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Earthquakes in Appenzell Ausserrhoden

554 earthquakes catalogued in and around Appenzell Ausserrhoden between 1911 and 2026. Recorded measurements; not a forecast.

Last updated 4 August 2026 · merged from 5 catalogues
2.4
Latest earthquake · depth 1.8 km
24.07.2026 16:33 UTC · from centre 26 km
554
recorded earthquakes
M6.2
largest
1911–2026
record span
1.92
mean magnitude
92
epicentre inside the border

By year

Stacked by magnitude; one column per year.

023461911: 1 (M5+)19111920192919381947195619651971: 1 (M4–5)19741975: 1 (M3–4)1976: 1 (M4–5)1979: 1 (M3–4)1980: 1 (M<3)1982: 1 (M<3)1982: 1 (M3–4)1983: 1 (M<3)19831985: 1 (M<3)1986: 1 (M4–5)1987: 1 (M<3)1987: 4 (M3–4)1987: 1 (M4–5)1988: 1 (M<3)1989: 1 (M3–4)1990: 5 (M<3)1990: 3 (M3–4)1991: 4 (M<3)1991: 1 (M3–4)1992: 7 (M<3)1992: 7 (M3–4)1992: 3 (M4–5)19921993: 3 (M<3)1993: 2 (M3–4)1994: 3 (M<3)1995: 2 (M<3)1996: 3 (M<3)1996: 2 (M3–4)1996: 1 (M4–5)1997: 4 (M<3)1997: 3 (M3–4)1997: 1 (M4–5)1998: 41 (M<3)1998: 5 (M3–4)1999: 41 (M<3)1999: 1 (M3–4)2000: 15 (M<3)2000: 2 (M3–4)2000: 1 (M4–5)2001: 8 (M<3)2001: 1 (M3–4)20012002: 4 (M<3)2003: 17 (M<3)2003: 2 (M3–4)2004: 7 (M<3)2005: 8 (M<3)2006: 13 (M<3)2007: 16 (M<3)2008: 10 (M<3)2008: 1 (M3–4)2009: 31 (M<3)2009: 4 (M3–4)2009: 1 (M4–5)2010: 5 (M<3)2010: 1 (M3–4)20102011: 4 (M<3)2012: 7 (M<3)2013: 16 (M<3)2013: 2 (M3–4)2014: 5 (M<3)2014: 2 (M3–4)2015: 8 (M<3)2016: 10 (M<3)2017: 5 (M<3)2018: 13 (M<3)2018: 1 (M4–5)2019: 13 (M<3)20192020: 23 (M<3)2021: 14 (M<3)2022: 23 (M<3)2022: 2 (M3–4)2023: 24 (M<3)2024: 22 (M<3)2025: 35 (M<3)2026: 16 (M<3)2026: 1 (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
6.216.11.1911 21:2540 km107 km
4.529.09.1971 07:188 km42 km
4.504.01.2009 15:302.9 km21 km
4.415.05.1992 00:435 km13 km
4.408.05.1992 07:515 km13 km
4.422.11.1997 04:5610 km25 km
4.408.05.1992 06:445 km13 km
4.327.02.1986 12:0717 km49 km
4.326.03.1976 22:2821 km25 km
4.224.08.1996 02:3820 km31 km
4.226.04.2026 02:245 km25 km
4.228.10.1987 23:4912 km34 km
4.104.03.2000 15:4310 km11 km
4.017.01.2018 19:0710 km46 km
3.921.04.1998 02:3010 km19 km

Latest earthquakes

MagnitudeDateDepthDistance
2.424.07.2026 16:331.8 km26 km
1.012.07.2026 00:525.1 km28 km
1.305.07.2026 03:4526.4 km26 km
0.801.07.2026 00:312.3 km20 km
1.102.06.2026 12:36-0.4 km20 km
1.901.06.2026 19:311 km20 km
2.101.06.2026 18:181 km21 km
0.601.06.2026 03:021.1 km27 km
1.428.05.2026 06:472.4 km17 km
0.618.05.2026 01:554.2 km22 km
0.611.05.2026 01:040.7 km27 km
0.910.05.2026 17:381.9 km27 km
1.005.05.2026 17:183.7 km20 km
4.226.04.2026 02:245 km25 km
1.310.04.2026 06:552.8 km18 km
0.703.03.2026 04:050.6 km12 km
1.320.01.2026 11:004.4 km25 km
0.517.12.2025 03:42-1.8 km24 km
2.409.12.2025 15:116.6 km27 km
1.209.12.2025 09:2310.2 km26 km
2.905.12.2025 23:547.7 km8 km
1.021.11.2025 09:069.3 km22 km
1.219.11.2025 10:25-0.4 km16 km
1.427.10.2025 10:133.4 km18 km
0.921.10.2025 02:322.5 km25 km
1.511.09.2025 08:101.8 km21 km
1.514.08.2025 03:398.3 km22 km
1.013.08.2025 23:465.9 km22 km
1.613.08.2025 18:218.3 km22 km
1.913.08.2025 17:478.4 km22 km
1.513.08.2025 16:598.9 km21 km
1.613.08.2025 16:578.9 km21 km
1.913.08.2025 16:408.8 km22 km
1.613.08.2025 16:358.9 km22 km
1.913.08.2025 16:338.2 km22 km
0.904.08.2025 00:4626.4 km15 km
1.125.06.2025 18:105.6 km28 km
1.425.06.2025 12:006.4 km28 km
1.325.06.2025 11:327.4 km28 km
1.225.06.2025 00:228.2 km28 km
1.724.06.2025 23:558.2 km28 km
0.713.05.2025 00:325 km17 km
1.109.05.2025 09:334.8 km16 km
0.608.04.2025 03:093.3 km21 km
0.705.03.2025 04:214.7 km18 km
2.901.03.2025 12:3829.8 km20 km
1.224.02.2025 07:377.9 km20 km
1.522.02.2025 01:47-0.6 km19 km
1.115.02.2025 14:4911.3 km27 km
1.007.02.2025 21:206 km14 km
1.531.01.2025 01:267.8 km21 km
0.915.01.2025 01:505.3 km24 km
1.509.12.2024 11:02-1.5 km22 km
0.603.11.2024 17:512.6 km29 km
0.819.10.2024 21:061.2 km20 km
1.227.09.2024 12:0418 km27 km
0.926.09.2024 02:0625 km26 km
1.108.09.2024 10:216.8 km30 km
1.008.09.2024 04:536 km30 km
1.028.08.2024 11:5011 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.