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Moderate mag. 4.0 earthquake - South Pacific Ocean, 47 km north of Machala, Provincia de El Oro, Ecuador, on Saturday, Mar 18, 2023 at 12:55 pm (GMT -5) -

This quake was likely an aftershock of the 6.8 quake South Pacific Ocean, Provincia del Azuay, 49 km north of Machala, Ecuador, Mar 18, 2023 12:12 pm (GMT -5), which had occurred 43 minutes earlier.
Moderate mag. 4.0 earthquake - South Pacific Ocean, 47 km north of Machala, Provincia de El Oro, Ecuador, on Saturday, Mar 18, 2023 at 12:55 pm (GMT -5) Moderate mag. 4.0 earthquake - South Pacific Ocean, 47 km north of Machala, Provincia de El Oro, Ecuador, on Saturday, Mar 18, 2023 at 12:55 pm (GMT -5)

Moderate magnitude 4.0 earthquake at 10 km depth

18 Mar 18:12 UTC: First to report: RaspberryShake after 17 minutes.

Earthquake details

Date & timeMar 18, 2023 17:55:33 UTC -
Local time at epicenterSaturday, Mar 18, 2023 at 12:55 pm (GMT -5)
Depth10.0 km
Epicenter latitude / longitude2.85°S / 79.87°W (South Pacific Ocean, Ecuador)
Antipode2.85°N / 100.13°E
Shaking intensityModerate shaking
Felt4 reports
Primary data sourceRaspberryShake (RaspberryShake)
Nearest volcanoLicto (184 km / 114 mi)
Nearby towns and cities9 km (6 mi) NW of Balao (pop: 12,200) | Show on map | Quakes nearby
34 km (21 mi) SW of Naranjal (pop: 32,000) | Show on map | Quakes nearby
47 km (29 mi) NNE of Machala (pop: 198,100) | Show on map | Quakes nearby
53 km (33 mi) N of Pasaje (pop: 44,900) | Show on map | Quakes nearby
62 km (39 mi) ESE of Villamil (Playas) (pop: 30,600) | Show on map | Quakes nearby
67 km (42 mi) N of Santa Rosa (pop: 41,800) | Show on map | Quakes nearby
73 km (45 mi) S of Guayaquil (pop: 1,952,000) | Show on map | Quakes nearby
328 km (204 mi) SSW of Quito (pop: 1,399,800) | Show on map | Quakes nearby
Estimated seismic energy released6.3 x 1010 joules (17.5 megawatt hours, equivalent to 15.1 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.
4.010 kmNear Coast of EcuadorRaspberryShake


Seismic station: Santa Helena, Medellin, Colombia (HEL/CM network) | Distance from quake: 1115 km / 693 mi | Show on map | Station Info
Seismic station Santa Helena, Medellin, Colombia: 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: 0.2-5.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool
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User reports for this quake (4)

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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los ceibos (0.6 km S of epicenter) [Map] / Moderate shaking (MMI V) / both vertical and horizontal swinging / 30-60 s
Olon / Light shaking (MMI IV) / single lateral shake / 15-20 s
Cuenca EC / Moderate shaking (MMI V) / 5-10 s : In a store in old part of the city. The ceiling started crumbling but all was ok (reported through our app)  
Loja / Light shaking (MMI IV) / 2-5 s : Rolling motion, whole3 storey building swaying. So far no aftershocks.  

Earlier earthquakes in the same area

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