It's been a while since the last update. Here's another one. A random incident/sub-story. Yes, it's chronologically out of order, but
The Mauna Kea Explosion
Besides Mt. Enigma, Mauna Kea, Hawaii, was also the site of another big cleanup operation in the USA by Crystal Tokyo and the Heavenly Knights. On Mauna Kea, an inactive shield volcano in Hawaii, there was a set of observatories for astronomical use. Near the observatories was a research facility designed to study new forms of energy and power, and perhaps to reverse-engineer Crystal Tokyo energy technologies for American use. Technological development and refinement occurred in the Mauna Kea Energy Research facility at least until October 27th, 2096 when the Mauna Kea Explosion occurred. This would be the single most destructive disaster in American history 2008 onwards.
The main problem was trying to study the Muramasa alongside Crystal Tokyo-made microfusion drives. The Muramasa is capable of absorbing huge amounts of energy into itself, and American scientists wondered if it could be used to make some kind of extremely advanced battery. However, the Muramasa functioned this way because it was some kind of entity that fed on those large amounts of energy. It was not made out of a mere energy-dense unknown material. In some ways, it could be similar to a Lemure or a Youma, but more powerful–before its destruction, there was a hypothesis that it could be connected to Chaos somehow. In its original form, the Muramasa looked like a curved sword. It then was connected to a giant fuel tank and supposed to be a massive energy store. That was the first mistake: thinking the Muramasa could be used to serve the United States. The second mistake was putting Crystal Tokyo-made microfusion drives in proximity to the apparatus. All the energy that was used in the drives was absorbed by the Muramasa.
The Muramasa then transformed into a horrifying shadow-like entity whose first action was to level the entire Mauna Kea mountain, killing over a hundred thousand people in a single blast–in far less than a second. Worse, this tore the entire mountain leaving behind nothing but rubble in the ocean. Considering this is the largest mountain if you consider height from the sea floor, that is a terrifyingly destructive feat. You could say that the Muramasa moved mountains.
Sailor Mercury, Sailor Venus, Sailor Mars, and Sailor Jupiter were rushed in to deal with this new monster. The Sentinel of Liberty also showed up, too. The blast from the Muramasa seemed to have expended much of its energy, which it replenished by taking the life forces of the hundred thousand casualties. The Muramasa attempted to fire massive beams at the four Sailor Guardians, but they dodged with no issues. The Sentinel rushed at the Muramasa with a punch, but the Sailor Guardians (currently in their Eternal forms) were faster.
“Sailor Planet Attack!”
The Muramasa screamed as it dissolved.
The Inner Sailor Guardians beat a monster and stopped it from damaging any other part of the world. But still, over a hundred thousand people died in less than a second. Considering the nature of the monster attack (over a hundred thousand people dead, much of Hawaii literally blasted away), Neo-Queen Serenity used the Lambda Power to restore all the people and all the land destroyed by the Muramasa.
If the USA scientific budget was not already gutted by the Crash of 2088, it was gutted now. A new scientific treaty developed by Director Ami Mizuno, Sailor Mercury, led to the heavy downsizing of American research unless it had international supervision to prevent another Muramasa incident. Only after planetary unification would science in America recover–and then vastly surpass anything before it due to Crystal Tokyo scientists and their ability to develop new technologies and refine old Moon Kingdom ones.
Incidents like this is one reason why research into anything magic-related is heavily regulated in Crystal Tokyo. In the Galactic Coalition era, Neo-Queen Serenity was able to get most galactic coalition members to agree to similar regulations on magic research safety (such as proper identification of magic artifacts prior to any testing) to prevent something like this from occurring elsewhere. Multi-national research initiatives also resulted in an increase in galactic technological development due to cross-pollination from various cultures. So the Mauna Kea disaster was a big learning experience not just for the United States, but for the whole galaxy.