EveryQuake
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Earthquakes in Riau

1,083 earthquakes catalogued in and around Riau between 1909 and 2026. Recorded measurements; not a forecast.

Last updated 4 August 2026 · merged from 5 catalogues
3.2
Latest earthquake · depth 89 km
03.08.2026 17:45 UTC · from centre 245 km
1,083
recorded earthquakes
M7.6
largest
1909–2026
record span
3.77
mean magnitude
634
epicentre inside the border

By year

Stacked by magnitude; one column per year.

0771551909: 1 (M5+)19091918: 1 (M5+)19181926: 2 (M5+)1927: 1 (M5+)19271936: 1 (M5+)19361943: 1 (M5+)19451946: 1 (M5+)195419631964: 2 (M5+)1965: 2 (M5+)1967: 2 (M5+)1968: 1 (M4–5)1968: 1 (M5+)1970: 1 (M4–5)1970: 1 (M5+)1971: 2 (M5+)1972: 2 (M4–5)19721973: 2 (M4–5)1973: 1 (M5+)1975: 2 (M5+)1976: 1 (M3–4)1976: 2 (M4–5)1976: 1 (M5+)1977: 2 (M5+)1978: 2 (M4–5)1979: 2 (M4–5)1979: 1 (M5+)1980: 1 (M4–5)1980: 2 (M5+)1981: 4 (M4–5)1981: 1 (M5+)19811982: 3 (M4–5)1983: 1 (M3–4)1983: 3 (M4–5)1983: 1 (M5+)1984: 3 (M4–5)1984: 3 (M5+)1985: 1 (M4–5)1986: 4 (M4–5)1986: 4 (M5+)1987: 1 (M4–5)1988: 1 (M4–5)1988: 2 (M5+)1989: 5 (M4–5)1989: 1 (M5+)1990: 2 (M4–5)19901991: 2 (M4–5)1991: 1 (M5+)1992: 5 (M4–5)1992: 1 (M5+)1993: 4 (M4–5)1993: 1 (M5+)1994: 3 (M5+)1995: 12 (M4–5)1995: 1 (M5+)1996: 2 (M3–4)1996: 4 (M4–5)1997: 1 (M3–4)1997: 18 (M4–5)1997: 2 (M5+)1998: 8 (M4–5)1998: 1 (M5+)1999: 5 (M4–5)1999: 1 (M5+)19992000: 4 (M4–5)2001: 1 (M3–4)2001: 7 (M4–5)2002: 1 (M3–4)2002: 9 (M4–5)2003: 1 (M<3)2003: 8 (M4–5)2003: 2 (M5+)2004: 2 (M<3)2004: 1 (M3–4)2004: 11 (M4–5)2004: 3 (M5+)2005: 1 (M<3)2005: 41 (M4–5)2005: 5 (M5+)2006: 1 (M<3)2006: 5 (M3–4)2006: 15 (M4–5)2006: 1 (M5+)2007: 3 (M<3)2007: 7 (M3–4)2007: 24 (M4–5)2007: 7 (M5+)2008: 3 (M3–4)2008: 11 (M4–5)2008: 2 (M5+)20082009: 4 (M3–4)2009: 29 (M4–5)2009: 8 (M5+)2010: 1 (M3–4)2010: 14 (M4–5)2010: 3 (M5+)2011: 8 (M4–5)2012: 1 (M3–4)2012: 10 (M4–5)2012: 1 (M5+)2013: 1 (M3–4)2013: 12 (M4–5)2013: 1 (M5+)2014: 1 (M3–4)2014: 9 (M4–5)2015: 2 (M3–4)2015: 4 (M4–5)2016: 1 (M3–4)2016: 10 (M4–5)2016: 1 (M5+)2017: 5 (M3–4)2017: 7 (M4–5)2017: 1 (M5+)20172018: 3 (M3–4)2018: 9 (M4–5)2018: 2 (M5+)2019: 1 (M<3)2019: 6 (M3–4)2019: 9 (M4–5)2019: 1 (M5+)2020: 21 (M<3)2020: 22 (M3–4)2020: 13 (M4–5)2021: 13 (M<3)2021: 27 (M3–4)2021: 14 (M4–5)2021: 1 (M5+)2022: 40 (M<3)2022: 88 (M3–4)2022: 26 (M4–5)2022: 1 (M5+)2023: 23 (M<3)2023: 34 (M3–4)2023: 7 (M4–5)2023: 2 (M5+)2024: 25 (M<3)2024: 27 (M3–4)2024: 12 (M4–5)2024: 1 (M5+)2025: 70 (M<3)2025: 45 (M3–4)2025: 12 (M4–5)2025: 1 (M5+)2026: 43 (M<3)2026: 17 (M3–4)2026: 4 (M4–5)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
7.630.09.2009 10:1691 km271 km
7.509.06.1943 03:0610 km220 km
7.308.05.1946 05:2035 km357 km
7.203.06.1909 18:4035 km322 km
7.104.02.1971 15:3333.2 km358 km
7.013.09.2007 03:3523 km421 km
7.001.04.1998 17:5643.7 km324 km
6.728.06.1926 03:2315 km88 km
6.721.05.1967 18:45178.7 km189 km
6.706.10.1995 18:0929.8 km303 km
6.720.09.2007 08:3129.6 km362 km
6.710.04.2005 10:2932.6 km375 km
6.716.08.2009 07:3830 km372 km
6.513.09.2007 02:3031.3 km369 km
6.522.09.1918 09:5535 km319 km

Latest earthquakes

MagnitudeDateDepthDistance
3.203.08.2026 17:4589 km245 km
2.802.08.2026 17:46119 km226 km
3.302.08.2026 14:3038 km277 km
3.118.07.2026 04:585 km208 km
2.918.07.2026 03:107 km215 km
3.018.07.2026 03:0110 km224 km
2.517.07.2026 19:1710 km226 km
4.311.07.2026 10:33176 km227 km
2.709.07.2026 11:1316 km228 km
3.108.07.2026 11:1710 km161 km
2.919.06.2026 10:1820 km293 km
3.119.06.2026 10:1455 km280 km
2.916.06.2026 05:31185 km222 km
2.811.06.2026 17:0710 km187 km
2.511.06.2026 09:356 km226 km
4.308.06.2026 06:39111.5 km237 km
2.506.06.2026 11:2617 km230 km
3.829.05.2026 08:54167.6 km208 km
2.923.05.2026 10:0010 km237 km
3.423.05.2026 03:055 km230 km
3.023.05.2026 00:3611 km231 km
2.615.05.2026 20:075 km216 km
2.615.05.2026 01:51157 km210 km
2.513.05.2026 23:3517 km233 km
2.813.05.2026 21:1171 km259 km
2.706.05.2026 06:0810 km235 km
3.003.05.2026 11:41194 km200 km
4.001.05.2026 05:17199.9 km184 km
2.626.04.2026 02:4212 km231 km
2.917.04.2026 21:108 km269 km
2.817.04.2026 14:31150 km219 km
2.509.04.2026 01:48122 km213 km
2.707.04.2026 13:1656 km277 km
2.706.04.2026 07:513 km278 km
2.603.04.2026 10:5871 km250 km
2.629.03.2026 07:2853 km277 km
2.828.03.2026 23:3530 km276 km
2.625.03.2026 19:0499 km242 km
2.625.03.2026 17:06114 km204 km
4.122.03.2026 05:2110 km237 km
3.122.03.2026 05:1610 km268 km
2.519.03.2026 13:549 km225 km
3.214.03.2026 10:0710 km139 km
2.812.03.2026 10:203 km235 km
3.507.03.2026 20:47185 km189 km
2.504.03.2026 09:149 km256 km
3.801.03.2026 05:22217 km104 km
2.924.02.2026 21:2330 km293 km
3.704.02.2026 21:5210 km218 km
3.101.02.2026 07:5510 km220 km
2.530.01.2026 14:3810 km220 km
2.729.01.2026 05:3815 km233 km
2.523.01.2026 17:138 km230 km
2.723.01.2026 14:4071 km239 km
3.922.01.2026 02:3962.7 km270 km
2.621.01.2026 07:2210 km220 km
2.520.01.2026 23:4810 km204 km
2.512.01.2026 18:4624 km233 km
2.610.01.2026 06:3410 km196 km
2.706.01.2026 08:28117 km229 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.