2008 Moon Base Blox Earthquake

The 2008 Moon Base Blox Earthquake was a 10.0 moment magnitude earthquake or "moonquake" that struck in Moon Base Blox, a moon research base that doubles as a college for Robloxians, in October 31, 2008. Despite it being powerful to trigger tsunamis, the moon has no liquid water, therefore tsunamis were impossible. However, 2-5 tunnels in Moon Base Blox collapsed are were deprived from oxygen, causing a Moon Base Blox mine to collapse underground. Sinkholes would be so deep that entire buildings in the Moon Base Blox area would be sucked into the void. The deepest known sinkhole was the Toko Trench, at about 600 feet deep. Around 45,000 Robloxians would be killed and 7,300 Robloxians would be injured from the earthquake. It took many Robloxians by surprise because earthquakes are not said to occur on the moon.

Pre-earthquake
The first earthquake recorded in the Moon by Moon Base Blox in 2006 was a tremor that the base, with a magnitude of 6.1. At first, no speculation went into this, as earthquakes are not said to occur on the moon.

Moon Base Blox issued an extra precaution warning for their base. 5-8 months before the earthquake, 8,000 more tremors ranging between 5.3 and 6.3 struck in the same area. The Roblox Moon Geological Survey ( RMGS ) put the area surrounding Moon Base Blox in "High" risk of a major earthquake. 3 months before the earthquake, a non-significant magnitude 6.1 earthquake struck. Unfortunately, 6 Robloxians were injured. 2 months before the earthquake, a 7.1 magnitude earthquake impacted. The month before the earthquake, the area was quiet for the third time until 12 days before the earthquake, when a magnitude 8.0 earthquake impacted.

During Earthquake
At October 31, 2008, 11:38 PM, the 10.0 magnitude earthquake struck violently for 30 seconds.

Post-earthquake
1 minute after the earthquake, a message was sent out as an alert. The alert said, "The site is experiencing multiple C-2/C-3 containment breaches, full site lockdown initiated.". Robloxians at the mines heard dark laughter and faint screaming.

3 minutes after the earthquake, the alert was upgraded to a warning. The warning said, "All Level 4 personnel and above, please note. Several personnel have gone missing in the Containment Hall. Investigate the area when you can. Some "characters" have breached. Reinforcements from the government known as ■■■■■■■■ will enter to handle the situation. All personnel Level 3 personnel or below are to evacuate the premises immediately, to the nearest rocket back to Roblox."

This tremor was followed by almost 278,000 aftershocks, with the second strongest, a 8.7 magnitude tremor occurring 1 day after the main shock. 17% were over magnitude 6, 29% were over magnitude 5, and the rest below 5. This earthquake, due to the extensive nature of it, also caused other, more local earthquakes, such as a series of 5.8 to 6.5 earthquakes east of the base. Since the moon has no atmosphere, no fires broke out near the base. A 9.1 magnitude tremor occurred soon after. Most of the aftershocks over magnitude 5.1 were between 7.6 to 9.6.

On 2016, an expedition to Moon Base Blox to investigate the pristine ruins of Moon Base Blox was cancelled.

As of May 28, 2021. RSA and RSCP rovers and ships have landed on Moon Base Blox are currently investigating the pristine ruins of the base.