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2012-10-10 mb 3.9 ST. LAWRENCE VALLEY REG., CANADA

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Magnitude	mb 3.9
Region	ST. LAWRENCE VALLEY REG., CANADA
Date time	2012-10-10 04:19:28.8 UTC
Location	45.65 N ; 73.23 W
Depth	10 km
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Questionnaires result

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Witness location : Otterburn Park (Canada) (12 km S from epicenter)

I could hear the rumble and the noise from chaking glasses for about 5 seconds, then a big boom like if something exploded

Witness location : Boucherville (Canada) (17 km SW from epicenter)

Rumbling and light shking feeling. I htought that the boiler downstairs was going to explose. It's the first place I looked.

Witness location : Boucherville (Canada) (17 km SW from epicenter)

One of the biggest of my life in Quebec province

Witness location : L'Assomption (Canada) (24 km NW from epicenter)

courte durée, mais bruyant

Witness location : Montreal (Canada) (30 km SW from epicenter)

It really sounded like a bomb more than an earthquake. We lost power for just a few seconds and at first i thought it was the transformer that exploded.

Then everything went back to normal

Witness location : Montreal (Canada) (30 km SW from epicenter)

sharp initial displacement (shake) , 2 or 3 vibrations
 felt like a large object falling to the ground

Witness location : Montreal (Canada) (30 km SW from epicenter)

It seem to last a long time, atleast 45 seconds or so

Witness location : Montreal (Canada) (30 km SW from epicenter)

I tought i felt an earlier one around midnight (very faint but my desk shaked a little).

Witness location : Montreal (Canada) (30 km SW from epicenter)

I live in California and know what it feels like.

Witness location : Montreal (Canada) (30 km SW from epicenter)

on sentait le bâtiment (béton) claquer, c'était comme s'il y avait une machine de travaux lourds à l'extérieur en train de percer la rue.

Witness location : Montreal (Canada) (30 km SW from epicenter)

approximately 3-5 seconds long. Sound heard before movement. Rumbling through floors and furniture

Witness location : Montreal (Canada) (30 km SW from epicenter)

Very short impact, but very distinct

Witness location : Montreal (Canada) (30 km SW from epicenter)

The tremor came on suddenly and only lasted about 5 seconds.

Witness location : Montreal (Canada) (30 km SW from epicenter)

I found it long enough to panic me a bit. was a strong deep sound and some vertical movement or so I perceived it. I had time to wake up my partner who was sleeping but he went back to bed. I was watching TV electricity didn't go off during or after. Then I was trying to find if any website would report it, I finally found this after 45 minutes or so.

Witness location : Montreal (Canada) (30 km SW from epicenter)

C'était pas très fort, et je vis seul, donc je n'ai pas pus voir de réactions. Mon frère était dans l'escalier extérieur quand ça s'est passé, mais il ne l'a pas senti.

Witness location : Montreal (Canada) (30 km SW from epicenter)

Strange shaking and a hard shock that was accompanied by erratic jumping motion, jerky. It's the first time I ever heard something of a "Bang!" sound when the floor jumped... my first thought was that a plane had crashed and exploded in the neighborhood, but the absence of fire lighting the surroundings (I was sitting at my desk facing window) made me reconsider the possibility of an earthquake. Other in the house woke up thinking that a car had crashed into the building.

Witness location : Montreal (Canada) (30 km SW from epicenter)

It was the strongest earthquake I felt but it was not severe. It was more shocking because the noise was so loud and unexpected. I was not asleep so I heard rumbling outside followed by an explosion type noise, rumbling ground for a few seconds and then the power went off for a few seconds. Everyone in my house and the friends/family I contacted woke up if they were asleep. It was more the shock factor that everyone felt, because absolutely nothing in my room/house even moved!

Witness location : Montreal (Canada) (30 km SW from epicenter)

I live in an apartment building 2nd floor it felt as the whole building is moving and i heard (dong dong dong..) it lasted about 20sc

Witness location : Montreal (Canada) (30 km SW from epicenter)

I have felt stronger earthquakes but I knew exactly what I was feeling within the first few seconds. The cat even jumped up from its curled up position and dashed under the table.

Witness location : Montreal (Canada) (30 km SW from epicenter)

Il y a eu 2 vrombissements.  Le premier semblait passer sous terre puis le second en suface avec un son enveloppant et puissant accompagné de mouvements ondulatoires.

Witness location : Montreal (Canada) (30 km SW from epicenter)

It was scary.

Witness location : Montreal (Canada) (30 km SW from epicenter)

It was a scary feeling. I thought a truck had rammed into our house.

Witness location : Montreal (Canada) (30 km SW from epicenter)

A big light occured then power went out 10 seconds later everything was shaking ppl where freaking out and running outside

Witness location : Montreal (Canada) (30 km SW from epicenter)

I thought that either there was a nearby explosion or a truck hit my building. It lasted for about 20 or 30 seconds.

Witness location : Montreal (Canada) (30 km SW from epicenter)

It was short but very strong. I really think that my old building will fall.

Witness location : Montreal (Canada) (30 km SW from epicenter)

It felt like a big one big shake.

Witness location : Montreal (Canada) (30 km SW from epicenter)

I felt something big and  heavy  fel on my roof .

Witness location : Montreal (Canada) (30 km SW from epicenter)

Very strong shaking and vibration throughout the house

Witness location : Montreal (Canada) (30 km SW from epicenter)

Umm i was watching t.v and heard a loud bom outside..sounded like a truck drive into the building...shaking  app 6 to 7 seconds....

Witness location : Montreal (Canada) (30 km SW from epicenter)

It shook my room - the whole bed moved.

Witness location : Montreal (Canada) (30 km SW from epicenter)

We woke up after midnight and felt like electricity shock

Witness location : Montreal (Canada) (30 km SW from epicenter)

Heard a low rumble, 5 seconds long. Window rattled

Witness location : Montreal (Canada) (30 km SW from epicenter)

Was outside--deep rumbling crack from the east and then about 15 seconds of rumbling

Witness location : Montreal (Canada) (30 km SW from epicenter)

We were just watching tv when we heard a rumbling followed by the vibrations. It last 10 to 12 seconds.

Witness location : Montreal (Canada) (30 km SW from epicenter)

Was outside--deep rumbling crack from the east and then about 15 seconds of rumbling

Witness location : Mascouche (Canada) (31 km W from epicenter)

I think me and pretty much everyone on my facebook list can confirm this...yeah, it happened.

Witness location : Mascouche (Canada) (31 km W from epicenter)

Surprised by the strength of the shaking and the sound, more by the sound.

Witness location : Terrebonne (Canada) (32 km W from epicenter)

Was like trembling and then impact!

Witness location : Candiac (Canada) (37 km SW from epicenter)

I was lying in bed and was woken up by the rumble and shaking. It lasted no longer than 5-7 seconds. Made parts of my house rattle.

Witness location : Laval (Canada) (38 km W from epicenter)

I woke up and felted and heard a vibrating sound

Witness location : Laval (Canada) (38 km W from epicenter)

Réveillé par une secousse assez bien perceprtible autour de minuit 38 (0H28 AM)le 10 octobre. Le lit (structure metallique) a vibré sous moi, au point de me réveiller. Je me suis tourné vers ma femme, dans l'obscurité, pour lui demander s'il avait "ressentie" cela !  Aucune réponse de sa part (elle dormait toujours !). Cette secousse ressentie suivait celle ressentie plus tot dans la soirée (entre 9H30 et 10h30 j'estime ..) alors que j'écoutais la television depuis ce meme lit (durant l'emission Homeland je crois, de 21H a 22h). Deux secousses ressenties à moins de 3 heures d'écart.

Witness location : Laval (Canada) (38 km W from epicenter)

At 12:22 in Laval

Witness location : Laval (Canada) (38 km W from epicenter)

Happened about 9 minutes ago...

Witness location : Laval (Canada) (38 km W from epicenter)

it felt like an explosion followed by the wind of the explosion.  i really thought that a plane had crashed.  it is the first time that it scared me and i went through many in Canada, US or Mexico.

Witness location : Rosemère (Canada) (46 km W from epicenter)

Like. A train passing

Witness location : Dorval (Canada) (46 km SW from epicenter)

I thought it was a structural problem, such as the foundation of my building suddenly giving way. Felt like an impact after a vertical fall.

Witness location : Sainte-Anne-des-Plaines (Canada) (47 km W from epicenter)

It was felt for several seconds

Witness location : Sainte-Anne-des-Plaines (Canada) (47 km W from epicenter)

Me and my daughter was thinking that a plane crash near mirabel airport

Witness location : Pointe-Claire (Canada) (49 km SW from epicenter)

two loud bangs heard about 10 seconds apart. Thought it was an explosion

Witness location : Pointe-Claire (Canada) (49 km SW from epicenter)

It scared my 8 year old child.

Witness location : Châteauguay (Canada) (49 km SW from epicenter)

Rattled picture frames. Lasted approx 10-15 seconds. Surprised it didn't seem to bother my two cats. No damage.

Witness location : Dollard-des-Ormeaux (Canada) (49 km W from epicenter)

Strange like an explosion in the ground,being in some big ones,this was pretty funny!

Witness location : Saint-Eustache (Canada) (53 km W from epicenter)

lots of noise

Witness location : Saint-Eustache (Canada) (53 km W from epicenter)

Long grondement

Witness location : Sainte-Sophie (Canada) (55 km W from epicenter)

Began with a rumble which woke me up and alarmed the dog, then strong shaking for a few seconds, then rumble for several second, maybe almost a minute.

Witness location : Salaberry-de-Valleyfield (Canada) (83 km SW from epicenter)

Just had fell asleep,the big low end boom woke me up,then felt the 5-6 second shake.thought the city was drilling near my home at night,since they are doing service on the roads.Felt like a compactor vibrating.

Witness location : (Canada) (86 km W from epicenter)

it was a very strange rumbling like a train passing,but also like a rolling ball.

Witness location : (Canada) (86 km W from epicenter)

Furniture didn't slip out of place but you could hear a loud thump (as if the whole house 'bumped' from below) my bed kind of bumped and shook. My daughter felt it in the basement.

Witness location : Val-David (Canada) (87 km NW from epicenter)

As of the middle of last year, we`ve felt more intense quake`s here in the Laurentiens the ever before in my 30  years of existence.  What da hell is happening to our little ball of dirt?

Witness location : Plattsburgh (United States) (107 km S from epicenter)

I noticed the building and windows were shaking (lightly).  I knew it was an earthquake, but wasn't sure since I only saw one comment on Facebook and nothing in the local Paper.  It didn't last very long--maybe 15-20 seconds.  Not very noticeable. It was at about 12:15 a.m., est.

Witness location : Hawkesbury (Canada) (107 km W from epicenter)

Steady shaking, enough to rattle cupboards above conversation level, sounding like a big rig/ piece of heavy equipment/excavator passing by outside...duration 8-10 secs.

Witness location : Burlington (United States) (130 km S from epicenter)

2-3 seconds side-to side shaking, noticed things moving on the dresser.