EveryQuake

Earthquakes in Alajuela

2,537 earthquakes catalogued in and around Alajuela between 1900 and 2026.

Last updated 14 October 2026 · merged from 5 catalogues
2.7
Latest earthquake · depth 10 km
13.10.2026 14:33 UTC · from centre 65 km
2,537
recorded earthquakes
M7.6
largest
1900–2026
record span
3.70
mean magnitude
1,485
epicentre inside the border

By year

Stacked by magnitude; one column per year.

01222441900: 1 (M5+)19001901: 1 (M5+)1905: 1 (M5+)1907: 2 (M5+)1909: 1 (M5+)1910: 1 (M5+)19101916: 2 (M5+)19201924: 6 (M5+)19301931: 2 (M5+)1935: 1 (M5+)1936: 2 (M5+)1939: 4 (M5+)1940: 3 (M5+)19401941: 2 (M5+)1943: 1 (M5+)1948: 1 (M5+)1949: 1 (M5+)1950: 3 (M5+)19501951: 1 (M5+)1952: 4 (M5+)1955: 1 (M5+)1956: 2 (M5+)19601964: 3 (M4–5)1965: 1 (M3–4)1965: 3 (M4–5)1966: 4 (M4–5)1966: 2 (M5+)1967: 3 (M4–5)1967: 2 (M5+)1968: 1 (M4–5)1969: 3 (M4–5)1970: 2 (M4–5)1970: 1 (M5+)19701971: 2 (M5+)1972: 1 (M4–5)1973: 5 (M4–5)1973: 2 (M5+)1974: 1 (M4–5)1974: 2 (M5+)1975: 3 (M4–5)1975: 1 (M5+)1976: 3 (M4–5)1976: 3 (M5+)1977: 4 (M4–5)1977: 1 (M5+)1978: 8 (M4–5)1978: 3 (M5+)1979: 3 (M4–5)1980: 3 (M4–5)1980: 2 (M5+)19801981: 4 (M4–5)1981: 1 (M5+)1982: 2 (M4–5)1982: 2 (M5+)1983: 3 (M4–5)1983: 2 (M5+)1984: 1 (M3–4)1984: 3 (M4–5)1985: 4 (M4–5)1985: 2 (M5+)1986: 4 (M4–5)1987: 19 (M4–5)1987: 1 (M5+)1988: 2 (M3–4)1988: 16 (M4–5)1988: 3 (M5+)1989: 1 (M<3)1989: 14 (M4–5)1989: 3 (M5+)1990: 1 (M3–4)1990: 37 (M4–5)1990: 8 (M5+)19901991: 6 (M4–5)1991: 7 (M5+)1992: 16 (M4–5)1992: 1 (M5+)1993: 18 (M4–5)1993: 1 (M5+)1994: 9 (M4–5)1994: 2 (M5+)1995: 6 (M4–5)1996: 3 (M3–4)1996: 3 (M4–5)1996: 3 (M5+)1997: 2 (M3–4)1997: 4 (M4–5)1998: 3 (M3–4)1998: 4 (M4–5)1998: 1 (M5+)1999: 2 (M3–4)1999: 6 (M4–5)1999: 2 (M5+)2000: 4 (M3–4)2000: 8 (M4–5)2000: 6 (M5+)20002001: 5 (M3–4)2001: 17 (M4–5)2001: 1 (M5+)2002: 1 (M<3)2002: 7 (M3–4)2002: 13 (M4–5)2002: 1 (M5+)2003: 13 (M4–5)2003: 3 (M5+)2004: 1 (M<3)2004: 1 (M3–4)2004: 18 (M4–5)2004: 2 (M5+)2005: 4 (M3–4)2005: 16 (M4–5)2005: 5 (M5+)2006: 2 (M<3)2006: 4 (M3–4)2006: 7 (M4–5)2006: 1 (M5+)2007: 2 (M3–4)2007: 13 (M4–5)2008: 3 (M<3)2008: 3 (M3–4)2008: 6 (M4–5)2008: 2 (M5+)2009: 1 (M3–4)2009: 20 (M4–5)2009: 1 (M5+)2010: 1 (M3–4)2010: 15 (M4–5)2010: 4 (M5+)20102011: 1 (M<3)2011: 10 (M3–4)2011: 13 (M4–5)2011: 7 (M5+)2012: 11 (M3–4)2012: 35 (M4–5)2012: 6 (M5+)2013: 2 (M3–4)2013: 20 (M4–5)2013: 1 (M5+)2014: 3 (M3–4)2014: 25 (M4–5)2014: 5 (M5+)2015: 2 (M3–4)2015: 17 (M4–5)2015: 1 (M5+)2016: 12 (M4–5)2016: 4 (M5+)2017: 1 (M<3)2017: 11 (M3–4)2017: 11 (M4–5)2017: 3 (M5+)2018: 1 (M<3)2018: 166 (M3–4)2018: 26 (M4–5)2018: 5 (M5+)2019: 1 (M<3)2019: 145 (M3–4)2019: 30 (M4–5)2019: 1 (M5+)2020: 166 (M3–4)2020: 26 (M4–5)2020: 2 (M5+)20202021: 12 (M<3)2021: 167 (M3–4)2021: 15 (M4–5)2021: 3 (M5+)2022: 21 (M<3)2022: 158 (M3–4)2022: 27 (M4–5)2023: 14 (M<3)2023: 171 (M3–4)2023: 45 (M4–5)2023: 2 (M5+)2024: 23 (M<3)2024: 192 (M3–4)2024: 25 (M4–5)2024: 4 (M5+)2025: 49 (M<3)2025: 84 (M3–4)2025: 26 (M4–5)2025: 3 (M5+)2026: 105 (M<3)2026: 43 (M3–4)2026: 17 (M4–5)2026: 3 (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 km80 km
7.622.04.1991 21:5615.7 km207 km
7.621.12.1939 20:5425 km66 km
7.505.10.1950 16:0997.9 km27 km
7.326.04.1916 02:2135 km54 km
7.325.03.1990 13:2221.2 km69 km
7.230.12.1907 05:260 km247 km
7.221.06.1900 20:520 km91 km
7.224.10.1956 14:4235 km236 km
7.224.04.1916 08:0235 km65 km
7.204.03.1924 10:0715 km121 km
7.116.08.1909 06:580 km101 km
7.108.10.1901 02:16—196 km
7.115.10.1967 08:00168.8 km202 km
7.006.12.1941 21:2415 km216 km

Latest earthquakes

MagnitudeDateDepthDistance
2.713.10.2026 14:3310 km65 km
2.513.10.2026 09:191 km54 km
2.613.10.2026 07:2451 km104 km
2.613.10.2026 02:1610 km65 km
3.812.10.2026 13:4817 km101 km
3.212.10.2026 01:19300 km64 km
2.810.10.2026 11:53199 km12 km
2.509.10.2026 18:1410 km72 km
2.602.10.2026 18:50171 km59 km
3.101.10.2026 16:015 km50 km
2.730.09.2026 03:3564 km43 km
2.527.09.2026 18:1350 km95 km
2.927.09.2026 11:0111 km79 km
2.627.09.2026 05:4939 km42 km
2.820.09.2026 22:46198 km72 km
2.620.09.2026 07:05152 km54 km
3.017.09.2026 15:2459 km34 km
2.513.09.2026 18:4940 km64 km
2.913.09.2026 16:1511 km113 km
2.509.09.2026 13:33100 km88 km
2.806.09.2026 04:1910 km34 km
3.405.09.2026 21:074 km50 km
4.504.09.2026 21:4198 km97 km
2.731.08.2026 06:2010 km11 km
3.427.08.2026 19:2946 km23 km
3.127.08.2026 04:5910 km79 km
2.626.08.2026 22:5129 km80 km
2.524.08.2026 18:1745 km70 km
4.624.08.2026 07:389 km104 km
4.924.08.2026 07:3710 km110 km
3.323.08.2026 01:594 km46 km
3.221.08.2026 21:0247 km101 km
2.816.08.2026 23:148 km37 km
2.515.08.2026 22:4610 km94 km
2.908.08.2026 12:13151 km52 km
2.607.08.2026 07:59300 km75 km
3.607.08.2026 06:0019 km92 km
2.505.08.2026 13:4415 km51 km
3.605.08.2026 10:1566 km94 km
3.004.08.2026 04:218 km23 km
3.002.08.2026 14:1037 km24 km
3.628.07.2026 13:1255 km26 km
2.627.07.2026 01:10103 km41 km
2.526.07.2026 20:1921 km83 km
2.525.07.2026 21:1215 km80 km
3.525.07.2026 05:284 km82 km
2.625.07.2026 03:0641 km85 km
2.723.07.2026 23:17300 km90 km
2.623.07.2026 16:1219 km59 km
3.223.07.2026 15:498 km56 km
3.023.07.2026 13:575 km81 km
2.522.07.2026 10:2617 km86 km
3.622.07.2026 04:1520 km83 km
2.621.07.2026 06:4519 km85 km
2.621.07.2026 02:19300 km35 km
2.720.07.2026 19:3515 km79 km
2.519.07.2026 10:4320 km64 km
3.118.07.2026 01:516 km54 km
2.517.07.2026 02:58153 km68 km
3.113.07.2026 10:2910 km46 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.