EveryQuake

Earthquakes in Maryland

252 earthquakes catalogued in and around Maryland between 1906 and 2026. Recorded measurements; not a forecast.

Last updated 4 August 2026 · merged from 5 catalogues
No records in the last 30 days.
252
recorded earthquakes
M5.7
largest
1906–2026
record span
2.08
mean magnitude
167
epicentre inside the border

By year

Stacked by magnitude; one column per year.

030601906: 1 (M3–4)19061907: 1 (M4–5)1909: 1 (M3–4)19161918: 1 (M4–5)19261929: 1 (M3–4)19361946195619661973: 1 (M3–4)1974: 1 (M<3)1976: 1 (M<3)19761977: 1 (M<3)1978: 1 (M<3)1978: 1 (M3–4)1980: 4 (M<3)1981: 3 (M<3)1982: 5 (M<3)1983: 2 (M<3)1984: 3 (M<3)1984: 2 (M4–5)1985: 2 (M<3)1986: 4 (M<3)19861987: 2 (M<3)1990: 3 (M<3)1990: 1 (M3–4)1991: 3 (M<3)1992: 1 (M<3)1993: 21 (M<3)1994: 2 (M<3)1995: 3 (M<3)1996: 5 (M<3)19961997: 2 (M<3)1998: 5 (M<3)2001: 1 (M<3)2001: 1 (M3–4)2003: 1 (M4–5)2004: 2 (M<3)2005: 2 (M<3)20062007: 1 (M<3)2008: 1 (M<3)2009: 3 (M<3)2010: 2 (M<3)2010: 2 (M3–4)2011: 54 (M<3)2011: 5 (M3–4)2011: 1 (M5+)2012: 23 (M<3)2012: 2 (M3–4)2013: 9 (M<3)2014: 7 (M<3)2015: 10 (M<3)2016: 5 (M<3)2016: 1 (M3–4)20162017: 5 (M<3)2017: 1 (M4–5)2018: 2 (M<3)2019: 4 (M<3)2020: 1 (M<3)2021: 6 (M<3)2022: 6 (M<3)2023: 4 (M<3)2024: 4 (M<3)2025: 1 (M<3)2026: 1 (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
5.723.08.2011 17:517.7 km121 km
4.610.04.1918 01:0899 km
4.509.12.2003 20:5910 km144 km
4.217.08.1984 18:058.6 km140 km
4.223.04.1984 01:365 km145 km
4.130.11.2017 21:473.5 km163 km
4.011.02.1907 13:22154 km
3.925.08.2011 05:0710 km115 km
3.828.02.1973 08:2114 km187 km
3.726.12.1929 02:56134 km
3.724.08.2011 00:044 km115 km
3.602.04.1909 07:2590 km
3.616.07.2010 09:047 km50 km
3.424.08.2011 04:450.1 km126 km
3.401.09.2011 09:093.4 km113 km

Latest earthquakes

MagnitudeDateDepthDistance
2.415.06.2026 15:025 km121 km
2.527.10.2025 21:178.5 km54 km
1.828.11.2024 04:390.3 km117 km
2.328.10.2024 23:449.8 km196 km
1.825.06.2024 03:226.2 km42 km
2.302.01.2024 05:515 km30 km
2.223.10.2023 21:048.5 km176 km
2.422.10.2023 08:103.5 km178 km
2.215.10.2023 22:192.4 km178 km
2.609.02.2023 01:2111.2 km211 km
2.012.10.2022 03:492.5 km66 km
1.630.05.2022 16:110 km124 km
2.330.05.2022 02:035.5 km124 km
2.329.05.2022 19:127 km124 km
1.820.05.2022 04:004.7 km117 km
2.412.04.2022 19:199.3 km112 km
2.328.08.2021 06:4312.1 km167 km
1.715.08.2021 05:064.8 km72 km
2.104.08.2021 06:106.6 km48 km
1.627.06.2021 05:535 km72 km
2.625.06.2021 19:402.5 km72 km
2.316.01.2021 05:492.1 km188 km
2.703.02.2020 10:047.9 km119 km
1.805.11.2019 05:514.1 km117 km
0.625.07.2019 04:575 km158 km
2.113.06.2019 14:490 km116 km
1.617.01.2019 04:265 km111 km
1.317.08.2018 03:245 km33 km
1.705.07.2018 07:423.1 km114 km
1.213.12.2017 00:452.7 km166 km
4.130.11.2017 21:473.5 km163 km
1.511.11.2017 15:554 km52 km
1.530.10.2017 00:342 km54 km
2.425.08.2017 03:3111.8 km90 km
1.805.08.2017 05:265 km134 km
2.222.12.2016 11:228.5 km110 km
1.625.09.2016 04:310.5 km117 km
1.925.09.2016 03:342.9 km117 km
2.021.04.2016 02:093.1 km105 km
2.327.03.2016 08:005.1 km121 km
3.017.01.2016 19:124.7 km73 km
1.927.09.2015 18:049.1 km106 km
1.318.09.2015 19:240.3 km110 km
1.514.09.2015 03:390.6 km100 km
1.414.09.2015 02:580.1 km106 km
1.514.09.2015 01:080.1 km105 km
2.213.09.2015 01:390 km115 km
1.824.08.2015 08:422 km118 km
1.909.08.2015 02:077 km55 km
2.227.06.2015 05:081.8 km117 km
2.815.03.2015 07:024.9 km113 km
1.927.07.2014 04:055.9 km113 km
2.225.07.2014 16:540.1 km114 km
1.719.07.2014 04:154.4 km98 km
0.619.06.2014 04:095.2 km225 km
1.506.06.2014 17:105.7 km116 km
1.705.06.2014 01:254.7 km116 km
1.303.06.2014 00:342.8 km108 km
1.605.12.2013 22:529.8 km110 km
1.909.11.2013 10:595.4 km117 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.