EveryQuake

Earthquakes in San Marcos

1,759 earthquakes catalogued in and around San Marcos between 1902 and 2026. Recorded measurements; not a forecast.

Last updated 4 August 2026 · merged from 5 catalogues
5.6
Latest earthquake · depth 30 km
28.07.2026 05:35 UTC · from centre 96 km
1,759
recorded earthquakes
M7.8
largest
1902–2026
record span
4.32
mean magnitude
562
epicentre inside the border

By year

Stacked by magnitude; one column per year.

0691381902: 3 (M5+)19021912: 1 (M5+)19121919: 1 (M5+)1921: 1 (M5+)19221925: 2 (M5+)1927: 2 (M5+)1929: 1 (M5+)1931: 1 (M5+)1932: 1 (M5+)19321934: 2 (M5+)1935: 4 (M5+)1937: 1 (M5+)1939: 3 (M5+)1940: 1 (M5+)1942: 4 (M5+)19421943: 1 (M5+)1944: 1 (M5+)1946: 3 (M5+)1948: 2 (M5+)1950: 6 (M5+)1952: 1 (M5+)19521953: 2 (M5+)1956: 1 (M5+)1957: 2 (M5+)1958: 1 (M5+)1959: 2 (M5+)1960: 2 (M5+)1961: 2 (M5+)19621963: 1 (M4–5)1964: 1 (M3–4)1964: 3 (M4–5)1964: 1 (M5+)1965: 2 (M3–4)1965: 7 (M4–5)1965: 1 (M5+)1966: 8 (M4–5)1966: 2 (M5+)1967: 4 (M4–5)1968: 3 (M4–5)1968: 5 (M5+)1969: 2 (M4–5)1969: 2 (M5+)1970: 5 (M4–5)1970: 3 (M5+)1971: 5 (M4–5)1971: 4 (M5+)1972: 2 (M4–5)19721973: 4 (M4–5)1973: 6 (M5+)1974: 6 (M4–5)1974: 6 (M5+)1975: 6 (M4–5)1975: 4 (M5+)1976: 4 (M4–5)1976: 2 (M5+)1977: 8 (M4–5)1977: 1 (M5+)1978: 10 (M4–5)1978: 8 (M5+)1979: 6 (M4–5)1979: 7 (M5+)1980: 3 (M4–5)1980: 1 (M5+)1981: 3 (M4–5)1981: 3 (M5+)1982: 7 (M4–5)1982: 8 (M5+)19821983: 8 (M4–5)1983: 6 (M5+)1984: 4 (M4–5)1984: 1 (M5+)1985: 1 (M3–4)1985: 8 (M4–5)1985: 1 (M5+)1986: 5 (M4–5)1986: 4 (M5+)1987: 1 (M4–5)1987: 2 (M5+)1988: 21 (M4–5)1988: 2 (M5+)1989: 1 (M3–4)1989: 8 (M4–5)1989: 2 (M5+)1990: 1 (M3–4)1990: 11 (M4–5)1990: 1 (M5+)1991: 4 (M4–5)1991: 1 (M5+)1992: 2 (M3–4)1992: 10 (M4–5)1992: 4 (M5+)19921993: 5 (M3–4)1993: 39 (M4–5)1993: 5 (M5+)1994: 2 (M3–4)1994: 1 (M4–5)1994: 4 (M5+)1995: 1 (M3–4)1995: 6 (M4–5)1995: 2 (M5+)1996: 3 (M3–4)1996: 9 (M4–5)1996: 3 (M5+)1997: 2 (M3–4)1997: 13 (M4–5)1997: 1 (M5+)1998: 2 (M3–4)1998: 29 (M4–5)1998: 5 (M5+)1999: 2 (M3–4)1999: 17 (M4–5)1999: 5 (M5+)2000: 1 (M3–4)2000: 9 (M4–5)2000: 5 (M5+)2001: 17 (M4–5)2001: 4 (M5+)2002: 16 (M4–5)2002: 1 (M5+)20022003: 1 (M3–4)2003: 17 (M4–5)2004: 3 (M3–4)2004: 26 (M4–5)2004: 1 (M5+)2005: 1 (M3–4)2005: 20 (M4–5)2005: 6 (M5+)2006: 4 (M3–4)2006: 17 (M4–5)2006: 4 (M5+)2007: 32 (M4–5)2007: 3 (M5+)2008: 3 (M3–4)2008: 23 (M4–5)2008: 6 (M5+)2009: 1 (M3–4)2009: 16 (M4–5)2009: 3 (M5+)2010: 1 (M3–4)2010: 19 (M4–5)2010: 4 (M5+)2011: 34 (M4–5)2011: 2 (M5+)2012: 1 (M3–4)2012: 16 (M4–5)2012: 17 (M5+)20122013: 34 (M4–5)2013: 7 (M5+)2014: 1 (M3–4)2014: 22 (M4–5)2014: 13 (M5+)2015: 1 (M3–4)2015: 39 (M4–5)2015: 6 (M5+)2016: 17 (M3–4)2016: 21 (M4–5)2016: 3 (M5+)2017: 4 (M<3)2017: 14 (M3–4)2017: 18 (M4–5)2017: 6 (M5+)2018: 17 (M3–4)2018: 32 (M4–5)2018: 2 (M5+)2019: 47 (M3–4)2019: 88 (M4–5)2019: 3 (M5+)2020: 53 (M3–4)2020: 39 (M4–5)2020: 4 (M5+)2021: 35 (M3–4)2021: 44 (M4–5)2021: 5 (M5+)2022: 25 (M3–4)2022: 20 (M4–5)2022: 1 (M5+)20222023: 45 (M3–4)2023: 38 (M4–5)2023: 2 (M5+)2024: 1 (M<3)2024: 39 (M3–4)2024: 39 (M4–5)2024: 2 (M5+)2025: 2 (M<3)2025: 31 (M3–4)2025: 49 (M4–5)2025: 1 (M5+)2026: 7 (M<3)2026: 30 (M3–4)2026: 24 (M4–5)2026: 11 (M5+)
M<3M3–4M4–5M5+

Read this chart carefully. Rising columns do not mean earthquakes are becoming more frequent. The monitoring network improved over time: the smallest detectable earthquake in Türkiye was about M5.0 in 1966 and is M1.5 today. Earlier years look quiet because small events were not heard, not because they did not happen.

Largest earthquakes

Inclusion rule: the radius widens with magnitude (15 km up to M4, 150 km at M7 and above). This is not a measure of felt shaking or intensity.

MagnitudeDateDepthDistance
7.823.09.1902 20:180 km162 km
7.706.08.1942 23:3735 km150 km
7.519.04.1902 02:230 km147 km
7.523.10.1950 16:1365.3 km74 km
7.407.11.2012 16:3538.7 km106 km
7.329.04.1970 14:0156.5 km108 km
7.210.09.1993 19:1223.4 km93 km
7.217.07.2026 14:4830 km90 km
7.214.12.1935 22:0535 km56 km
7.109.12.1912 08:320 km129 km
7.004.02.1921 08:2215 km145 km
7.002.12.1983 03:0959.7 km100 km
7.028.06.1944 07:5825 km127 km
7.014.06.2017 07:29103.7 km3 km
6.907.07.2014 11:2373.5 km54 km

Latest earthquakes

MagnitudeDateDepthDistance
5.628.07.2026 05:3530 km96 km
4.326.07.2026 10:0420 km80 km
3.325.07.2026 06:20123 km45 km
5.120.07.2026 10:5310 km41 km
5.219.07.2026 02:1825 km109 km
4.518.07.2026 09:5130 km65 km
5.018.07.2026 06:521 km118 km
5.017.07.2026 18:1230 km88 km
4.617.07.2026 17:3235 km81 km
5.117.07.2026 17:2330 km98 km
5.217.07.2026 17:1530 km96 km
5.517.07.2026 16:0130 km83 km
5.217.07.2026 15:5720 km77 km
6.017.07.2026 15:2030 km113 km
7.217.07.2026 14:4830 km90 km
4.216.07.2026 19:02130.2 km12 km
4.114.07.2026 10:2993.1 km53 km
4.014.07.2026 03:22101.2 km62 km
4.214.07.2026 02:1237 km73 km
4.214.07.2026 01:1965.2 km63 km
3.313.07.2026 07:25134 km33 km
3.806.07.2026 15:30141 km45 km
3.903.07.2026 07:20139.5 km73 km
3.927.06.2026 06:249.5 km52 km
3.818.06.2026 08:26189.5 km64 km
3.713.06.2026 07:1985 km34 km
4.209.06.2026 06:00183.1 km66 km
3.008.06.2026 11:1531 km27 km
3.907.06.2026 15:3360.1 km22 km
3.224.05.2026 09:1499.9 km50 km
3.917.05.2026 09:2774.2 km51 km
4.211.05.2026 04:30193.7 km93 km
3.010.05.2026 09:2247 km72 km
4.207.05.2026 18:47136.9 km89 km
3.706.05.2026 06:10166.2 km26 km
4.029.04.2026 11:2730.4 km83 km
4.025.04.2026 02:0992.8 km83 km
4.220.04.2026 13:33178.9 km48 km
3.816.04.2026 21:131 km57 km
2.814.04.2026 08:11129 km28 km
3.713.04.2026 10:1060 km47 km
3.710.04.2026 11:5755 km78 km
3.608.04.2026 10:5471.4 km38 km
2.707.04.2026 08:5385 km48 km
2.904.04.2026 23:08182 km47 km
3.203.04.2026 00:04171 km35 km
3.022.03.2026 21:5461 km71 km
2.922.03.2026 18:3038 km59 km
3.021.03.2026 22:04197 km52 km
3.420.03.2026 23:33123 km22 km
3.418.03.2026 08:2478.6 km50 km
4.118.03.2026 08:07204.4 km54 km
3.915.03.2026 02:16101 km77 km
5.015.03.2026 00:22203.1 km58 km
4.014.03.2026 22:5636 km88 km
3.606.03.2026 17:44148 km21 km
3.806.03.2026 09:4410 km42 km
2.928.02.2026 15:50190 km64 km
2.826.02.2026 08:25140 km14 km
4.024.02.2026 22:5772.8 km58 km

Method and sources

What this page counts
An earthquake appears here when its epicentre is within a magnitude-dependent distance of this place's border: 15 km up to M4, 30 km to M5, 60 km to M6, 100 km to M7, and 150 km at M7 and above. The rule exists because a large earthquake concerns neighbouring provinces too — the 17 August 1999 epicentre was in the Gulf of İzmit, on no province's land at all.
Location precision
Epicentre uncertainty is typically 1–10 km, and larger for older records. That is why this site breaks data down to districts but not to neighbourhoods or villages — the data does not support that distinction.
Magnitude scales
The catalogues use more than twelve magnitude scales (Mw, ML, mb, Md…) and they are not equivalent. Values are shown on the scale the source reported; they are not converted.
Deduplication
The same earthquake is published by several catalogues. Records within 20 seconds and 100 km whose magnitudes differ by no more than 1.2 are treated as one event; the primary record is chosen by catalogue priority.
Updates
Recent earthquakes are fetched from four sources every five minutes. The historical archive is rebuilt infrequently.
Sources
USGS ComCat · ISC Bulletin · AFAD · Kandilli / KOERI · EMSC/CSEM
Reporting an error
If you spot a wrong record, write to us; we verify against the source and correct it.