Moderate mag. 3.8 earthquake - Asuncion Ixtaltepec, 32 km north of Juchitan de Zaragoza, Oaxaca, Mexico, on Friday, Oct 22, 2021 11:40 am (GMT -5) - writeAge(1634920835)

Quakes around its antipode during the following 3 days
Check different time intervals: 24 hours | 2 days
Date & time: 22 Oct 2021 16:40:35 UTC -
Local time at epicenter: Friday, Oct 22, 2021 11:40 am (GMT -5)
Magnitude: 3.8
Depth: 3 km
Epicenter latitude / longitude: 16.72°N / 95°W (Asuncion Ixtaltepec, Oaxaca, Mexico)
Antipode latitude / longitude: 16.72°S / 85°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 22. This is compared to the average number of 0.01 quakes during preceding intervals of 3 days with a standard deviation (σ) of 2.2, calculated by analzing all 100 preceding intervals of 3 days for the same region.
Interpretation:
Note: At a magnitude of 3.8, 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+ 2 0 0.2 2 (9.9σ) 4+ 3 0 0.3 3 (9.9σ) 3+ 17 0 1.7 17 (9.9σ) Total 22 0.01 2.2 22 (9.9σ)
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

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Showing quakes magnitude 3.0 or higher (total: 22).
 Date and time MagDepth Location Details 22 Oct 2021 17:01:14 GMT(21 minutes after quake) 4.428 km Southern Sumatra, Indonesia [Show on map] More 22 Oct 2021 17:42:36 GMT(1 hour and 2 minutes after quake) 3.319 km Southern Sumatra, Indonesia [Show on map] More 23 Oct 2021 02:34:45 GMT(10 hours after quake) 3.012 km Java, Indonesia [Show on map] More 23 Oct 2021 02:51:58 GMT(10 hours after quake) 3.310 km Java, Indonesia [Show on map] More 23 Oct 2021 02:56:42 GMT(10 hours after quake) 3.027 km Java, Indonesia [Show on map] More 23 Oct 2021 03:45:16 GMT(11 hours after quake) 3.214 km Java, Indonesia [Show on map] More 23 Oct 2021 08:29:01 GMT(16 hours after quake) 3.416 km Java, Indonesia [Show on map] More 23 Oct 2021 08:55:38 GMT(16 hours after quake) 3.2122 km Southern Sumatra, Indonesia [Show on map] More 23 Oct 2021 08:56:17 GMT(16 hours after quake) 3.012 km Java, Indonesia [Show on map] More 23 Oct 2021 09:02:49 GMT(16 hours after quake) 3.010 km Java, Indonesia [Show on map] More 23 Oct 2021 10:15:40 GMT(18 hours after quake) 3.419 km Java, Indonesia [Show on map] More 23 Oct 2021 20:44:57 GMT(1 day 4 hours after quake) 3.110 km Northern Sumatra, Indonesia [Show on map] More 23 Oct 2021 22:50:43 GMT(1 day 6 hours after quake) 3.010 km Java, Indonesia [Show on map] More 23 Oct 2021 22:57:58 GMT(1 day 6 hours after quake) 3.510 km Java, Indonesia [Show on map] More 23 Oct 2021 23:34:25 GMT(1 day 7 hours after quake) 5.341 km Southern Sumatra, Indonesia [Show on map] More 23 Oct 2021 23:52:07 GMT(1 day 7 hours after quake) 3.410 km Java, Indonesia [Show on map] More 24 Oct 2021 04:13:30 GMT(1 day 12 hours after quake) 3.625 km Southern Sumatra, Indonesia [Show on map] More 24 Oct 2021 09:43:58 GMT(1 day 17 hours after quake) 4.310 km South of Java, Indonesia [Show on map] More 24 Oct 2021 14:11:26 GMT(1 day 22 hours after quake) 3.210 km Java, Indonesia [Show on map] More 25 Oct 2021 06:52:08 GMT(3 days after quake) 5.144 km South of Java, Indonesia [Show on map] More 25 Oct 2021 10:43:10 GMT(3 days after quake) 3.515 km Northern Sumatra, Indonesia [Show on map] More 25 Oct 2021 14:39:11 GMT(3 days after quake) 4.610 km Indonesia: Off West Coast of Northern Sumatra [Show on map] More
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