Four times yearly, we issue Quarterly Seismicity Summaries for the Utah and Yellowstone regions. Each summary describes the state of the seismograph network over the previous three months, and lists locations for all the earthquakes detected during the same time period.
| 2022 | ||
| October – December | Yellowstone Q4 | |
| July – September | Utah Q3 | Yellowstone Q3 |
| April – June | Utah Q2 | Yellowstone Q2 |
| January – March | Utah Q1 | Yellowstone Q1 |
| 2021 | ||
| October – December | Utah Q4 | Yellowstone Q4 |
| July – September | Utah Q3 | Yellowstone Q3 |
| April – June | Utah Q2 | Yellowstone Q2 |
| January – March | Utah Q1 | Yellowstone Q1 |
| 2020 | ||
| October – December | Utah Q4 | Yellowstone Q4 |
| July – September | Utah Q3 | Yellowstone Q3 |
| April – June | Utah Q2 | Yellowstone Q2 |
| January – March | Utah Q1 | Yellowstone Q1 |
| 2019 | ||
| October – December | Utah Q4 | Yellowstone Q4 |
| July – September | Utah Q3 | Yellowstone Q3 |
| April – June | Utah Q2 | Yellowstone Q2 |
| January – March | Utah Q1 | Yellowstone Q1 |
| 2018 | ||
| October – December | Utah Q4 | Yellowstone Q4 |
| July – September | Utah Q3 | Yellowstone Q3 |
| April – June | Utah Q2 | Yellowstone Q2 |
| January – March | Utah Q1 | Yellowstone Q1 |
| 2017 | ||
| October – December | Utah Q4 | Yellowstone Q4 |
| July – September | Utah Q3 | Yellowstone Q3 |
| April – June | Utah Q2 | Yellowstone Q2 |
| January – March | Utah Q1 | Yellowstone Q1 |
| 2016 | ||
| October – December | Utah Q4 | Yellowstone Q4 |
| July – September | Utah Q3 | Yellowstone Q3 |
| April – June | Utah Q2 | Yellowstone Q2 |
| January – March | Utah Q1 | Yellowstone Q1 |
| 2015 | ||
| October – December | Utah Q4 | Yellowstone Q4 |
| July – September | Utah Q3 | Yellowstone Q3 |
| April – June | Utah Q2 | Yellowstone Q2 |
| January – March | Utah Q1 | Yellowstone Q1 |
