The 1989 New Blockers City-Ammoze City-Robloxhia City 10.5 Earthquake and Tsunami was a catastrophic series of earthquakes and tsunamis that occurred on May 11, 1989, to July 17, 1989, killing 700,000 Robloxians in those cities.
| UTC time | Unknown |
|---|---|
| Roblox Seismological Centre event | Unknown |
| Local date | May 11, 1989 |
| Local time | Unknown |
| Depth | Unknown |
| Epicenter | Unknown |
| Fault | Robloxhia Fault |
| Areas affected | New Blockers City, Ammoze City, Robloxhia City |
| Tsunami | True |
| Casualties | 700,000 confirmed dead, Unknown injured |
| Required Information | |
| Downdip rupture width in miles | 124.5 |
| Rupture area in square miles | 472,873 |
| Surface rupture length in miles | 6,057 |
| Subsurface rupture length in miles | 3,840 |
| Average displacement in feet | 883.9 |
| Fault slip rate in inches per year | 15.03 |
| Chikorita Magnitude | 10.5 Mchikorita (Great) |
Before the quake
It was a quiet day in those cities. Robloxhia City, New Blockers City and Ammoze City were sitting at the Robloxhia Fault, when the fault ruptured.
During the quake
Robloxhia City, New Blockers City, and Ammoze City were totally destroyed. A tsunami then swept the cities, causing localized flooding.
After the quake
Aftershocks of the quake continued until July 17, 1989, when the floodwaters of the tsunami receded.