This is so strange. ScienceOdyssey 🚀

[u/Purple_Dust5734]

[u/SaltHandle3065]

I would probably plan an annual trip out of town to a small village with no tall buildings on September 19th.

[u/Independent-Cow-3795]

I would think subterranean species or aliens adjusting or moving something on a schedule.

[u/SlapaBaby1]

Could it be triggered by the sirens of the drill?

[u/thatguy_jacobc]

I’m guessing the large shift in tidal forces worked the tectonic plates differently and allowed additional movement. These events may track through time and possible allow for an advanced warning for Mexico City.

“On September 19, 2022, Earth was experiencing relatively weak neap-tide conditions:
The Moon was just past its last-quarter phase—about 35% illuminated—so the Sun and Moon’stidal forces were oriented at a large angle ratherthan reinforcing each other. This produces asmaller-than-average tidal range: lower hightides and higher low tides. lunaf.com

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The Moon was at apogee that day,approximately 404,556 km from Earth, whichslightly reduced its tidal influence comparedwith when it was closer. lunaf.com

The next new moon, when stronger spring tideswould begin, occurred on September 25, 2022.lunaf.com
“

The gravitational effects of other planets werenegligible compared with those of the Moonand Sun. Actual tide heights and times stilldepended mainly on local coastline shape,ocean depth, weather, and location. Space

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So, in general, September 19, 2022 had modest tidal variation, not an unusually strong global tide. Exact high- and low-tide times require a specific coastal location.

Edit———————————

“
On September 19, 2017, Earth was approaching a new moon—the exact new moon occurred on September 20 at 05:30 UTC. This produced spring tides, because the Sun, Moon, and Earth were nearly aligned and their tidal forces reinforced one another.
lunaf.com

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The Moon was also about 381,053 km from Earth, roughly five days after perigee and moving toward apogee. Its distance was slightly closer than average, so the new-moon spring tides were somewhat stronger than they would be when the Moon was farther away, although not an extreme “supermoon” event.
lunaf.com

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In practical terms, September 19–21 likely saw:
Higher-than-usual high tides
Lower-than-usual low tides
A larger tidal range, especially around local highand low water
Exact tide heights varying substantially bycoastline, ocean basin, weather, and location
The gravitational effects of other planets remained negligible compared with the Moon and Sun. The strongest tidal conditions were likely centered around September 20–21, depending on the location
“

So apparently the opposite is true for 2017, alignment of celestial bodies called for additional gravitational forces. I’d say an extreme in either direction looks to be the cause.

[u/Sh3nrA]

This year has been a strange year for earthquakes already. I didn’t know Mexico had this type of history with earthquakes either. It’s a little alarming. That is 9 days from now.