Light mag. 3.0 earthquake – 3 km NNW of Lively, Canada, on Sunday, Oct 19, 2025, at 08:46 pm (Toronto time)

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Chelmsford (13.7 km ENE of epicenter) [Map] / Very weak shaking (MMI II) / rattling, vibrating / 10-15 s : A loud rumbling noise and a bit shaky – as if a great big truck drove really fast right next to the house  

Blezard valley (16.8 km NNE of epicenter) [Map] / Weak shaking (MMI III) : I was in the sauna with my boyfriend when it sounded and felt like massive trucks going by. It was shaky enough to get me to notice and brace myself. Pretty scary, biggest one ever felt in Sudbury  

Lively, ON (3.6 km S of epicenter) [Map] / Light shaking (MMI IV) : Reported by my parents. Don’t have many details just that it was loud but no damage.  

Blezard Valley, ON (17.9 km NNE of epicenter) [Map] / Very weak shaking (MMI II) / 20-30 s : It was loud rumbling that lasted for about 20 seconds. Initially could have been mistaken for very loud thunder but the rumbling continued and the house vibrated.  

Chelmsford (13.7 km ENE of epicenter) [Map] / Light shaking (MMI IV) / vibration and rolling / 5-10 s : Sounded like a large truck pulling up to the house aNd hitting it. Came from the south (our backyard), so knew it couldnt be a truck…. My kids felt it in their bedrooms, one ground level and the other in the basement… she said she heard it for a bit before felt the shaking  

sudbury, ontario (14 km ENE of epicenter) [Map] / Very weak shaking (MMI II) / 2-5 s : We were sitting on the couch and felt it. I heard the door across the hall in my aopartment building creak too. And we’re 5 floors up.  

Lively, on (13.7 km ENE of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 20-30 s : Strong shaking of exterior walls rattling with intense and loud sounds. Longer than a typical mining blast.  

Sudbury ontario (13.4 km NNW of epicenter) [Map] / Light shaking (MMI IV) / 20-30 s : Was laying on the couch and it sounded like really loud thunder or a very heavy truck rolling by but there wasnt one  

Greater Sudbury, Ontario (12.5 km ENE of epicenter) [Map] / Light shaking (MMI IV)

Lively (354.7 km SSE of epicenter) [Map] / Moderate shaking (MMI V) / rattling, vibrating

Dowling, Greater Sudbury, Ontario (15.1 km NW of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / 2-5 s

Lively (13.7 km ENE of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating : Rumble like thunder. But too long for thunder. Windows rattled.  

1 Kristi crt lively ontario (13.7 km ENE of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / 2-5 s : Watching TV i heard a rumbling outside and the bed was moving  

near Lively, Greater Sudbury, Ontario (17 km SW of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 2-5 s : Rumble, shook the bed, loud bang with pressure on ears, rumble  

Lively (39.6 km NW of epicenter) [Map] / Moderate shaking (MMI V) / rattling, vibrating / 1-2 s

P3C2Z2 (336.4 km SSE of epicenter) [Map] / Light shaking (MMI IV)

Whitefish, Greater Sudbury, Ontario (18.3 km WSW of epicenter) [Map] / Light shaking (MMI IV) / vibration and rolling / 2-5 s : light shaking vibration and rolling  

Lively (13.7 km ENE of epicenter) [Map] / Light shaking (MMI IV) / 10-15 s

Sudbury (11.4 km E of epicenter) [Map] / Very weak shaking (MMI II) / rattling, vibrating / 10-15 s : Felt a slight brief shaking, but more heard a 10-15 second rumbling  

Elliot Lake (113 km W of epicenter) [Map] / not felt

Chelmsford Ontario (13.7 km ENE of epicenter) [Map] / Very weak shaking (MMI II) / very short

Lively (13.7 km ENE of epicenter) [Map] / Very weak shaking (MMI II) / single vertical bump / 5-10 s : We felt a really hard bang, like a car crashed into our house. no rumble before or after.  

306 riverside Drive Sudbury (12.5 km ENE of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 2-5 s : I felt my whole apartment building shaking  

Chelmsford (342.8 km SSE of epicenter) [Map] / Light shaking (MMI IV) / horizontal (sideways) swinging / 5-10 s : I was on our second floor in my house. Laying in bed. The entire house shook. My bed was moving.  

End of Kantola Road on Long Lake (336.4 km SSE of epicenter) [Map] / Very weak shaking (MMI II) / rattling, vibrating / 2-5 s : The house shook  

Sudbury (39.6 km NW of epicenter) [Map] / Moderate shaking (MMI V) / 2-5 s

Sycamore Street Chelmsford Ontario (12.8 km NNW of epicenter) [Map] / Weak shaking (MMI III) / vibration and rolling / 1-2 s

Sudbury ON (13.7 km ENE of epicenter) [Map] / not felt

Spruce st., Sudbury (336.4 km SSE of epicenter) [Map] / Weak shaking (MMI III) / single vertical bump / 1-2 s : One quick almost a bang, then it seemed to rumble to the SSW  

Hanmer ontario (336.4 km SSE of epicenter) [Map] / not felt

Lively (13.7 km ENE of epicenter) [Map] / Weak shaking (MMI III) / 1-2 s

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Note: Only reports with latitude/longitude coordinate positions given (88 in total) could be used for statistics.

What is Intensity and the Mercalli Intensity Scale?

The amount of shaking that occurs on the surface due to an earthquake is called the intensity. It is commonly measured on the so-called Modified Mercalli Intensity Scale (MMI) ranging from 1 (not felt) to 10 (extreme shaking), and given in Roman numerals as I,II,…IX, X, and often displayed with color codes ranging from light blue to dark red.
Earthquake intensity depends mainly on the magnitude and depth of the quake as well as the distance from the epicenter: The further away, the less shaking intensity occurs.
Read more about the MMI scale!

Notes
(*) Reports are filtered to exclude those that are likely highly inaccurate or esaggerated.
Only reports with latitude/longitude coordinate positions given (88 in total) could be used for geographic statistics.