M 4.8 - 2024 Tewksbury, New Jersey Earthquake
- 2024-04-05 14:23:20 (UTC)
- 40.696°N 74.760°W
- 2.6 km depth
Aftershock Forecast
- The data below are the most preferred data available
- The data below have NOT been reviewed by a scientist.
- Damaging earthquakes can occur in the future, so remember to: Drop, Cover, and Hold on.
- More earthquakes than usual (called aftershocks) will continue to occur near the mainshock. The mainshock is the largest earthquake in a sequence (a series of earthquakes related to each other).
- When there are more earthquakes, the chance of a large earthquake is greater which means that the chance of damage is greater.
- No one can predict the exact time or place of any earthquake, including aftershocks. Our aftershock forecasts give us an understanding of the chances of having more earthquakes within a given time period in the affected area.
The aftershock forecast for this sequence is now based on observed aftershocks of magnitude 2 and greater. Starting on April 7, we are determining the rate of decay from the present sequence rather than previous sequences in similar regions. This sequence is decaying faster than those previous sequences and this change will decrease the forecasted activity, especially at longer time periods such as the next month or year. Forecasts will be made based on our automatic schedule which can be found at the link “Scientific Background for Aftershock Forecast” near the bottom of this page.
Aftershock Locations
This forecast applies to the area where the earthquake and aftershocks are already occurring, shown by the circle in the map below.
- hour
- day
- week
- month
- older than one month
- mainshock epicenter
Aftershock rates will decrease over time, but may remain elevated over the following year or longer.
This forecast will be updated as the sequence progresses and more information becomes available.
For more detailed information about our forecast, see the Commentary tab.
If you feel shaking, remember to Drop, Cover, and Hold On.