Terremoto moderato mag. 4.2 - 4.7 km a nord da Naga City, Province of Camarines Sur, Bicol, Filippine, domenica, 17 ott 2021 18:51 (GMT +8) -

Terremoto moderato mag. 4.2 - 4.7 km a nord da Naga City, Province of Camarines Sur, Bicol, Filippine, domenica, 17 ott 2021 18:51 (GMT +8)

Terremoto moderato magnitudine 4.2 at 6 km depth

17 Oct 10:53 UTC: Primo a segnalare: VolcanoDiscovery dopo 2 minuti.
17 Oct 11:10: Ora utilizzando nuova fonte di dati: PHIVOLCS
17 Oct 17:05: Profondità ricalcolata da 4.0 a 5.0 km (da 2.5 a 3.1 mi). Posizione dell'epicentro corretta di 8 km (4.9 mi) al NNW.
18 Oct 06:35: Profondità ricalcolata da 5.0 a 6.0 km (da 3.1 a 3.7 mi). Posizione dell'epicentro corretta di 1.6 km (1 mi) al SE.
Update Sun, 17 Oct 2021, 11:15
Moderate magnitude 4.2 earthquake 2 km southeast of Naga City, Philippines
4.2 quake 17 Oct 6:51 pm (GMT +8)
4.2 quake 17 Oct 6:51 pm (GMT +8)
A magnitude 4.2 earthquake near Naga City, Camarines Sur, Bicol, Philippines, was reported only 24 minutes ago by the Philippine Institute of Volcanology and Seismology (PHIVOLCS), considered the main national agency that monitors seismic activity in this part of the world. The earthquake occurred at a very shallow depth of 4 km beneath the epicenter early evening on Sunday, October 17th, 2021, at 6:51 pm local time. The exact magnitude, epicenter, and depth of the quake might be revised within the next few hours or minutes as seismologists review data and refine their calculations, or as other agencies issue their report.
A second report was later issued by the European-Mediterranean Seismological Centre (EMSC), which listed it as a magnitude 4.2 earthquake as well.
Based on the preliminary seismic data, the quake was probably felt by many people in the area of the epicenter. It should not have caused significant damage, other than objects falling from shelves, broken windows, etc.
In Naga City (pop. 174,900) located 2 km from the epicenter, Magarao (pop. 15,200) 6 km away, and Calabanga (pop. 26,800) 11 km away, the quake should have been felt as light shaking.
Weak shaking might have been felt in Nabua (pop. 25,700) located 29 km from the epicenter, Iriga City (pop. 94,800) 30 km away, Buhi (pop. 30,100) 40 km away, and Libon (pop. 68,800) 43 km away.
Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include Polangui (pop. 77,100) located 47 km from the epicenter, and Legazpi (pop. 179,500) 78 km away.

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Earthquake data

Data & ora: 17 Oct 2021 10:51:00 UTC -
Ora locale a epicentro: domenica, 17 ott 2021 18:51 (GMT +8)
Magnitudine: 4.2
Prof.: 6.0 km
Epicentro latitudine / longitudine: 13.66°N / 123.17°E (Province of Camarines Sur, Bicol, Filippine)
Antipode: 13.66°S / 56.83°W
Vulcano più vicino: Isarog (15 km / 9 mi)
Nearby towns and cities:
2 km O da Magarao (Camarines Sur) (pop: 15,200) --> Vedi sismi vicini
5 km NNO da Naga City (pop: 174,900) --> Vedi sismi vicini
7 km SO da Calabanga (Camarines Sur) (pop: 26,800) --> Vedi sismi vicini
13 km SE da Pandan (Lalawigan ng Camarines Sur) (pop: 2,330) --> Vedi sismi vicini
35 km O da Goa (Camarines Sur) (pop: 20,900) --> Vedi sismi vicini
36 km NO da Nabua (pop: 25,700) --> Vedi sismi vicini
36 km NO da Iriga City (pop: 94,800) --> Vedi sismi vicini
49 km NO da Libon (pop: 68,800) --> Vedi sismi vicini
85 km NO da Legazpi (pop: 179,500) --> Vedi sismi vicini
258 km ESE da Manila (National Capital Region) (pop: 1,600,000) --> Vedi sismi vicini
Weather at epicenter at time of quake:
Overcast Clouds 25.8°C (78 F), humidity: 91%, wind: 2 m/s (4 kts) from ENE
Fonte dati primaria: PHIVOLCS (Philippine Institute of Volcanology and Seismology)
Stima dell'energia sismica liberata: 1.3 x 1011 joules (35 MWh, equivalent to 30.1 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.Prof.UbicazioneFonte
4.26 kmPhilippines: 002 Km N 10° W of Canaman (Camarines Sur)PHIVOLCS
4.24 kmLUZON, PHILIPPINESEMSC

User reports for this quake (46)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Pili (12.3 km SSE of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 5-10 s : Felt dizzy and scared | 2 users found this interesting.  
Naga City, Camarines Sur, Bicol (6.6 km SSE of epicenter) [Map] / Moderate shaking (MMI V) / very short : Scary and i felt the incedent sink in my mind..cant sleep,everytime i close my eyes feeling my room anytime will shake  
Naga City Camarines sur (3.2 km SE of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 2-5 s : Im in the building at that time and i feel its like shaking the building like crazy im at the 3rd floor of the builing  
Naga City (9.3 km SE of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 2-5 s : Medium jolt that last 2-5 seconds. No fallen objects. | One user found this interesting.  
Gainza, Camarines Sur, Bicol (6.1 km WSW of epicenter) [Map] / Moderate shaking (MMI V) / horizontal (sideways) swinging / 5-10 s : Our tv nearly fell and the lights are shaking intensly | One user found this interesting.  
Bombon shaking 2 -5 sec (3.9 km ENE of epicenter) [Map] / Light shaking (MMI IV) : This is becoming the norm here for three days on and off shaking This one was not so bad | One user found this interesting.  
Magarao, Camarines Sur, Bicol (2.8 km SE of epicenter) [Map] / Moderate shaking (MMI V) / vertical swinging (up and down) / 1-2 s : Heavy shaking | One user found this interesting. (reported through our app)  
Calauag naga city / Weak shaking (MMI III) / 2-5 s : We heard a sound like rambling or explotion then followed by shaking movement for aroung 5 to 10 seconds.  
Aretas Baesa / Strong shaking (MMI VI) / rattling, vibrating / 1-2 s : Sudden rattling/shaking, sliding door screen in the other room fell down and some things in the kitchen fell down, as well.  
DAET / Very weak shaking (MMI II) / 1-2 s : I feel that my table is shaking but very very weak that my relatives in the house didn't felt it. But I felt it because I was just sitting in the dining table.  
Naga city / Light shaking (MMI IV) / rattling, vibrating : Nervous | One user found this interesting.  
Canaman Camarines Sur / Light shaking (MMI IV) / 2-5 s : I was alarmed. | One user found this interesting.  
Canaman (3.1 km SW of epicenter) [Map] / Light shaking (MMI IV) / 2-5 s
Naga City (4.7 km SE of epicenter) [Map] / Moderate shaking (MMI V) / horizontal (sideways) swinging / 5-10 s : alarmed  
Pili, Camarines Sur (14.8 km ESE of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 2-5 s
Bolo, Camarines Sur (24.1 km WNW of epicenter) [Map] / Light shaking (MMI IV) / horizontal (sideways) swinging / 2-5 s
Antipolo, Camarines Sur, Bicol (16 km S of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / 2-5 s
Pacol Naga City (9.8 km E of epicenter) [Map] / Light shaking (MMI IV)
Canaman (3.1 km SW of epicenter) [Map] / Light shaking (MMI IV) / 2-5 s
Magarao, Camarines Sur, Bicol (3 km SE of epicenter) [Map] / Moderate shaking (MMI V) / rattling, vibrating / 5-10 s (reported through our app)
Causip, Province of Camarines Sur, Bicol (22.5 km SE of epicenter) [Map] / Very weak shaking (MMI II) / 1-2 s (reported through our app)
Canaman, Bicol (2.5 km S of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / 2-5 s
Naga City (9.3 km SE of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 2-5 s : Medium jolt that last 2-5 seconds. No fallen objects.  
Pasacao (22.5 km SW of epicenter) [Map] / Weak shaking (MMI III) : Very light swaying from side to side for about 15 seconds. (reported through our app)  
Labo, Camarines Norte (64.1 km NW of epicenter) [Map] / Very weak shaking (MMI II) / 2-5 s
Mambulo, Province of Camarines Sur, Bicol (12.7 km WNW of epicenter) [Map] / Moderate shaking (MMI V) / horizontal (sideways) swinging / 10-15 s : theres a rumbling underneath our house and it shakes sideways  
Pili camarines sur (15.5 km SE of epicenter) [Map] / Light shaking (MMI IV) / single lateral shake / very short : I was inside the house sitting when suddenly I Felt like an elephant is shaking the house.i  
Palestina, Camarines Sur, Bicol (10.6 km E of epicenter) [Map] / Light shaking (MMI IV) (reported through our app)
Naga City, Camarines Sur, Philippines (3.3 km SE of epicenter) [Map] / Weak shaking (MMI III) / horizontal (sideways) swinging / 2-5 s (reported through our app)
Palestina, Camarines Sur, Bicol (10 km ESE of epicenter) [Map] / Weak shaking (MMI III) : Minor lateral movement  
Pili / Light shaking (MMI IV)
San Martin St., Naga City / Moderate shaking (MMI V) / rattling, vibrating / 5-10 s
Naga Cty / Moderate shaking (MMI V) / single lateral shake / 2-5 s
Catanauan / not felt (reported through our app)
Nabua / Light shaking (MMI IV)
Naga City / Moderate shaking (MMI V) / rattling, vibrating / 5-10 s : 4.2  
Carrarayan Naga City Camella Heights / Moderate shaking (MMI V) / rattling, vibrating / 5-10 s : Stong movement but short duration  
Naga City / Weak shaking (MMI III) / rattling, vibrating / 1-2 s (reported through our app)
Canaman, Camarines Sur / Moderate shaking (MMI V) / vibration and rolling / 2-5 s
Naga City, Camarines Sur, Bicol region, Philippine / Weak shaking (MMI III) / rattling, vibrating / 2-5 s (reported through our app)
NAGA CITY / Light shaking (MMI IV) / horizontal (sideways) swinging
Pamplona / Light shaking (MMI IV) / both vertical and horizontal swinging / 2-5 s : I was watching youtube then I heard a vibration and then felt the shaking. (reported through our app)  
Canaman Camarines Sur / Light shaking (MMI IV) / single lateral shake / 2-5 s (reported through our app)
Naga City, Camarines Sur / Light shaking (MMI IV) / horizontal (sideways) swinging / 2-5 s : Light Shaking. Causes a jolt even when resting and/or standing.  
Pili Camarines sur / Light shaking (MMI IV) / rattling, vibrating / 2-5 s
Sm city naga / Light shaking (MMI IV) / rattling, vibrating / 1-2 s
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