Live record · within 100 km (62 mi) · M2.5+
Earthquakes near San Marcos
In the last 30 days there were 2 earthquakes of magnitude 2.5 or larger within 100 km (62 mi) of San Marcos, Texas, and 0 in the last 24 hours. The strongest was a magnitude 2.8, 89 km (56 mi) S of San Marcos, on 2026-10-18.
Earthquakes M2.5+ within 100 km
- Last 24 hours0
- Last 7 days0
- Last 30 days2
- Last year10
- Last 5 years57
M1+ in the last 7 days: 0. Methodology
01 — History
Earthquakes per month near San Marcos
20 earthquakes of magnitude 2.5 or larger within 100 km of San Marcos in the last 24 months. The busiest month was Jan 2025, with 5.
02 — Recent
Recent earthquakes near San Marcos
| Magnitude | Location | Distance | Depth | Time |
|---|---|---|---|---|
| 2.8 | 19 km S of Nixon, Texas | 89 km / 56 mi | depth 7 km | |
| 2.7 | 8 km ESE of Smiley, Texas | 81 km / 51 mi | depth 7 km |
03 — Questions
Earthquakes in San Marcos, answered
Was there an earthquake in San Marcos today?
No earthquake of magnitude 2.5 or larger was recorded within 100 km of San Marcos in the last 24 hours. Smaller ones can still occur. The home page lists them when you choose “All” magnitudes.
Are earthquakes common near San Marcos?
Over the last five years there were 57 earthquakes of magnitude 2.5 or larger within 100 km of San Marcos, an average of 11 a year. 10 occurred in the last 12 months. That is close to the five-year average.
What was the largest earthquake near San Marcos in five years?
A magnitude 4.6 on Jan 30, 2025, 03:26 UTC, 92 km (57 mi) S of San Marcos, at a depth of 7 km. See this earthquake
Counts describe past activity within 100 km of the city centre. They are not a forecast or a risk assessment. Data updated . Source: USGS.
05 — Embed
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