# Minor mag. 0.9 earthquake - Turkey: KAGITHANE (ISTANBUL) on Wednesday, Oct 20, 2021 6:41 pm (GMT +3) - writeAge(1634744478)

Quakes around its antipode during the following 3 days
Check different time intervals: 24 hours | 2 days
Date & time: 20 Oct 2021 15:41:18 UTC -
Local time at epicenter: Wednesday, Oct 20, 2021 6:41 pm (GMT +3)
Magnitude: 0.9
Depth: 0 km
Epicenter latitude / longitude: 41.1103°N / 28.961°E (Turkey)
Antipode latitude / longitude: 41.11°S / 151.039°W
Primary data source: KOERI-RETMC (Kandilli Oservatory and Earthquake Research Institute in Istanbul)
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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 3. This is compared to the average number of 0 quakes during preceding intervals of 3 days with a standard deviation (σ) of 0.3, calculated by analzing all 100 preceding intervals of 3 days for the same region.
Interpretation:
Note: At a magnitude of 0.9, 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 n/a 4+ 2 0 0.2 2 (9.9σ) 3+ 1 0 0.1 1 (9.9σ) Total 3 0 0.3 3 (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

Showing quakes magnitude 3.0 or higher (total: 3).
 Date and time MagDepth Location Details 20 Oct 2021 16:12:07 GMT(31 minutes after quake) 4.7271 km New Zealand [Show on map] More 21 Oct 2021 02:05:59 GMT(10 hours after quake) 3.012 km New Zealand [Show on map] More 21 Oct 2021 18:17:27 GMT(1 day 3 hours after quake) 4.535 km New Zealand: Kermadec Islands Region [Show on map] More
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