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Earthquakes in Guanacaste

3,062 earthquakes catalogued in and around Guanacaste between 1900 and 2026. Recorded measurements; not a forecast.

Last updated 4 August 2026 · merged from 5 catalogues
3.0
Latest earthquake · depth 8 km
04.08.2026 04:21 UTC · from centre 45 km
3,062
recorded earthquakes
M7.6
largest
1900–2026
record span
3.75
mean magnitude
1,592
epicentre inside the border

By year

Stacked by magnitude; one column per year.

01513031900: 1 (M5+)19001901: 1 (M5+)1905: 1 (M5+)1907: 2 (M5+)1909: 1 (M5+)1910: 1 (M5+)19101913: 1 (M5+)1916: 2 (M5+)1919: 1 (M5+)19201922: 1 (M5+)1924: 6 (M5+)19301931: 2 (M5+)1932: 1 (M5+)1934: 1 (M5+)1935: 1 (M5+)1936: 1 (M5+)1939: 4 (M5+)1940: 3 (M5+)19401941: 4 (M5+)1943: 1 (M5+)1944: 1 (M5+)1948: 1 (M5+)1949: 1 (M5+)1950: 3 (M5+)19501951: 2 (M5+)1952: 5 (M5+)1955: 1 (M5+)1956: 3 (M5+)19601961: 1 (M5+)1964: 5 (M4–5)1964: 1 (M5+)1965: 1 (M3–4)1965: 4 (M4–5)1966: 3 (M4–5)1966: 1 (M5+)1967: 1 (M3–4)1967: 7 (M4–5)1967: 3 (M5+)1969: 3 (M4–5)1969: 2 (M5+)1970: 4 (M4–5)1970: 1 (M5+)19701971: 2 (M4–5)1971: 1 (M5+)1972: 1 (M4–5)1973: 5 (M4–5)1973: 2 (M5+)1974: 5 (M4–5)1974: 4 (M5+)1975: 6 (M4–5)1975: 2 (M5+)1976: 1 (M4–5)1976: 4 (M5+)1977: 6 (M4–5)1977: 1 (M5+)1978: 1 (M3–4)1978: 8 (M4–5)1978: 4 (M5+)1979: 5 (M4–5)1980: 5 (M4–5)1980: 3 (M5+)19801981: 5 (M4–5)1981: 2 (M5+)1982: 9 (M4–5)1982: 2 (M5+)1983: 1 (M4–5)1983: 1 (M5+)1984: 1 (M3–4)1984: 7 (M4–5)1984: 2 (M5+)1985: 7 (M4–5)1985: 2 (M5+)1986: 13 (M4–5)1986: 1 (M5+)1987: 31 (M4–5)1987: 3 (M5+)1988: 1 (M3–4)1988: 34 (M4–5)1988: 2 (M5+)1989: 1 (M<3)1989: 1 (M3–4)1989: 26 (M4–5)1989: 3 (M5+)1990: 1 (M3–4)1990: 24 (M4–5)1990: 11 (M5+)19901991: 8 (M4–5)1991: 4 (M5+)1992: 1 (M3–4)1992: 26 (M4–5)1992: 3 (M5+)1993: 24 (M4–5)1993: 2 (M5+)1994: 18 (M4–5)1994: 3 (M5+)1995: 1 (M3–4)1995: 9 (M4–5)1995: 1 (M5+)1996: 2 (M3–4)1996: 10 (M4–5)1996: 3 (M5+)1997: 7 (M3–4)1997: 11 (M4–5)1997: 2 (M5+)1998: 3 (M3–4)1998: 10 (M4–5)1998: 2 (M5+)1999: 1 (M3–4)1999: 7 (M4–5)2000: 5 (M3–4)2000: 15 (M4–5)2000: 9 (M5+)20002001: 8 (M3–4)2001: 20 (M4–5)2001: 2 (M5+)2002: 1 (M<3)2002: 8 (M3–4)2002: 16 (M4–5)2002: 2 (M5+)2003: 21 (M4–5)2003: 4 (M5+)2004: 1 (M<3)2004: 2 (M3–4)2004: 19 (M4–5)2004: 4 (M5+)2005: 10 (M3–4)2005: 12 (M4–5)2005: 8 (M5+)2006: 2 (M<3)2006: 6 (M3–4)2006: 8 (M4–5)2006: 2 (M5+)2007: 4 (M<3)2007: 6 (M3–4)2007: 17 (M4–5)2008: 4 (M<3)2008: 5 (M3–4)2008: 12 (M4–5)2008: 3 (M5+)2009: 12 (M4–5)2009: 1 (M5+)2010: 1 (M3–4)2010: 15 (M4–5)2010: 3 (M5+)20102011: 2 (M<3)2011: 12 (M3–4)2011: 10 (M4–5)2011: 8 (M5+)2012: 1 (M<3)2012: 21 (M3–4)2012: 53 (M4–5)2012: 7 (M5+)2013: 3 (M3–4)2013: 21 (M4–5)2013: 2 (M5+)2014: 6 (M3–4)2014: 39 (M4–5)2014: 6 (M5+)2015: 1 (M3–4)2015: 16 (M4–5)2015: 5 (M5+)2016: 18 (M4–5)2016: 3 (M5+)2017: 7 (M3–4)2017: 13 (M4–5)2017: 3 (M5+)2018: 1 (M<3)2018: 122 (M3–4)2018: 38 (M4–5)2018: 7 (M5+)2019: 154 (M3–4)2019: 45 (M4–5)2019: 5 (M5+)2020: 1 (M<3)2020: 198 (M3–4)2020: 30 (M4–5)2020: 2 (M5+)20202021: 31 (M<3)2021: 176 (M3–4)2021: 39 (M4–5)2021: 9 (M5+)2022: 46 (M<3)2022: 156 (M3–4)2022: 40 (M4–5)2022: 2 (M5+)2023: 30 (M<3)2023: 160 (M3–4)2023: 24 (M4–5)2023: 3 (M5+)2024: 44 (M<3)2024: 222 (M3–4)2024: 27 (M4–5)2024: 10 (M5+)2025: 68 (M<3)2025: 100 (M3–4)2025: 41 (M4–5)2025: 5 (M5+)2026: 116 (M<3)2026: 51 (M3–4)2026: 25 (M4–5)2026: 4 (M5+)2026
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
7.605.09.2012 14:4220.7 km49 km
7.621.12.1939 20:5425 km116 km
7.505.10.1950 16:0997.9 km34 km
7.326.04.1916 02:2135 km65 km
7.325.03.1990 13:2221.2 km93 km
7.224.10.1956 14:4235 km189 km
7.224.04.1916 08:0235 km71 km
7.221.06.1900 20:520 km54 km
7.230.12.1907 05:260 km209 km
7.204.03.1924 10:0715 km175 km
7.116.08.1909 06:580 km157 km
7.108.10.1901 02:16—139 km
7.115.10.1967 08:00168.8 km170 km
7.006.12.1941 21:2415 km235 km
7.019.11.1948 01:0480 km210 km

Latest earthquakes

MagnitudeDateDepthDistance
3.004.08.2026 04:218 km45 km
2.704.08.2026 00:52156 km105 km
2.601.08.2026 08:2311 km38 km
3.628.07.2026 13:1255 km35 km
2.628.07.2026 09:37166 km94 km
2.526.07.2026 20:1921 km69 km
2.525.07.2026 21:1215 km111 km
2.625.07.2026 03:0641 km29 km
2.723.07.2026 23:17300 km49 km
2.623.07.2026 16:1219 km81 km
3.223.07.2026 15:498 km78 km
2.522.07.2026 10:2617 km32 km
3.622.07.2026 04:1520 km94 km
2.621.07.2026 06:4519 km27 km
2.621.07.2026 02:19300 km43 km
2.720.07.2026 19:3515 km32 km
3.120.07.2026 10:5519 km43 km
2.619.07.2026 16:3026 km69 km
2.519.07.2026 10:4320 km78 km
2.718.07.2026 04:5049 km67 km
3.118.07.2026 01:516 km9 km
3.117.07.2026 18:2815 km53 km
3.717.07.2026 16:0313 km38 km
3.717.07.2026 15:5914 km49 km
2.517.07.2026 02:58153 km53 km
3.416.07.2026 22:3317 km104 km
3.015.07.2026 14:3820 km54 km
2.615.07.2026 01:1326 km74 km
3.014.07.2026 00:0216 km90 km
4.313.07.2026 20:5714 km133 km
3.113.07.2026 10:2910 km54 km
2.911.07.2026 23:3316 km110 km
2.810.07.2026 19:0535 km69 km
2.509.07.2026 04:0720 km109 km
2.808.07.2026 12:537 km31 km
2.608.07.2026 09:22202 km66 km
5.207.07.2026 18:1123.7 km104 km
3.207.07.2026 12:513 km73 km
3.007.07.2026 04:1732 km98 km
2.904.07.2026 03:2819 km51 km
3.304.07.2026 03:258 km80 km
2.703.07.2026 00:28196 km91 km
2.802.07.2026 20:1011 km24 km
2.802.07.2026 17:147 km30 km
3.030.06.2026 19:53200 km108 km
2.529.06.2026 21:2821 km31 km
2.629.06.2026 21:1529 km62 km
2.927.06.2026 18:0410 km34 km
2.926.06.2026 11:53300 km22 km
2.825.06.2026 06:47127 km106 km
2.724.06.2026 07:44212 km82 km
2.723.06.2026 11:33150 km111 km
2.923.06.2026 00:2118 km115 km
3.022.06.2026 17:5210 km45 km
3.622.06.2026 15:5629 km74 km
2.822.06.2026 05:14192 km51 km
2.520.06.2026 17:524 km34 km
2.619.06.2026 23:4115 km110 km
2.817.06.2026 03:3218 km114 km
2.516.06.2026 21:2924 km59 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.