The symbol colors indicate how recently an earthquake occurred:

• Red: Earthquakes within the last day
• Orange: Earthquakes within the past 30 days
• Gray: Older earthquakes

The shapes denote earthquake magnitude:

• Smaller circles: Magnitude less than 2
• Medium circles: Magnitude between 2 and 3
• Larger circles: Magnitude between 3 and 4
• Squares: Magnitude between 4 and 5
• Stars: Magnitude greater than 5

For a complete explanation of all map symbols, click the "Info" icon in the top right corner. This will display the symbol legend.

We strive to aggregate data from numerous agencies to ensure comprehensive coverage of most territories. However, it's rare but possible that very minor earthquakes in some areas might not be included. If you notice an earthquake missing from our app that appears on other sites, please reach out to us and include the URL of the source where you found the earthquake details. This will help us understand why it was missed and potentially integrate the new source to prevent similar oversights in the future.

Location names, including country names, are automatically determined based on the earthquake epicenter's latitude and longitude coordinates. However, given the complexity of geographical boundaries, this automated process may lead to inaccuracies. If you observe any discrepancies, please do not hesitate to contact us. We assure you that any inaccuracies are unintentional.

Certain events may initially be marked as preliminary, automatic, or unconfirmed. We endeavor to gather as much metadata as possible from reporting agencies and, when feasible, label these events accordingly to indicate their preliminary status. Despite these efforts, false positives are possible. While rare, initial magnitude estimates may be significantly revised downward or, in some cases, events may be removed entirely upon further review. The app reports data as provided by these agencies, reflecting the evolving nature of seismic data reporting. If you notice something in the data that is clearly an error, please reach out to us.

This phenomenon is completely normal. The initial values provided in notifications can be preliminary or automatic estimates. As agencies gather more data, they may confirm these initial estimates or update them with new, slightly different values. This iterative process ensures the accuracy of the information provided.

Our app aggregates data from multiple sources, each offering their best estimate for the earthquake's parameters. Despite our efforts to reconcile data from these different sources and present only the most authoritative information for each area, there may be instances where the app cannot reliably deduplicate data. This is especially true when there are significant differences in magnitude estimates.

The vertical blue line indicates that the event's epicenter is offshore, in the water. The vertical yellow line signifies that the event data is preliminary or an automatic estimate and has not yet been confirmed.