Federation Internationale de Football Association said it was looking into reports of alleged anti-gay chants by Mexico fans during their country's 1-0 World Cup win against Germany on Sunday at Moscow's Luzhniki stadium. Both literally and figuratively.
Seismic monitoring agency Simmsa said it was caused "possibly by massive jumps during the goal ... of Mexico in the World Cup".
Germany lost their opening match at a World Cup finals for the first time since 1982 after Hirving Lozano scored the winning goal in Moscow.
The Germans are also renowned for delivering when it matters and have a stellar tournament record that includes at least a semi-final spot in every World Cup since 2002.
"The #sismo detected in Mexico City originated artificially", the organisation posted on social media.
"We have to win our next two games or that's the World Cup done with". It is a great opportunity for Mexican football to compete against the world champions and that is what we will try to do.
"I don't quite understand we played the way we did today, because we had already had a shot across our bow (against Saudi Arabia)".
"We will not change our match plan because if we are able to play out our ideas then we have players who can deliver". "It made us look at the instruments, since measuring these signals are often too small to distinguish".
It was a strike fit to win any match, and Costa Rica could not find a way back into the game.
Serbia and Costa Rica traded chances in the first half.
He adds: "We are so polarized and against each other these days, with the elections and everything else going on, that this brings us back together and makes us feel like things are possible". "We are now under pressure, we have to get six points from the next games", he said.