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Moderate mag. 4.9 earthquake - Philippine Sea, 44 km southwest of Legazpi, Philippines, on Friday, Dec 17, 2021 at 10:28 pm (GMT +8) -

Moderate mag. 4.9 earthquake - Philippine Sea, 44 km southwest of Legazpi, Philippines, on Friday, Dec 17, 2021 at 10:28 pm (GMT +8) Moderate mag. 4.9 earthquake - Philippine Sea, 44 km southwest of Legazpi, Philippines, on Friday, Dec 17, 2021 at 10:28 pm (GMT +8)

Moderate magnitude 4.9 earthquake at 10 km depth

17 Dec 14:31 UTC: First to report: VolcanoDiscovery after 2 minutes.
17 Dec 14:40: Now using data updates from PHIVOLCS
17 Dec 15:30: Now using data updates from USGS
Update Fri, 17 Dec 2021, 14:36
Seismic-like event, possible earthquake, reported few minutes ago near Legazpi, Bicol, Philippines
We are receiving unverified early reports of ground shaking possibly caused by seismic activity in or near Legazpi, Bicol, Philippines on 17 Dec 2021 (GMT) at approximately 14:28.
There are no details yet on the magnitude or depth of this possible quake. If confirmed, we can expect more accurate data to emerge in the next few minutes. The location, magnitude and time mentioned are indicative, based on our best-fit seismic model. They are temporary until our AllQuakes monitoring service receives more exact scientific data from a national or international seismological agency. Check back here shortly and stay safe.

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Earthquake data

Earthquake details

Date & timeDec 17, 2021 14:28:55 UTC -
Local time at epicenterFriday, Dec 17, 2021 at 10:28 pm (GMT +8)
StatusConfirmed
Magnitude4.9
Depth10.0 km
Epicenter latitude / longitude12.8183°N / 123.5095°E (Philippine Sea, Philippines)
Antipode12.818°S / 56.491°W
Shaking intensityLight shaking
Felt84 reports
Primary data sourceUSGS (United States Geological Survey)
Nearest volcanoMayon (52 km / 32 mi)
Nearby towns and cities13 km (8 mi) SW of Donsol (Sorsogon) (pop: 6,200) | Show on map | Quakes nearby
43 km (27 mi) WNW of Bulan (Sorsogon) (pop: 28,500) | Show on map | Quakes nearby
44 km (27 mi) SW of Legazpi (pop: 179,500) | Show on map | Quakes nearby
45 km (28 mi) SSW of Tagas (pop: 15,300) | Show on map | Quakes nearby
51 km (32 mi) NNW of Masbate (pop: 47,500) | Show on map | Quakes nearby
53 km (33 mi) S of Polangui (pop: 77,100) | Show on map | Quakes nearby
54 km (34 mi) S of Libon (pop: 68,800) | Show on map | Quakes nearby
55 km (34 mi) WSW of Sorsogon (pop: 82,700) | Show on map | Quakes nearby
69 km (43 mi) S of Iriga City (pop: 94,800) | Show on map | Quakes nearby
338 km (210 mi) SE of Manila (pop: 1,600,000) | Show on map | Quakes nearby
71 km (44 mi) NNW of Masbate Island (pop: 706,900) | Show on map | Quakes nearby
215 km (134 mi) NNE of Panay Island (pop: 4,307,000) | Show on map | Quakes nearby
Estimated seismic energy released1.4 x 1012 joules (392 megawatt hours, equivalent to 338 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
4.910 kmPhilippines: 008 Km S 04° W of Donsol (Sorsogon)USGS
4.610 kmLuzon, PhilippinesGFZ
4.910 kmMASBATE REGION, PHILIPPINESEMSC
4.910 kmLuzon, PhilippinesRaspberryShake
4.824 km13 Km SW of Donsol, PhilippinesPHIVOLCS

User reports for this quake (86)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Camarines Sur (102.4 km N of epicenter) [Map] / Very weak shaking (MMI II) / 2-5 s : Nervous | 5 users found this interesting.  
libon albay (43 km NW of epicenter) [Map] / Light shaking (MMI IV) / single lateral shake / 1-2 s : watching TV | 2 users found this interesting.  
Daraga, Albay (42.9 km NNE of epicenter) [Map] / Moderate shaking (MMI V) / horizontal (sideways) swinging / 2-5 s : I'm at the top of a double deck bed then i felt a shaking thinking that it was our dog. The shaking is strong i feel a little dizzy.  
Daraga (51.1 km NNE of epicenter) [Map] / Light shaking (MMI IV) / vertical swinging (up and down) / 1-2 s : My family and extended family is freaking out since our house was just built recently, and my extended family lives in Donsol  
Donsol, Sorsogon (15.7 km NE of epicenter) [Map] / Light shaking (MMI IV) : There was a sound like a thunder then shaking started | One user found this interesting.  
Ligao city (39.1 km N of epicenter) [Map] / Moderate shaking (MMI V) / horizontal (sideways) swinging / 2-5 s : In my bed and about to sleep | One user found this interesting.  
Polangui, Albay, Philippines (53 km N of epicenter) [Map] / Moderate shaking (MMI V) / rattling, vibrating / 2-5 s : it started light then became stronger for a second. | One user found this interesting.  
Castilla Sorsogon (36.5 km ENE of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / 2-5 s : laying in my bed | One user found this interesting.  
Daraga albay (43.2 km NNE of epicenter) [Map] / Moderate shaking (MMI V) / rattling, vibrating : Watching and later very strong quake maybe 5secs long and felt dizzy | One user found this interesting.  
Balogo, Albay, Bicol (52.9 km N of epicenter) [Map] / Very weak shaking (MMI II) : Swinging of hanged utensils | One user found this interesting.  
Pilar, Sorsogon (21.7 km ENE of epicenter) [Map] / Strong shaking (MMI VI) / rattling, vibrating : Strong vibration in a few seconds | One user found this interesting.  
Ligao City (45.8 km N of epicenter) [Map] / Moderate shaking (MMI V) / horizontal (sideways) swinging / 20-30 s : Strong earthquake | One user found this interesting.  
Pantao (46.1 km NNW of epicenter) [Map] / Weak shaking (MMI III) / single lateral shake / 2-5 s : Minor but felt. Like a jeepney ride | One user found this interesting.  
Nabua camarunes sur (68.9 km NNW of epicenter) [Map] / Light shaking (MMI IV) / vertical swinging (up and down) / 10-15 s : While laying on my bed, the bed suddenly move and i start being alert | One user found this interesting.  
Sagpon, Albay, Bicol (43.4 km NNE of epicenter) [Map] / Very weak shaking (MMI II) / horizontal (sideways) swinging / 2-5 s : 2nd floor, sitting on a chair. | One user found this interesting.  
82.8 km NNW of epicenter [Map] / Weak shaking (MMI III) / rattling, vibrating / very short : bed is shaking | One user found this interesting.  
TABACO (64.2 km NNE of epicenter) [Map] / Moderate shaking (MMI V) / both vertical and horizontal swinging / 5-10 s : At house, Eating, moving ceiling fan | One user found this interesting.  
Polangui Albay (55.2 km N of epicenter) [Map] / Light shaking (MMI IV) : shake for 5 seconds | One user found this interesting.  
42.6 km NNE of epicenter [Map] / Moderate shaking (MMI V) / 1-2 s | One user found this interesting.
San jose libon albay / Moderate shaking (MMI V) / rattling, vibrating / 2-5 s : Moderate shaking | One user found this interesting.  
Ligao, Albay, Bicol (40.4 km N of epicenter) [Map] / Moderate shaking (MMI V)
Cararayan, Tiwi, Albay (94.1 km NNW of epicenter) [Map] / Light shaking (MMI IV) / 1-2 s
Legazpi, Albay, Bicol (43.5 km NE of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 5-10 s
Tandarora (39.5 km N of epicenter) [Map] / Light shaking (MMI IV) / single lateral shake / 1-2 s : I thought someone had Shakened the bed. I got nervous  
Polangui (52.7 km N of epicenter) [Map] / Light shaking (MMI IV) / single lateral shake / 5-10 s
Sagpon, Albay, Bicol (44 km NNE of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / 10-15 s
San Fernando, Camarines Sur, Bicol (92.4 km NNW of epicenter) [Map] / Weak shaking (MMI III) / single lateral shake / very short
Legazpi city (45.4 km NE of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating : Albay doctors hospital. Moved my chair a bit. Swaying objects  
Legazpi, Albay, Bicol (44.7 km NE of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / 5-10 s : Light shaking  
Gabao, Sorsogon, Bicol (53.7 km ESE of epicenter) [Map] / Light shaking (MMI IV) / horizontal (sideways) swinging / 5-10 s
Donsol, Sorsogon (24.1 km N of epicenter) [Map] / Light shaking (MMI IV) / vertical swinging (up and down) / 5-10 s
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