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Earthquake World Watch

The data below is a list of Significant Earthquakes in the last 30 days on our planet. If you're following this you may be wondering why it's not on the news every day. Gives magnitude, date/time, depth, Tsunami warning, etc. Has links to more information by USGA. Gov including maps, shake intensity, impact reports and technical summary. Back to business tools.

*External links

USGS Significant Earthquakes - Past Month

M 4.28
2km E of Carson, CA

DEPTH: 11.860 km
Date:Time: 2021-09-18 02:58:34am
Latitude: 33.8313333
Longitude: -118.2636667
USGA Details
REF: ci39812319

M 5.4
52 km WSW of Yongchuan, China

DEPTH: 10.000 km
Date:Time: 2021-09-15 08:33:32pm
Latitude: 29.1823
Longitude: 105.3905
USGA Details
REF: us7000fbky

M 4.9
9 km NW of Harding-Birch Lakes, Alaska

DEPTH: 3.900 km
Date:Time: 2021-09-14 05:56:36am
Latitude: 64.4374
Longitude: -146.737
USGA Details
REF: AK021bt4ffvw

M 3.62
5km NNW of Thousand Oaks, CA

DEPTH: 2.410 km
Date:Time: 2021-09-13 02:59:35pm
Latitude: 34.2278333
Longitude: -118.8976667
USGA Details
REF: ci39807135

M 6.2
79 km WNW of San Antonio de los Cobres, Argentina

DEPTH: 193.380 km
Date:Time: 2021-09-13 05:18:13am
Latitude: -23.8884
Longitude: -67.0152
USGA Details
REF: us7000fap8

M 7
Acapulco, Mexico

DEPTH: 20.000 km
Date:Time: 2021-09-08 01:47:47am
Latitude: 16.9816
Longitude: -99.7726
USGA Details
REF: us7000f93v

M 6.3
Kermadec Islands, New Zealand

DEPTH: 16.000 km
Date:Time: 2021-08-31 02:52:50am
Latitude: -29.9168
Longitude: -177.3691
USGA Details
REF: us7000f60j

M 7.1
South Sandwich Islands region

DEPTH: 14.000 km
Date:Time: 2021-08-22 09:33:20pm
Latitude: -60.2897
Longitude: -24.8801
USGA Details
REF: us6000f9sq


M = magnitude
Standard measurement of Magnitute for an earthquake is the Richter scale.

Magnitude Level Category Effects  Per year
Less than 2.9 Minor Normally not felt, but recorded 1,000
3.0 to 3.9 Minor Normally felt but no damage
4,900
4.0 to 4.9 Light  felt outside and indoors, with shaking and rattling of items
6,200
5.0 to 5.9 Moderate Minor damage to  buildings 80
6.0 to 6.9 Strong major to minor damage to building depending on size
12
7.0 to 7.9 Major Causes severe damage where buildings may fall and pipes broken. Will see cracks in the earth.
18
8.0 to 8.9 Great Severe damage to all structures small, big and major.
1
9.0 to 9.9 Great Will be able to see the wave of descruction
1 per 20 years



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