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Minor mag. 3.7 earthquake - 3 Km NE of La Parguera, Puerto Rico, on 11 Oct 3:21 am (GMT -4)

Minor mag. 3.7 earthquake  - 3 Km NE of La Parguera, Puerto Rico, on 11 Oct 3:21 am (GMT -4)
11 Oct 07:30 UTC: First to report: USGS after 10 minutes.
11 Oct 07:55: Magnitude recalculated from 4.0 to 3.7. Hypocenter depth recalculated from 10.0 to 11.0 km (from 6.2 to 6.8 mi). Epicenter location corrected by 7.6 km (4.7 mi) towards SSW.
Date & time: 2020-10-11 07:21:00 UTC
Local time at epicenter: 11 Oct 3:21 am (GMT -4)
Magnitude: 3.7
Depth: 11.0 km
Epicenter latitude / longitude: 17.9396°N / 67.0581°W (Puerto Rico)
Nearby towns and cities:
4 km (3 mi) SW of La Parguera (pop: 1,100)
11 km (7 mi) S of Palmarejo (pop: 1,200)
12 km (8 mi) S of Lajas (pop: 5,300)
108 km (67 mi) SW of Bayamón (pop: 203,500)
116 km (72 mi) SW of San Juan (pop: 418,100)
126 km (78 mi) SW of Carolina (pop: 170,400)
Weather at epicenter at time of quake:
Broken Clouds 24.4°C (76 F), humidity: 94%, wind: 3 m/s (5 kts) from E
Primary data source: USGS
Estimated released energy: 2.2 x 1010 joules (6.22 megawatt hours, equivalent to 5.35 tons of TNT) [learn more]
If you felt this quake (or if you were near the epicenter), please share your experience and submit a short "I felt it" report! Other users would love to hear about it!
Also if you did NOT feel the quake although you were in the area, please report it! Your contribution is valuable also to earthquake science and earthquake hazard analysis and mitigation efforts. You can use your device location or the map to indicate where you were during the earthquake. Thank you!

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.
TimeMag. / DepthLocationSource
2020-10-11 07:21:00 UTC
11 Oct 3:21 am (GMT -4)
M 3.7 / 11 km3 Km NE of La Parguera, Puerto RicoUSGS
2020-10-11 07:21:00 UTCM 4.0 / 10 km44 Km W of Ponce, Puerto RicoEMSC

User reports for this quake (9)

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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Cayey, PR , US (99.7 km ENE of epicenter) [Map] / not felt (reported through our app)
Cayey, PR , US (99.7 km ENE of epicenter) [Map] / not felt (reported through our app)
La Parguera / Light shaking (MMI IV) / single vertical bump / very short : Was lying in bed, felt a sudden, hard jerk and heard a rattle/rumble
Cabo Rojo, P.R. / Weak shaking (MMI III) / 2-5 s : I was laying down on the bottom of a bunkbed and the bed lightly swang from side to side.
Frailes Yauco PR / Light shaking (MMI IV) / rattling, vibrating / 2-5 s : Firm floor vibration
Utuado (Puerto Rico, 46 km NE of epicenter) : I felt one at 11:58 easter time. (reported through EMSC)
Moca (Puerto Rico, 45 km NW of epicenter) : Scarry (reported through EMSC)
Puerto Real (Puerto Rico, 19 km NW of epicenter) : Sleeping woke me up, fast tremor (reported through EMSC)
Sabana Grande (Puerto Rico, 11 km NE of epicenter) : Me despertó (reported through EMSC)

Earlier earthquakes in the same area since 1900

Minor mag. 3.7 earthquake - 3 Km NE of La Parguera, Puerto Rico, on 11 Oct 3:21 am (GMT -4)

Map of earlier quakes


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