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Moderate mag. 4.8 earthquake - South Pacific Ocean, 46 km north of Machala, Provincia de El Oro, Ecuador, on Saturday, Mar 18, 2023 at 12:22 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 10 minutes earlier.
Moderate mag. 4.8 earthquake - South Pacific Ocean, 46 km north of Machala, Provincia de El Oro, Ecuador, on Saturday, Mar 18, 2023 at 12:22 pm (GMT -5) Moderate mag. 4.8 earthquake - South Pacific Ocean, 46 km north of Machala, Provincia de El Oro, Ecuador, on Saturday, Mar 18, 2023 at 12:22 pm (GMT -5)

Moderate magnitude 4.8 earthquake at 12 km depth

18 Mar 17:36 UTC: First to report: RaspberryShake after 13 minutes.

Earthquake details

Date & timeMar 18, 2023 17:22:38 UTC -
Local time at epicenterSaturday, Mar 18, 2023 at 12:22 pm (GMT -5)
StatusConfirmed
Magnitude4.8
Depth12.0 km
Epicenter latitude / longitude2.85°S / 79.99°W (South Pacific Ocean, Ecuador)
Antipode2.85°N / 100.01°E
Shaking intensityLight shaking
Felt19 reports
Primary data sourceRaspberryShake (RaspberryShake)
Nearest volcanoLicto (194 km / 121 mi)
Nearby towns and cities21 km (13 mi) WNW of Balao (pop: 12,200) | Show on map | Quakes nearby
46 km (28 mi) N of Machala (pop: 198,100) | Show on map | Quakes nearby
46 km (28 mi) WSW of Naranjal (pop: 32,000) | Show on map | Quakes nearby
50 km (31 mi) ESE of Villamil (Playas) (pop: 30,600) | Show on map | Quakes nearby
57 km (35 mi) NNW of Pasaje (pop: 44,900) | Show on map | Quakes nearby
74 km (46 mi) S of Guayaquil (pop: 1,952,000) | Show on map | Quakes nearby
76 km (48 mi) S of Duran (pop: 167,800) | Show on map | Quakes nearby
334 km (207 mi) SSW of Quito (pop: 1,399,800) | Show on map | Quakes nearby
Estimated seismic energy released1 x 1012 joules (278 megawatt hours, equivalent to 239 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
4.812 kmNear Coast of EcuadorRaspberryShake
4.175 kmNEAR COAST OF ECUADOREMSC

Seismograms

Seismic station: Santa Helena, Medellin, Colombia (HEL/CM network) | Distance from quake: 1121 km / 696 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 (22)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Riobamba, Chimborazo (201.6 km NE of epicenter) [Map] / Light shaking (MMI IV) : I was in my house, and I felt scared because the TV and the lights had moved at the same time the building vibrate.  
Quito / Weak shaking (MMI III) / horizontal (sideways) swinging / 20-30 s : Temblor largo y lateral | One user found this interesting. (reported through our app)  
Cañar, cañar, cañar (121.3 km ENE of epicenter) [Map] / Moderate shaking (MMI V) / rattling, vibrating : Fuerte temblor se caian cosas (reported through our app)  
Puerto-cayo Manabi Equateur (201.4 km NNW of epicenter) [Map] / Very weak shaking (MMI II) : Le plancher bougeait de va-et-vient  
Banos (237.2 km NE of epicenter) [Map] / Weak shaking (MMI III) / 10-15 s
Ambato, Provincia de Tungurahua (234.5 km NE of epicenter) [Map] / Very weak shaking (MMI II) / single lateral shake / 20-30 s : Oscilaciones leve  
Mirador San Jose Manabi (200.3 km NNW of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / 20-30 s
Sangolqui, Canton Rumiñahui, Provincia de Pichincha (331 km NNE of epicenter) [Map] / not felt (reported through our app)
Ambato Ecuador (235.8 km NE of epicenter) [Map] / Weak shaking (MMI III) / 15-20 s : I das stanted at my living room. I saw my bike shaking  
Aurora US (340.6 km NNE of epicenter) [Map] / Light shaking (MMI IV) / horizontal (sideways) swinging / 15-20 s
En Ecuador (145.5 km ENE of epicenter) [Map] / Weak shaking (MMI III) : Se sacudió muy fuerte se movió como un terremoto  
Gina manta las jacuatas (221.1 km NNW of epicenter) [Map] / Moderate shaking (MMI V) : Temblo todo me asuste  
Cuenca / Moderate shaking (MMI V) / 20-30 s : 13th floor apartment in 17 story building.  
Guayaquil / Weak shaking (MMI III) / horizontal (sideways) swinging / 20-30 s
Tarqui, Cuenca, EC / Moderate shaking (MMI V) / horizontal (sideways) swinging : Entire house shook for about 30 seconds  
Ron cuenca, ecuador / Strong shaking (MMI VI) / rattling, vibrating / 30-60 s : Heard noise like thunder, felt swaying, rattling, vibration. Went on for almost a minute.  
Cuenca / Moderate shaking (MMI V) / 20-30 s : 13th floor apartment in 17 story building.  
Salinas, on 12th floor of duQuesa con / Light shaking (MMI IV) / horizontal (sideways) swinging / 5-10 s : Obvious shaking chimes anditems swaying both indoor and ou (reported through our app)  
Canoa / Weak shaking (MMI III) / horizontal (sideways) swinging / 20-30 s
Quito / not felt (reported through our app)
Cooking / Weak shaking (MMI III) / horizontal (sideways) swinging / 5-10 s
Manta / not felt : Just saw people running out of the Mall yelling tremblor. We were walking on the sidewalk. (reported through our app)  
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