological Centre (EMSC), which listed it as a magnitude 4.8 earthquake as well. A third agency, the Institute of Geophysics of the National Polytechnic School in Quito (IGEPN), reported the same quake at magnitude 4.6.
Based on the preliminary seismic data, the quake should not have caused any significant damage, but was probably felt by many people as light vibration in the area of the epicenter.
Weak shaking might have been felt in Caracas (pop. 37,100) located 57 km from the epicenter, Manta (pop. 183,200) 68 km away, Rocafuerte (pop. 10,300) 78 km away, Montecristi (pop. 18,400) 78 km away, Tosagua (pop. 14,700) 86 km away, Portoviejo (pop. 170,300) 89 km away, and Chone (pop. 44,800) 95 km away.
Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include Calceta (pop. 17,300) located 96 km from the epicenter.
VolcanoDiscovery will automatically update magnitude and depth if these change and follow up if other significant news about the quake become available. If you're in the area, please send us your experience through our reporting mechanism, either online or via our mobile app. This will help us provide more first-hand updates to anyone around the globe who wants to know more about this quake.

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Earthquake details

Date & timeAug 17, 2022 17:50:43 UTC -
Local time at epicenterWednesday, Aug 17, 2022 at 12:50 pm (GMT -5)
Depth10.0 km
Epicenter latitude / longitude0.3841°S / 80.7973°W (South Pacific Ocean, Ecuador)
Antipode0.384°N / 99.203°E
Shaking intensityModerate shaking near epicenter
Felt0 reports
Primary data sourceUSGS (United States Geological Survey)
Nearest volcanoQuilotoa (217 km / 135 mi)
Nearby towns and cities48 km (30 mi) WNW of Caracas (Cantón Sucre) (pop: 37,100) | Show on map | Quakes nearby
65 km (40 mi) N of Manta (pop: 183,200) | Show on map | Quakes nearby
75 km (47 mi) NNW of Montecristi (pop: 18,400) | Show on map | Quakes nearby
84 km (52 mi) NNW of Portoviejo (pop: 170,300) | Show on map | Quakes nearby
86 km (53 mi) WNW of Chone (pop: 44,800) | Show on map | Quakes nearby
87 km (54 mi) NW of Calceta (Bolivar) (pop: 17,300) | Show on map | Quakes nearby
226 km (140 mi) NNW of Guayaquil (pop: 1,952,000) | Show on map | Quakes nearby
253 km (157 mi) W of Quito (pop: 1,399,800) | Show on map | Quakes nearby
269 km (167 mi) SW of Isla Limones Island (pop: 7,000) | Show on map | Quakes nearby
Estimated seismic energy released1 x 1012 joules (278 megawatt hours, equivalent to 239 tons of TNT) | about seismic energy
Show interactive Map
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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.
4.810 km47 Km WNW of Bahía De Caráquez, EcuadorUSGS
4.63 kmOff Coast of Ecuador, A 84.14 Km De Bahia De CaraquezIGEPN
4.532 kmNear Coast of EcuadorGFZ
4.810 kmOff Coast of EcuadorRaspberryShake


Seismic station: Otavalo, Ecuador (OTAV/IU network) | Distance from quake: 270 km / 168 mi | Show on map | Station Info
Seismic station Otavalo, Ecuador: 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
Show more

User reports for this quake

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
There are no user reports for this quake.

Earlier earthquakes in the same area

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