Moderate mag. 4.1 earthquake - Laccadive Sea, 136 km west of Colombo, Western Province, Sri Lanka, on Friday, Sep 24, 2021 12:48 am (GMT +5) -

Moderate mag. 4.1 earthquake - Laccadive Sea, 136 km west of Colombo, Western Province, Sri Lanka, on Friday, Sep 24, 2021 12:48 am (GMT +5)

Moderate magnitude 4.1 earthquake at 10 km depth

23 Sep 20:13 UTC: First to report: NCS after 25 minutes.
Date & time: Sep 23, 2021 19:48:48 UTC -
Local time at epicenter: Friday, Sep 24, 2021 12:48 am (GMT +5)
Magnitude: 4.1
Depth: 10.0 km
Epicenter latitude / longitude: 7.16°N / 78.64°E (Laccadive Sea, Sri Lanka)
Antipode: 7.16°S / 101.36°W
Nearby towns and cities:
132 km (82 mi) W of Negombo (pop: 137,200) --> See nearby quakes!
136 km (84 mi) W of Colombo (pop: 648,000) --> See nearby quakes!
138 km (86 mi) W of Katunayaka (pop: 84,600) --> See nearby quakes!
140 km (87 mi) WNW of Dehiwala-Mount Lavinia (pop: 219,800) --> See nearby quakes!
142 km (89 mi) WNW of Pita Kotte (pop: 118,200) --> See nearby quakes!
143 km (89 mi) W of Kotikawatta (pop: 64,600) --> See nearby quakes!
143 km (89 mi) WNW of Sri Jayewardenepura Kotte (pop: 115,800) --> See nearby quakes!
144 km (89 mi) WNW of Moratuwa (pop: 185,000) --> See nearby quakes!
144 km (90 mi) W of Battaramulla South (pop: 75,600) --> See nearby quakes!
146 km (91 mi) WNW of Maharagama (pop: 66,600) --> See nearby quakes!
Weather at epicenter at time of quake:
Overcast Clouds 27.7°C (82 F), humidity: 86%, wind: 11 m/s (22 kts) from W
Primary data source: NCS (National Center for Seismology)
Estimated released energy: 8.9 x 1010 joules (24.8 megawatt hours, equivalent to 21.3 tons of TNT) More info
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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
4.110 kmSri Lanka: Indian OceanNCS
4.110 kmSri Lanka: LACCADIVE SEAEMSC

User reports for this quake (2)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Marawila / Weak shaking (MMI III) / single lateral shake / very short : Little shake, dogs panic | 2 users found this interesting.  
Kalutara / Weak shaking (MMI III) / single lateral shake / 2-5 s
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