6.8 magnitude earthquake shakes Mexico, 1 dead
Source: ABC News/AP
MEXICO CITY -- A powerful earthquake with a preliminary magnitude of 6.8 struck Mexico early Thursday, causing buildings to sway and leaving at least one person dead in the nation's capital. The earthquake struck shortly after 1 a.m., just three days after a 7.6-magnitude earthquake shook western and central Mexico, killing two.
The U.S. Geological Survey said Thursday’s earthquake, like Monday’s, was centered in the western state of Michoacan near the Pacific coast. The epicenter was about 29 miles (46 kilometers) south-southwest of Aguililla, Michoacan, at a depth of about 15 miles (24.1 kilometers).
Michoacan’s state government said the quake was felt throughout the state. It reported damage to a building in the city of Uruapan and some landslides on the highway that connects Michoacan and Guerrero with the coast.
President Andrés Manuel López Obrador said via Twitter that it was an aftershock from Monday’s quake and was also felt in the states of Colima, Jalisco and Guerrero.
Read more: https://abcnews.go.com/Technology/wireStory/68-magnitude-earthquake-shakes-mexico-damage-90310510
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Notable quake, preliminary info: M 6.8 - 46 km SSW of Aguililla, Mexico https://earthquake.usgs.gov/earthquakes/eventpage/us7000ia36?utm_source=dlvr.it&utm_medium=twitter&utm_campaign=usgs_quakes
2:40 AM · Sep 22, 2022
This is an aftershock of the biggy earlier this week! Same area.
= new reply since forum marked as read
you'll usually get a swarm of smaller ones but often a couple "big" ones too. 
and the Richter scale is logarithmic, where each whole number digit up is 10 times more powerful. So that initial big one can still produce a smaller "big" one.
Depending on what was going on to cause that initial one and the "settling" afterwards, there could be some more "big" (moderate - strong) ones to come.
Before the USGS updated their website, they used to display all the aftershocks around a main quake over time. Now it seems they just show each target one (unless they have a link somewhere to overlay all the aftershocks around a location and I can't find it}. 
can go on for hours , days , years . can be as big as the main quake but diminish in size over 48 hours .
