# Weak mag. 3.5 earthquake - North Pacific Ocean, 50 km west of Tapachula de Cordova y Ordoñez, Mexico, on Tuesday, Oct 26, 2021 1:38 am (GMT -5) - writeAge(1635230305)

Quakes around its antipode during the following 3 days
Check different time intervals: 24 hours | 2 days
Date & time: 26 Oct 2021 06:38:25 UTC -
Local time at epicenter: Tuesday, Oct 26, 2021 1:38 am (GMT -5)
Magnitude: 3.5
Depth: 93 km
Epicenter latitude / longitude: 14.88°N / 92.72°W (North Pacific Ocean, Mexico)
Antipode latitude / longitude: 14.88°S / 87.28°E
Primary data source: SSN (Servicio Sismológico Nacional)
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## Quakes within 30 degrees from seismic antipode up to 3 days after the quake

The area around the antipode is marked with the big circle on the map.
The total number of quakes that occurred within 3 days around the antipode of the quake was 13. This is compared to the average number of 0.43 quakes during preceding intervals of 3 days with a standard deviation (σ) of 3, calculated by analzing all 100 preceding intervals of 3 days for the same region.
Interpretation:
Note: At a magnitude of 3.5, it is unlikely that this quake could affect areas around its antipode. If an increase or decrease of quake is detected, it is likely caused by other factors.
There is a weak increase in detected quakes around the antipode during the following 3 days.
 Mag class Total # Average σ Observed deviation 6+ 0 0 0 n/a 5+ 0 0 0.2 -0 (-0.1σ) 4+ 4 0.1 0.7 3.9 (5.2σ) 3+ 9 0.3 2.1 8.7 (4.2σ) Total 13 0.43 3 12.6 (4.2σ)
Explanation:
BLACK = Number of quakes within normal statistical range
RED = Significantly lower than normal number of quakes
GREEN = Significantly higher than normal number of quakes

## List of quakes

Filter by magnitude:
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3.0+
4.0+
Showing quakes magnitude 3.0 or higher (total: 13).
 Date and time MagDepth Location Details 26 Oct 2021 10:02:29 GMT(3 hours after quake) 4.118 km Northern Sumatra, Indonesia [Show on map] More 26 Oct 2021 17:25:38 GMT(11 hours after quake) 4.210 km Southern Sumatra, Indonesia [Show on map] More 27 Oct 2021 01:34:29 GMT(19 hours after quake) 3.510 km Java, Indonesia [Show on map] More 27 Oct 2021 04:17:35 GMT(22 hours after quake) 4.610 km Java, Indonesia [Show on map] More 27 Oct 2021 08:41:07 GMT(1 day 2 hours after quake) 4.4153 km Nicobar Islands, India Region [Show on map] More 27 Oct 2021 13:20:37 GMT(1 day 7 hours after quake) 3.223 km Sunda Strait, Indonesia [Show on map] More 27 Oct 2021 14:08:18 GMT(1 day 7 hours after quake) 3.125 km Java, Indonesia [Show on map] More 27 Oct 2021 14:37:58 GMT(1 day 8 hours after quake) 3.270 km Southern Sumatra, Indonesia [Show on map] More 27 Oct 2021 16:00:19 GMT(1 day 9 hours after quake) 3.127 km Northern Sumatra, Indonesia [Show on map] More 27 Oct 2021 16:47:53 GMT(1 day 10 hours after quake) 3.140 km Southern Sumatra, Indonesia [Show on map] More 27 Oct 2021 22:40:16 GMT(1 day 16 hours after quake) 3.026 km Southern Sumatra, Indonesia [Show on map] More 28 Oct 2021 16:58:54 GMT(2 days after quake) 3.420 km Southern Sumatra, Indonesia [Show on map] More 28 Oct 2021 17:41:41 GMT(2 days after quake) 3.414 km Northern Sumatra, Indonesia [Show on map] More
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