Quake Info: Strong Mag. 5.4 Earthquake - South Pacific Ocean, Ecuador, on Friday, Aug 13, 2021 at 2:03 pm (GMT -5)

Strong magnitude 5.4 earthquake at 5 km depth

13 Aug 19:08 UTC: First to report: IGEPN after 4 minutes.
13 Aug 19:12: Magnitude recalculated from 5.6 to 5.2. Hypocenter depth recalculated from 5.0 to 6.0 km (from 3.1 to 3.7 mi). Epicenter location corrected by 3.5 km (2.2 mi) towards NNW.
13 Aug 19:42: Magnitude recalculated from 5.2 to 5.4. Hypocenter depth recalculated from 6.0 to 5.0 km (from 3.7 to 3.1 mi). Epicenter location corrected by 1.1 km (0.7 mi) towards E.

Earthquake details

Date & time	Aug 13, 2021 19:03:48 UTC
Local time at epicenter	Friday, Aug 13, 2021 at 2:03 pm (GMT -5)
Status	Confirmed
Magnitude	5.4
Depth	5.0 km
Epicenter latitude / longitude	1.56°S / 81.01°W (South Pacific Ocean, Ecuador)
Antipode	1.56°N / 98.99°E
Shaking intensity	Light shaking
Felt	22 reports
Primary data source	IGEPN (Institute of Geophysics of the National Polytechnic School in Quito)
Nearest volcano	Chimborazo (245 km / 152 mi)
Nearby towns and cities	53 km (33 mi) WSW of Jipijapa (pop: 35,900) \| Show on map \| Quakes nearby 69 km (43 mi) SW of Montecristi (pop: 18,400) \| Show on map \| Quakes nearby 73 km (45 mi) WSW of Sucre (24 de Mayo) (pop: 15,300) \| Show on map \| Quakes nearby 73 km (45 mi) N of Salinas (pop: 43,900) \| Show on map \| Quakes nearby 74 km (46 mi) SSW of Manta (pop: 183,200) \| Show on map \| Quakes nearby 76 km (47 mi) N of La Libertad (pop: 75,900) \| Show on map \| Quakes nearby 84 km (52 mi) SW of Portoviejo (pop: 170,300) \| Show on map \| Quakes nearby 91 km (57 mi) WNW of Pedro Carbo (pop: 23,400) \| Show on map \| Quakes nearby 144 km (89 mi) WNW of Guayaquil (pop: 1,952,000) \| Show on map \| Quakes nearby 313 km (195 mi) WSW of Quito (pop: 1,399,800) \| Show on map \| Quakes nearby 383 km (238 mi) SW of Isla Limones Island (pop: 7,000) \| Show on map \| Quakes nearby
Weather at epicenter at time of quake	Overcast Clouds 20.8°C (69 F), humidity: 86%, wind: 4 m/s (8 kts) from WSW
Estimated seismic energy released	7.9 x 10¹² joules (2.21 gigawatt hours, equivalent to 1898 tons of TNT or 0.1 atomic bombs!) \| 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.	Depth	Location	Source
5.4	5 km	Off Coast of Ecuador, A 23.22km De Puerto Lopez	IGEPN
4.9	23 km	Near Coast of Ecuador	GFZ
5.0	40 km	NEAR COAST OF ECUADOR	EMSC
5.0	10 km	Off Coast of Ecuador	GeoAu
5.0	37 km	44 Km SW of Jipijapa, Ecuador	USGS

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User reports for this quake (25)

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Ballenita / Very weak shaking (MMI II) / 2-5 s : Light shaking | One user found this interesting.

Concepcion, La Unión, Cartago (1322.1 km NNW of epicenter) [Map] / not felt : I live in Costa Rica (reported through our app)

Manta Ecuador, Cantón Manta, Manabí (73.1 km NNE of epicenter) [Map] / Weak shaking (MMI III) / 2-5 s (reported through our app)

Manta Ecuador, Cantón Manta, Manabí (75.2 km NNE of epicenter) [Map] / Weak shaking (MMI III) (reported through our app)

Guayaquil / Moderate shaking (MMI V) / 10-15 s

puerto cayo / Moderate shaking (MMI V) / 10-15 s

140.4 km ESE of epicenter [Map] / not felt (reported through our app)

Montecristi / Light shaking (MMI IV) / 2-5 s

Puerto Cayo / Light shaking (MMI IV) / rattling, vibrating / 5-10 s

Manta (74.5 km NNE of epicenter) [Map] / Very weak shaking (MMI II) / single vertical bump / 1-2 s (reported through our app)

Puerto Lopez / Light shaking (MMI IV) / 2-5 s : Felt shaking, windows rattled.

Canoa / Weak shaking (MMI III) / 5-10 s : North south shake. Hanging objects swayed. Other neighbours felt it as well

Manta / Light shaking (MMI IV) / both vertical and horizontal swinging / 20-30 s : Ligero

Chone / Weak shaking (MMI III) / both vertical and horizontal swinging / 2-5 s

Montañita, santa Elena / Light shaking (MMI IV) : Tembló toda la casa pero no fue necesario salir, solo estar atentos por si había q hacerlo.

Puerto Lopez, Manabi, Ecuador / Light shaking (MMI IV) / rattling, vibrating / 2-5 s

Manglaralto / Very weak shaking (MMI II) / single lateral shake / 1-2 s

Guayaquil Ecuador (135.4 km ESE of epicenter) [Map] / Very weak shaking (MMI II) / 2-5 s (reported through our app)

Chone, Manabí, Ecuador (137.8 km NE of epicenter) [Map] / not felt

Portoviejo / Light shaking (MMI IV) / horizontal (sideways) swinging

Bahia de Caraquez, Manabi, Ecuador / Very weak shaking (MMI II) / single lateral shake / 2-5 s

Olón, Ecuador (38.2 km SE of epicenter) [Map] / Light shaking (MMI IV) / 10-15 s (reported through our app)

Aftershocks

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Recorded aftershocks, latest first (3 quakes)

Date and time	Mag Depth	Location	Details
Oct 8, 2021 06:30 1 year 25 weeks ago	3.2 10 km	South Pacific Ocean, 44 km SW of Jipijapa, Provincia de Manabi, Ecuador	More
Sep 15, 2021 04:09 1 year 28 weeks ago	3.7 6 km	South Pacific Ocean, 43 km SW of Jipijapa, Provincia de Manabi, Ecuador	More
Sep 12, 2021 23:53 1 year 28 weeks ago	3.6 1 km	South Pacific Ocean, 44 km W of Jipijapa, Provincia de Manabi, Ecuador	More

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