Ελαφρύς σεισμός μεγέθους 3.3 - 65 km νοτιοανατολικά από South Lake Tahoe, El Dorado County, Καλιφόρνια, Ηνωμένες Πολιτείες, Πέμπτη, 8 Ιου 2021 16:03 (GMT -7)

Ελαφρύς σεισμός μεγέθους 3.3 σε βάθος 4.5 χλμ

8 Jul 23:05 UTC: Πρώτα να αναφέρει: VolcanoDiscovery after 2 λεπτά.
8 Jul 23:07: Now using data updates from USGS
9 Jul 05:38: Magnitude recalculated from 3.5 to 3.3. Hypocenter depth recalculated from 1.7 to 4.5 km (from 1.1 to 2.8 mi). Epicenter location corrected by 1.2 km (0.8 mi) towards ENE.

Update Thu, 8 Jul 2021, 23:15

Small tremor of magnitude 3.5 just reported 40 miles southeast of South Lake Tahoe, California, United States

3.5 quake 8 Jul 4:03 pm (GMT -7)

Just 12 minutes ago, a 3.5-magnitude earthquake struck near South Lake Tahoe, El Dorado County, California, USA. The tremor was recorded in the afternoon on Thursday 8 July 2021 at 4:03 pm local time, at a very shallow depth of 1.1 miles below the surface.
The event was filed by the United States Geological Survey, the first seismological agency to report it.
Our monitoring service identified a second report from the European-Mediterranean Seismological Centre (EMSC) which listed the quake at magnitude 3.0.
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 Walker (pop. 720) located 4 miles from the epicenter.
Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include Topaz Ranch Estates (pop. 1,500) located 18 miles from the epicenter, Smith Valley (pop. 1,600) 23 miles away, Smith (pop. 1000) 25 miles away, and Gardnerville Ranchos (pop. 11,300) 31 miles away. In Gardnerville (pop. 5,700, 34 miles away), Gardnerville (pop. 5,700, 34 miles away), and South Lake Tahoe (pop. 21,700, 40 miles away), the quake was probably not felt.

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Λεπτομέρειες σεισμού

Ημερομηνία και ώρα	8 Jul 2021 23:03:23 UTC
Τοπική ώρα στο επίκεντρο	Πέμ, 8 Ιου 2021 16:03 (GMT -7)
Status	Επιβεβαιωμένος
Μέγεθος	3.3
Βάθος	4.5 km
Επίκεντρο γεωγραφικό πλάτος / γεωγραφικό μήκος	38.48383°N / 119.5135°W (Mono, Καλιφόρνια, Ηνωμένες Πολιτείες)
Antipode	38.484°S / 60.487°E
Ένταση δονήσεων	Ασθενής
Αισθητός	21 αναφορές
Κύρια πηγή δεδομένων	USGS (United States Geological Survey)
Πλησιέστερα ηφαίστειο	Mono Lake (69 km / 43 mi)
Κοντινά μέρη	5 km (3 mi) ΝΔ of Walker (pop: 721) \| Στον χάρτη \| Σεισμοί κοντά 28 km (17 mi) Ν of Topaz Ranch Estates (Nevada) (pop: 1,500) \| Στον χάρτη \| Σεισμοί κοντά 37 km (23 mi) ΝΔ of Smith Valley (Nevada) (pop: 1,600) \| Στον χάρτη \| Σεισμοί κοντά 49 km (31 mi) ΝΑ of Gardnerville Ranchos (Nevada) (pop: 11,300) \| Στον χάρτη \| Σεισμοί κοντά 65 km (40 mi) ΝΑ of South Lake Tahoe (El Dorado County) (pop: 21,700) \| Στον χάρτη \| Σεισμοί κοντά 65 km (41 mi) ΝΑ of Johnson Lane (Douglas County, Nevada) (pop: 6,490) \| Στον χάρτη \| Σεισμοί κοντά 77 km (48 mi) ΒΑ of Arnold (pop: 3,840) \| Στον χάρτη \| Σεισμοί κοντά 79 km (49 mi) ΝΑ of Κάρσον Σίτι (Nevada) (pop: 54,500) \| Στον χάρτη \| Σεισμοί κοντά 87 km (54 mi) ΒΑ of Phoenix Lake (pop: 4,270) \| Στον χάρτη \| Σεισμοί κοντά 173 km (107 mi) Α of Σακραμέντο (pop: 490,700) \| Στον χάρτη \| Σεισμοί κοντά
Ο καιρός στο επίκεντρο την ώρα του σεισμού
Εκτιμώμενη εκλυόμενη σεισμική ενέργεια	5.6 x 10⁹ joules (1.56 megawatt hours, ισοδυναμεί με 1.34 τόνους 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.	Βάθος	Τοποθεσία	Πηγή
3.3	4.5 km	32km ENE of Dardanelle, CA	USGS
3.1	7 km	CENTRAL CALIFORNIA	EMSC

Πιο πρόσφατοι σεισμοί Top 20 τελ. 24 ώρες Quakes in the US Καλιφόρνια

User reports for this quake (21)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.

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Swauger Creek Rd / Light shaking (MMI IV) / single vertical bump / very short

Fairfield,ca (227.4 km W of epicenter) [Map] / Weak shaking (MMI III) / simple rolling (tilting sideways along one direction) / 2-5 s : Slight

Tulare,Calif (256.4 km S of epicenter) [Map] / Very weak shaking (MMI II) / 2-5 s : Light shaking. Swimming pool water moves about 5”.

95949 / Weak shaking (MMI III) / rattling, vibrating

Tulare,Calif (256.4 km S of epicenter) [Map] / Very weak shaking (MMI II) / 2-5 s : Light shaking. Swimming pool water moves about 5”.

Reno / Weak shaking (MMI III) / horizontal (sideways) swinging / 5-10 s : mild rocking

Tulare ca / Weak shaking (MMI III) / simple rolling (tilting sideways along one direction) / 15-20 s : Easy rolling not jerky lasted approx maybe 15-20 sec

Sonora, CA (95.3 km SW of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 20-30 s : Strongest shaking first 10 - 15 seconds; leveled off to a mild shake the next 10 -15 seconds, then stopped.

Swauger Creek Rd / Light shaking (MMI IV) / single vertical bump / very short

CARSON CITY (39.5 km NNW of epicenter) [Map] / Weak shaking (MMI III) / vibration and rolling / 20-30 s

Fresno, CA / Moderate shaking (MMI V) / horizontal (sideways) swinging / 2-5 s : Strong back and forth shaking with some rattling. No obvious signs of cracking or displaced objects.

So late Tahoe / Moderate shaking (MMI V) / complex rolling (tilting in multiple directions) / 20-30 s

Elk Grove / Light shaking (MMI IV) / complex rolling (tilting in multiple directions) / 5-10 s : I don't believe there are any fault lines in the Sacramento basin, so the epicenter is a way out. Feeling shock waves.

San Jose CA / Weak shaking (MMI III)

Santa Clara / Very weak shaking (MMI II) / horizontal (sideways) swinging / 5-10 s

Fresno CA / Light shaking (MMI IV) / single lateral shake / 5-10 s

Fairfield,ca (227.4 km W of epicenter) [Map] / Weak shaking (MMI III) / simple rolling (tilting sideways along one direction) / 2-5 s : Slight

Fresno / Weak shaking (MMI III) / rattling, vibrating / 5-10 s : I thought my dog had gotten on the couch and was scratching. A bump, bump, bump.

Sacramento / Weak shaking (MMI III) / single lateral shake / 20-30 s

Jackson, CA / Light shaking (MMI IV) / rattling, vibrating / 10-15 s

Sonora, CA (84.8 km SW of epicenter) [Map] / Moderate shaking (MMI V) / rattling, vibrating / 15-20 s (reported through our app)

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