Слабое землетрясение маг. 3.3 - 8.5 km к югу от Саммервилл, Дорчестер County, South Carolina, Соединенные Штаты, Понедельник, 27 сен 2021 18:21 (GMT -4) -

Слабое землетрясение маг. 3.3 - 8.5 km к югу от Саммервилл, Дорчестер County, South Carolina, Соединенные Штаты, Понедельник, 27 сен 2021 18:21 (GMT -4)

Слабое землетрясение маг. 3.3 at 7 km depth

27 Sep 22:25 UTC: Первым сообщить: VolcanoDiscovery через 3 минут.
27 Sep 22:29: Now using data updates from USGS
27 Sep 22:50: Magnitude recalculated from 2.9 to 3.3. Hypocenter depth recalculated from 9.5 to 6.4 km (from 5.9 to 4 mi). Epicenter location corrected by 8.4 km (5.2 mi) towards N.
27 Sep 23:13: Hypocenter depth recalculated from 6.4 to 6.8 km (from 4 to 4.2 mi).
Update Mon, 27 Sep 2021, 22:54
Small magnitude 3.3 quake hits 5 miles southeast of Summerville, South Carolina, United States early evening
3.3 quake 27 Sep 6:21 pm (GMT -4)
3.3 quake 27 Sep 6:21 pm (GMT -4)
A magnitude 3.3 earthquake near Summerville, Dorchester County, South Carolina, USA, was reported 32 minutes ago by the United States Geological Survey, considered the key international and national agency that monitors seismic activity in the US. The earthquake occurred at a very shallow depth of 4 miles beneath the epicenter early evening on Monday, September 27th, 2021, at 6:21 pm local time. Magnitude and other quake parameters can still change in the coming hours as the agency continues to process seismic data.
Our monitoring service identified a second report from the European-Mediterranean Seismological Centre (EMSC) which listed the quake at magnitude 3.3 as well.
Based on the preliminary seismic data, the quake should not have caused any significant damage, but was probably felt by many people as light vibration in the area of the epicenter.
Weak shaking might have been felt in Centerville (pop. 5,300) located 4 miles from the epicenter, Ladson (pop. 13,800) 4 miles away, and Summerville (pop. 48,800) 5 miles away.
Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include Goose Creek (pop. 40,600) located 7 miles from the epicenter, Hanahan (pop. 18,000) 8 miles away, North Charleston (pop. 108,300) 12 miles away, and Mt. Pleasant (pop. 81,300) 20 miles away.

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Earthquake data

Дата & время: 27 Sep 2021 22:21:57 UTC -
Местное время в эпицентре: Понедельник, 27 сен 2021 18:21 (GMT -4)
Величина: 3.3
Глубина: 6.8 km
Эпицентр Широта / Долгота: 32.944°N / 80.154°W (Дорчестер, South Carolina, Соединенные Штаты)
Antipode: 32.944°S / 99.846°E
Города поблизости:
6 km (4 mi) SSE of Centerville (pop: 5,290) --> Найдите близлежащие землетрясения!
6 km (4 mi) SW of Ladson (pop: 13,800) --> Найдите близлежащие землетрясения!
9 km (5 mi) SSE of Саммервилл (pop: 48,800) --> Найдите близлежащие землетрясения!
12 km (7 mi) WSW of Goose Creek (pop: 40,600) --> Найдите близлежащие землетрясения!
13 km (8 mi) WNW of Hanahan (pop: 18,000) --> Найдите близлежащие землетрясения!
19 km (12 mi) WNW of Норт-Чарлстон (pop: 108,300) --> Найдите близлежащие землетрясения!
32 km (20 mi) WNW of Mt. Pleasant (pop: 81,300) --> Найдите близлежащие землетрясения!
130 km (81 mi) NE of Саванна (Georgia) (pop: 145,700) --> Найдите близлежащие землетрясения!
143 km (89 mi) SE of Колумбия (pop: 133,800) --> Найдите близлежащие землетрясения!
719 km (447 mi) SSW of Washington (District of Columbia) (pop: 601,700) --> Найдите близлежащие землетрясения!
Погода в эпицентре во время землетрясения:
Few Clouds 25.9°C (79 F), humidity: 64%, wind: 5 m/s (10 kts) from SSW
Источник данных: USGS (United States Geological Survey)
Расчетная высвобожденная энергия: 5.6 x 109 Дж (1.56 мегаватт-часов, эквивалент 1.34 тонн тротила) | about seismic energy
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Если вы почувствовали землетрясение (или находитесь рядом с эпицентром), пожалуйста, поделитесь своим опытом и отправьте короткое сообщение "Я почувствовал это землетрясение"! Остальным пользователям будет интересно узнать об этом!
Если вы НЕ почувствовали землетрясение, хотя вы были в этом районе, пожалуйста, сообщите об этом! Ваш вклад имеет большое значение для изучения землетрясений, анализа сейсмических опасностей и смягчения их последствий. Вы можете использовать геоданные вашего устройства или карту, чтобы уточнить, где вы находились во время землетрясения. Спасибо большое!

Данные по одному и тому же землетрясению, предоставленные разными агентствами

Информация: чем больше агентств сообщают об одном и том же землетрясении и публикуют похожие данные, тем больше у вас доверия к этим данным. Обычно требуется до нескольких часов, прежде чем параметры землетрясения будут рассчитаны с почти оптимальной точностью.
МагнитудаГлубинаМестоположениеИсточник
3.36.8 kmSouth CarolinaUSGS
3.37 kmSOUTH CAROLINAEMSC

Отчеты пользователей об этом землетрясении (268)

В отчетах пользователей оценивается воспринимаемая интенсивность сотрясения земли согласно шкале Меркалли (Шкала Modified Mercalli Intensity, MMI).
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Ladson, Berkeley, South Carolina (5.4 km NE of epicenter) [Map] / Very weak shaking (MMI II) / vibration and rolling / 10-15 s : Very strong it felt like a cement ball is rolling under my house . In the noise it came under the ground it was unbelievable!!  
Hanahan, Berkeley, South Carolina (7.6 km ESE of epicenter) [Map] / Very weak shaking (MMI II) / rattling, vibrating / very short : I was in the garage and felt a vibration that also caused the metal door to rattle like a bass drop had just hit.  
near Centerville, Dorchester, South Carolina (16.6 km W of epicenter) [Map] / Weak shaking (MMI III) / 2-5 s : Watching tv and heard a “boom”. A little creaking of the roof or cathedral ceiling? Lasted 3-4 seconds. Spooked the dog who was snoozing in a bay window!  
The Village Green Charleston, SC 29414 (12.1 km SE of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 2-5 s : I was in the shower, my husband was in the living room. He ran into where I was and asked “did you just feel that” & as I did, he said “that was an earthquake”… explains why my dog has been unsettled since lunchtime having barking fits.  
Ladson, Berkeley, South Carolina (4.1 km E of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 5-10 s : I was on my couch and it sounded like something big fell down and made a vibration but it lasted too long to be a falling item  
Summerville, SC (3.4 km N of epicenter) [Map] / Light shaking (MMI IV) / single lateral shake / 2-5 s : I'm the living room watching TV. We could hear it moving away. The entire house shook for a second time today. This one had to be 3.0.  
Summerville sc (4.7 km NNE of epicenter) [Map] / Weak shaking (MMI III) / vibration and rolling : Eating dinner. Heard the rumble first then felt chair shaking and table vibrating as rumble intensified  
Centerville, Dorchester, South Carolina (6.1 km WNW of epicenter) [Map] / Very weak shaking (MMI II) / 5-10 s : Heard deep rumble and house shook, bed vibrated was lying on bed at time of quake, 508 Crestwood Drive, Summerville, SC 29483 rschr76fis@gmail.com shaking was low lasted about 10 sec, Weak shaking  
Ladson, Berkeley, South Carolina (5.7 km E of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / 2-5 s : Was in my home office and the walls shook....pictures on wall rattled.. Shook for 10 seconds..small intensity  
Ladson,SC 29456 (1.8 km N of epicenter) [Map] / Light shaking (MMI IV) / both vertical and horizontal swinging / 2-5 s : Just a very sharp jolt | 2 users found this interesting.  
Wescott summerville sc / not felt / very short : A loud boom like a car and ran into my house | 2 users found this interesting.  
Upper West Ashley, Ashley River Rd, MacLaura Hall / Light shaking (MMI IV) / complex rolling (tilting in multiple directions) / 5-10 s : Weak shaking. Could feel house structure moving. Dogs jumped off the sofa | 2 users found this interesting.  
Ladson south carol (6.1 km NE of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 2-5 s : Ratting of metal building and shaking of floors | 2 users found this interesting.  
Goose creek. 29445 / Moderate shaking (MMI V) / rattling, vibrating / 2-5 s : Thought it was an explosion plane crash bomb. Moderate loudness. I was outside and felt slight movement. My dogs didn’t seem to be bothered by it. Weak shaking | One user found this interesting.  
North Charleston on the phone / Moderate shaking (MMI V) / rattling, vibrating / 2-5 s : Very strange felt like the wall of the house we’re prattling | One user found this interesting.  
Goose Creek, SC / Light shaking (MMI IV) / rattling, vibrating / 1-2 s : Loud boom, then some vibrating and shaking for a very short period. | One user found this interesting.  
Summerville, SC / Light shaking (MMI IV) / rattling, vibrating / 2-5 s : Light shaking | One user found this interesting.  
Ladson SC / Light shaking (MMI IV) / rattling, vibrating / 2-5 s : Loud boom accompanied it. | One user found this interesting.  
North Charleston South Carolina / Weak shaking (MMI III) / rattling, vibrating / 2-5 s : I was sitting in my recliner when I felt shaking and heard rumblings. I thought maybe roof was going to collapse so I ran outside. It wasn’t something I have experienced before so I wasn’t sure what was happening. | One user found this interesting.  
Ashborough West in Summerville SC / Light shaking (MMI IV) / vertical swinging (up and down) / 2-5 s : Heard a boom sound and then the floor vibrated and rattled. | One user found this interesting.  
Knightsville, SC / Weak shaking (MMI III) / rattling, vibrating / 2-5 s : Entire house shaking | One user found this interesting.  
Summerville, SC / Light shaking (MMI IV) / rattling, vibrating / 2-5 s : Very low frequency rumble too low feeling to have been a truck or sound system | One user found this interesting.  
Summerville, sc / Light shaking (MMI IV) / 1-2 s : I heard a loud rumble and then my house started shaking for a few seconds. | One user found this interesting.  
Summerville / Very weak shaking (MMI II) / single vertical bump / 2-5 s : Ground ripple, jolt, sounded like tree falling, boom. | One user found this interesting.  
Ashborough subdivision, summerville, sc (5.4 km SSE of epicenter) [Map] / not felt / vibration and rolling / 2-5 s : Felt the house rumbling. I was standing on firstt floor. | One user found this interesting.  
North Charleston, SC / Weak shaking (MMI III) / rattling, vibrating / very short : Heard a loud noise and felt the house rattling | One user found this interesting.  
River Chase North Charleston / Weak shaking (MMI III) / rattling, vibrating / 2-5 s : Felt like a close sonic boom- two the big one and then a smaller one right behind it. Similar to rolling thunder but a little stronger. | One user found this interesting.  
Summerville, South Carolina (6.5 km NNW of epicenter) [Map] / Light shaking (MMI IV) : Was laying in bed and felt the whole house shake | One user found this interesting.  
Hanahan, Berkeley, South Carolina (15.4 km ESE of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating
near Saint George, Dorchester, South Carolina (50.2 km NW of epicenter) [Map] / Very weak shaking (MMI II) / single lateral shake / 1-2 s : Felt like swinging on the sofa. Second floor.  
Hanahan, Berkeley, South Carolina (15.4 km ESE of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating
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