EveryQuake

Earthquakes in Biscay

464 earthquakes catalogued in and around Biscay between 1938 and 2026. Recorded measurements; not a forecast.

Last updated 4 August 2026 · merged from 5 catalogues
2.1
Latest earthquake · depth 8.3 km
01.08.2026 03:55 UTC · from centre 26 km
464
recorded earthquakes
M5.2
largest
1938–2026
record span
1.54
mean magnitude
230
epicentre inside the border

By year

Stacked by magnitude; one column per year.

040811938: 1 (M5+)19381945195219591966197319801986: 1 (M<3)1986: 1 (M3–4)19871990: 2 (M3–4)1991: 3 (M3–4)1992: 1 (M3–4)1994: 1 (M<3)19941996: 1 (M<3)1997: 1 (M<3)1997: 3 (M3–4)1997: 1 (M4–5)1998: 4 (M<3)1999: 6 (M<3)2000: 2 (M<3)2000: 1 (M3–4)2001: 1 (M<3)20012002: 2 (M<3)2002: 1 (M3–4)2004: 4 (M<3)2005: 3 (M<3)2006: 60 (M<3)2006: 2 (M3–4)2007: 68 (M<3)2008: 38 (M<3)20082009: 75 (M<3)2009: 1 (M3–4)2010: 81 (M<3)2011: 40 (M<3)2011: 1 (M3–4)2015: 1 (M<3)20152016: 1 (M3–4)2017: 2 (M3–4)2018: 1 (M3–4)2020: 3 (M<3)2021: 4 (M<3)2022: 5 (M<3)20222023: 7 (M<3)2024: 14 (M<3)2025: 11 (M<3)2025: 1 (M4–5)2026: 8 (M<3)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
5.216.10.1938 02:1935 km55 km
4.230.08.1997 04:0110 km48 km
4.007.12.2025 23:1010 km48 km
3.930.08.1997 04:1210 km51 km
3.717.08.2011 18:215 km38 km
3.711.07.2006 14:280 km39 km
3.518.03.2000 11:5310 km37 km
3.317.11.2006 12:210 km59 km
3.319.08.1997 16:2710 km23 km
3.205.10.2017 06:225 km44 km
3.206.09.1990 06:4410 km45 km
3.117.04.1990 03:3110 km39 km
3.124.02.1986 23:4910 km26 km
3.103.09.1997 17:515 km52 km
3.125.08.2017 07:5610 km45 km

Latest earthquakes

MagnitudeDateDepthDistance
2.101.08.2026 03:558.3 km26 km
1.509.07.2026 11:330 km36 km
1.731.05.2026 21:580 km38 km
1.603.05.2026 15:5812.2 km36 km
1.501.05.2026 18:1612.7 km40 km
1.716.04.2026 15:4511.9 km24 km
1.930.01.2026 12:020 km62 km
2.030.01.2026 08:0023.3 km32 km
4.007.12.2025 23:1010 km48 km
1.506.11.2025 13:535.6 km32 km
1.501.11.2025 01:1410.2 km32 km
1.524.10.2025 03:2617.5 km56 km
1.714.07.2025 02:5311.8 km21 km
1.611.07.2025 20:5340.9 km32 km
1.509.06.2025 10:4221.1 km30 km
1.704.06.2025 00:2512.4 km24 km
1.628.02.2025 21:342.4 km27 km
1.619.02.2025 12:060 km27 km
1.813.01.2025 23:188.5 km18 km
2.306.01.2025 05:130 km57 km
1.817.11.2024 10:337.7 km30 km
2.326.10.2024 00:1310 km34 km
1.722.09.2024 21:565.8 km16 km
1.813.09.2024 11:430 km34 km
1.627.08.2024 22:3211 km37 km
2.022.08.2024 04:374.8 km29 km
1.617.08.2024 03:2713.8 km23 km
1.903.08.2024 04:0820 km23 km
1.526.07.2024 23:509.3 km48 km
1.613.07.2024 19:075.8 km39 km
1.911.04.2024 01:202.3 km23 km
1.619.03.2024 03:360 km38 km
2.015.03.2024 15:441.5 km36 km
1.607.02.2024 13:1222.6 km55 km
1.729.12.2023 22:5310.4 km19 km
1.529.09.2023 17:563.9 km33 km
1.809.07.2023 08:521.5 km44 km
1.809.07.2023 00:5811.1 km33 km
1.819.05.2023 22:1714 km45 km
1.711.05.2023 03:286 km54 km
1.610.01.2023 12:2410 km31 km
1.528.05.2022 21:4610 km46 km
2.421.04.2022 22:034 km22 km
2.020.04.2022 02:076 km23 km
2.109.04.2022 14:1523 km46 km
1.507.02.2022 04:0510 km28 km
1.612.12.2021 03:3710 km18 km
1.930.10.2021 11:4810 km24 km
1.827.03.2021 02:2210 km38 km
2.203.03.2021 00:161 km39 km
2.221.11.2020 23:2412 km38 km
2.420.11.2020 12:453 km37 km
2.917.06.2020 13:3415 km58 km
3.022.03.2018 00:488 km28 km
3.205.10.2017 06:225 km44 km
3.125.08.2017 07:5610 km45 km
3.028.10.2016 15:5611 km55 km
2.609.11.2015 20:3410 km26 km
1.529.12.2011 01:240 km53 km
1.629.12.2011 00:170 km53 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.