Moderate mag. 4.0 earthquake - 1.7 km east of Paraiso, Provincia de Cartago, Costa Rica, on Thursday, 21 Jan 2021 7:06 am (GMT -6) -
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Moderate magnitude 4.0 earthquake at 6 km depth
21 Jan 13:14 UTC: First to report: INETER after 8 minutes.
21 Jan 13:21: Magnitude recalculated from 3.9 to 4.0.
21 Jan 13:21: Magnitude recalculated from 3.9 to 4.0.
Date & time: 21 Jan 2021 13:06:31 UTC -
Local time at epicenter: Thursday, 21 Jan 2021 7:06 am (GMT -6)
Magnitude: 4
Depth: 6.0 km
Epicenter latitude / longitude: 9.84°N / 83.85°W
(Paraiso, Provincia de Cartago, Costa Rica)Nearest volcano: Irazu (15 km / 9 mi)
Nearby towns and cities:
2 km (1 mi) E of Paraiso (Cartago) (pop: 39,700) --> See nearby quakes!
8 km (5 mi) ESE of Cartago (pop: 26,600) --> See nearby quakes!
18 km (11 mi) ESE of San Diego (Alajuelita, Cartago) (pop: 17,000) --> See nearby quakes!
20 km (12 mi) WSW of Turrialba (Cartago) (pop: 29,000) --> See nearby quakes!
22 km (13 mi) ESE of Curridabat (San José) (pop: 34,600) --> See nearby quakes!
24 km (15 mi) ESE of Purral (San José) (pop: 30,000) --> See nearby quakes!
25 km (16 mi) ESE of San Vicente (San José) (pop: 34,400) --> See nearby quakes!
25 km (16 mi) ESE of San Vicente (San José) (pop: 34,400) --> See nearby quakes!
28 km (17 mi) ESE of San Jose (San José) (pop: 335,000) --> See nearby quakes!
91 km (56 mi) W of Puerto Limon (Limón) (pop: 63,100) --> See nearby quakes!
Weather at epicenter at time of quake:
Light Intensity Drizzle
19.2°C (67 F), humidity: 73%, wind: 6 m/s (12 kts) from ESE
Primary data source: INETERLight Intensity Drizzle
19.2°C (67 F), humidity: 73%, wind: 6 m/s (12 kts) from ESEEstimated released energy: 6.3 x 1010 joules (17.5 megawatt hours, equivalent to 15.1 tons of TNT) More info
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.
| Magnitude | Depth | Location | Source |
| M 4.0 | 6 km | 8 Km Al Norte De Cartago, Costa Rica | INETER |
| M 3.9 | 9 km | COSTA RICA | EMSC |
| M 3.9 | 9 km | 1 Km Al Sur De Paraiso, Cartago., Costa Rica | RSN |
User reports for this quake (12)
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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escazu (32.8 km WNW of epicenter) [Map] / Light shaking (MMI IV)
27.9 km NW of epicenter [Map] / Very weak shaking (MMI II) / single lateral shake / 1-2 s
25.1 km WNW of epicenter [Map] / Light shaking (MMI IV) / single lateral shake / 1-2 s (reported through our app)
46.4 km WNW of epicenter [Map] / not felt (reported through our app)
21.3 km WNW of epicenter [Map] / Light shaking (MMI IV) (reported through our app)
34.7 km WNW of epicenter [Map] / Weak shaking (MMI III) / 2-5 s
26.9 km WNW of epicenter [Map] / Light shaking (MMI IV)
30.2 km NW of epicenter [Map] / Light shaking (MMI IV)
Cartago, centro (7.1 km WNW of epicenter) [Map] / Light shaking (MMI IV) : Se cayeron fotografias (reported through our app)
Escazu / Light shaking (MMI IV) / rattling, vibrating / 2-5 s
San jose / Very strong shaking (MMI VII) / single lateral shake / 2-5 s : Very fast shaking but strong
San jose / Very strong shaking (MMI VII)
Earlier earthquakes in the same area
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