EveryQuake
Türkçe

Earthquakes in Ostrobothnia

1,131 earthquakes catalogued in and around Ostrobothnia between 1992 and 2025. Recorded measurements; not a forecast.

Last updated 4 August 2026 · merged from 5 catalogues
No records in the last 30 days.
1,131
recorded earthquakes
M3.8
largest
1992–2025
record span
1.25
mean magnitude
980
epicentre inside the border

By year

Stacked by magnitude; one column per year.

01322641992: 1 (M3–4)1992199419961998: 3 (M<3)19982000: 1 (M3–4)200020022004: 1 (M<3)20042005: 1 (M<3)20062007: 233 (M<3)2008: 264 (M<3)20082009: 223 (M<3)2009: 1 (M3–4)2010: 197 (M<3)20102011: 185 (M<3)2012201420162018202020222023: 1 (M3–4)2024: 19 (M<3)20242025: 1 (M<3)
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
3.822.05.1992 23:0610 km130 km
3.624.08.2023 11:3112.3 km109 km
3.405.05.2009 21:555 km100 km
3.013.11.2000 15:080 km70 km
2.109.11.2010 11:120 km33 km
2.026.07.2010 09:060 km30 km
2.004.01.2011 13:380 km110 km
1.916.04.2008 08:590 km88 km
1.905.06.2009 14:190 km43 km
1.902.07.2009 14:590 km29 km
1.907.08.2007 10:310 km43 km
1.909.07.2010 09:280 km111 km
1.916.11.2009 12:350 km91 km
1.923.09.1998 22:000 km118 km
1.901.08.2011 14:570 km95 km

Latest earthquakes

MagnitudeDateDepthDistance
1.803.12.2025 19:270 km101 km
1.425.11.2024 09:1110 km36 km
1.218.11.2024 14:2710 km45 km
1.314.11.2024 08:5710 km120 km
1.807.11.2024 06:2610 km80 km
1.406.11.2024 12:5610 km112 km
1.206.11.2024 11:2210 km28 km
1.306.11.2024 09:4010 km32 km
1.305.11.2024 13:3710 km96 km
1.205.11.2024 12:5610 km111 km
1.431.10.2024 13:0410 km36 km
1.229.10.2024 09:1010 km6 km
1.228.10.2024 09:0710 km97 km
1.225.10.2024 07:1310 km46 km
1.424.10.2024 07:2410 km51 km
1.423.10.2024 10:5710 km68 km
1.616.10.2024 10:5910 km48 km
1.211.10.2024 14:1910 km57 km
1.210.10.2024 08:2110 km75 km
1.209.10.2024 06:3810 km46 km
3.624.08.2023 11:3112.3 km109 km
1.630.12.2011 09:060 km107 km
1.530.12.2011 08:250 km60 km
1.829.12.2011 16:322 km104 km
1.029.12.2011 07:280 km52 km
1.222.12.2011 13:030 km42 km
1.221.12.2011 09:530 km75 km
0.920.12.2011 12:560 km62 km
1.519.12.2011 13:270 km46 km
1.516.12.2011 10:380 km47 km
1.315.12.2011 14:140 km50 km
1.415.12.2011 13:400 km92 km
1.115.12.2011 12:030 km30 km
1.715.12.2011 09:410 km46 km
1.514.12.2011 13:080 km42 km
1.402.12.2011 08:570 km19 km
1.701.12.2011 11:280 km101 km
1.110.11.2011 07:400 km75 km
0.809.11.2011 13:110 km52 km
0.804.11.2011 08:460 km73 km
1.501.11.2011 14:380 km15 km
1.627.10.2011 06:080 km47 km
1.220.10.2011 11:510 km29 km
0.820.10.2011 07:000 km37 km
1.219.10.2011 12:550 km26 km
1.414.10.2011 07:420 km47 km
1.012.10.2011 12:000 km72 km
0.410.10.2011 13:1314.4 km124 km
1.407.10.2011 12:350 km21 km
0.905.10.2011 06:140 km74 km
1.704.10.2011 07:080 km43 km
0.730.09.2011 13:5610.7 km103 km
1.530.09.2011 09:310 km47 km
1.429.09.2011 10:430 km29 km
1.728.09.2011 06:510 km80 km
1.325.09.2011 13:550 km95 km
1.224.09.2011 09:320 km95 km
1.422.09.2011 18:410 km95 km
1.421.09.2011 16:410 km29 km
1.221.09.2011 10:480 km30 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.