Table S2 Data Used in This Study

Table S2 Data used in this study. The different columns correspond to: 1- internal code for computing purposes, known historical earthquakes from USGS catalogs and other sources are noted with * and used for catalog evaluation (see text and Fig. 2); 2-6- date and time the event has been felt (day=00 in case of ambiguity), 7-8- coordinates of the ship, 9- felt duration in seconds (0000 if unknown), 10- type of the event (S: just felt, K: shock against the P-wave, O: sudden change in the ocean level, Oc: vertical motion suggesting ocean foor or slope collapse, V: volcanic origin), 11- strengh from 1 (just felt) to 5 (acceleration > 1g), 12- reported noise (Y: noise reported, T: noise like thunder, R: rolling noise, N: nothing reported), 13- references, 14- ship name, and comments (e.g. felt area). References are: Rud: Rudolf, 1887b; Rud2: Rudolf, 1895; Dau: Daussy, Mal: Mallet, Per: Perrey, Fin: Findlay, Imr: Imray, all of them reported in Rudolf (1887b, 1895); Mon: Montessus de Ballore, 1908; New: added in this study (NewH: Hough, personal communication)

cod yr mo dy hr min lat N lon E dur type St Noise Ref. Ship name / comments

North Atlantic Ocean

9a 1723 12 31 23 00 38.77 -12.05 0000 S 4 N Per Gazelle

9ab* 1755 11 01 09 24 38.00 -10.78 0000 K 5 N Mal / Lisbon

9b 1755 11 01 00 00 36.72 -6.40 0000 K 5 N Rud Nancy

9b 1755 11 01 00 00 37.05 -11.50 0000 K 5 N Rud / Lisbon

9a 1755 11 18 04 15 42.63 -65.95 0000 O 1 N Mal Massaschusetts

9a 1761 03 31 11 58 44.38 -14.20 0000 S 1 N Mal Gosport / Portugal

9a 1761 03 31 11 45 38.07 -10.08 0090 S 1 N Mal

9a 1786 06 01 00 00 63.80 -22.70 0000 S 2 N Mal

9a 1807 06 06 04 00 38.77 -9.33 0000 S 3 N Mal / Lisbon

9a 1810 11 09 21 30 43.07 -70.70 0020 K 2 N Mal

9a 1813 09 18 11 30 28.27 -16.65 0045 S 2 N Mal

9a 1828 10 01 00 00 28.18 -15.42 0000 K 4 N Mal

9a 1816 02 02 12 40 34.25 -15.17 0120 K 1 N Mal / Lisbon

9a 1816 02 02 12 42 36.42 -16.08 0300 K 3 N Mal / Lisbon

9a 1838 09 27 03 20 31.67 -42.17 0030 K 5 T Mal La Claudine

9a 1838 10 09 14 00 27.62 -28.78 0000 S 3 N Per La Claudine

9a 1854 07 16 18 30 15.05 -45.18 0000 S 3 N Per Susan-Jane

9a 1856 01 26 15 00 35.78 -8.37 0000 S 4 N Per Webster

9a 1856 01 06 10 30 25.38 -48.25 0000 K 3 Y Rud2 Fusillier

9a 1858 11 11 07 45 37.50 -9.23 0015 K 4 T Mal Venus

9a 1860 01 13 15 00 50.12 -5.52 0005 K 2 N Per Ban

9a 1866 01 30 10 15 31.95 -38.40 0180 OK 5 Y Per Komet

9a 1866 01 30 20 00 31.95 -38.40 0000 S 2 Y Per Komet

9a 1870 04 26 00 00 29.83 -14.83 0000 O 1 N Rud2

9a 1870 04 26 00 00 39.83 -14.33 0000 S 2 N Rud2 Cottica

9a 1871 10 20 11 15 46.82 -71.23 0000 S 4 Y Rud2 Austrian

9a 1873 06 24 23 00 29.00 -23.80 0030 K 4 N Rud2 Cottica

9a 1876 11 19 8 30 21.27 -31.32 0010 O 4 N Rud

9a 1882 06 09 20 00 32.68 -39.83 0010 K 4 R Rud2 Arethusa /rumbl.thunder

9a 1883 05 10 06 00 29.87 -41.72 0010 K 2 R Rud2 Arethusa /rumbling sound

9a 1883 05 13 08 00 32.88 -41.70 0010 S 2 N Rud2 Eastern Monarch

9a 1883 10 24 20 00 23.13 -34.63 0000 K 3 N Rud Herman Friedrich

9a 1885 09 01 10 15 58.28 -32.42 0090 K 5 N Rud Tjalfe

9a* 1886 09 01 00 00 32.75 -79.87 0000 O 3 N Rud2 / Charleston

9b 1886 09 01 00 00 34.27 -75.13 0000 O 3 R Rud2 Willesden

9b 1886 09 01 00 00 35.25 -74.80 0000 O 2 T Rud2 Sam H. Crawford

9b 1886 09 01 00 00 32.87 -79.20 0000 K 2 N Rud2 Nina Mathilde

9a 1886 09 01 15 30 50.17 -1.67 0000 K 3 N Rud Wilhelmine

9a 1886 11 05 12 25 32.83 -78.38 0012 K 4 N Rud Arcot

9a 1887 01 24 00 00 27.65 -43.90 0005 S 2 N Rud2 St Lucie

9a 1887 04 01 00 00 17.63 -46.57 0060 VO 2 N Rud2 Petty

9a 1890 09 09 21 00 37.40 -16.92 0010 S 2 N Rud2 Caesarea

9a 1891 08 22 04 05 37.53 -13.53 0120 S 2 N Rud2 India

9a 1891 08 23 10 30 36.73 -59.78 0000 O 3 N Rud2 Robert Harrowing

Azores

9a 1846 02 25 00 00 38.75 -36.52 0000 S 3 N Per Le Cayennais

9a 1846 03 08 14 00 38.38 -34.17 0003 O 3 Y Per La Louise

9ab 1852 04 16 22 00 37.73 -25.67 0000 S 3 N Rud / S. Miguel

9b 1852 04 16 22 00 38.72 -27.33 0006 S 1 N Rud / Terceira

9b 1852 04 16 22 00 39.07 -28.07 0000 S 1 N Rud / Graciosa

9b 1852 04 16 22 00 38.52 -28.63 0003 S 1 N Rud / Fayal

9a 1853 03 13 00 00 38.15 -31.92 0000 S 1 N Fin

9a 1865 05 09 05 50 39.37 -20.70 0003 S 3 N Rud Martinho de Mello

9a 1884 12 18 03 00 38.85 -29.92 0900 S 3 N Rud Helen Isabel

9b* 1884 12 22 02 20 39.60 -24.38 0015 O 1 T Rud Ventilia

9b 1884 12 22 02 20 36.57 -22.43 0300 Oc 1 N Rud Carl

9b 1884 12 22 02 35 36.73 -21.28 0200 K 4-3 N Rud Elisabeth Rickmers

9b 1884 12 22 02 42 34.87 -19.67 0045 O 4 N Rud Alma

9b 1884 12 22 02 00 39.87 -28.56 0090 K 2 N Rud Emma Romer

9b 1884 12 22 02 00 34.57 -19.32 0080 V 1 Y Rud Belfast / thunder

9b 1884 12 22 03 00 40.52 -16.17 0000 S 2 N Rud Vega

9b 1884 12 22 03 00 36.80 -19.42 0000 S 4 N Rud Maroon

9a 1884 12 23 00 00 33.00 -18.7 0000 S 1 N New La Clementine

9a 1884 12 22 02 50 34.57 -19.32 0085 S 3 Y Rud2 Belfast

9a 1884 12 22 11 00 39.87 -28.57 0000 K 2 N Mon Emma Romer

9a 1890 09 28 15 30 44.82 -25.50 0000 S 2 N Rud2 Sierra Lucena

Cape Verde

9a 1854 06 16 01 00 18.30 -20.50 0002 S 3 N Per Comte Roger

9a 1864 10 14 19 30 20.72 -19.22 0000 S 1 N Rud Argo / 3 shocks

9a 1876 11 14 18 35 20.08 -19.35 0000 S 3 N Rud Anna Bertha

9a 1883 09 18 00 00 18.20 -21.0 0000 S 4 N Rud Ralph B.Peake

9a 1893 11 01 01 00 17.0 -26.8 0150 S 2 N Rud2 Nesaïa

9b 1893 11 01 01 10 15.0 -26.2 0020 S 2 N Rud2 Néréide

9b 1893 11 01 01 15 17.5 -26.2 0060 K 2 N Rud2 Gerda

9b 1893 11 01 01 20 17.5 -26.6 0030 K 2 N Rud2 Kepler

9b 1893 11 01 01 20 17.0 -26.0 0180 K 4 N Rud2 Othello

St-Paul Rock

9a 1853 12 11 15 30 0.90 -26.83 0000 K 1 N Fin Prince

9a 1855 09 15 00 00 1.50 -25.50 0000 S 2 N Fin Maid Of Judah

9a 1859 01 25 13 00 0.80 -29.27 0040 OK 5 T Fin Florence Nightingale

9a 1859 10 19 23 30 0.67 -29.33 0003 S 1 N Rud

9b 1859 12 29 22 00 0.98 -28.07 0060 K 1 N Rud Posadnik

9a 1859 12 30 23 00 0.58 -28.17 0000 S 1 N Rud Sea Serpent

9a 1860 08 05 13 30 1.18 -28.67 0180 K 1 N Per Progress

9a 1869 09 10 01 00 1.14 -27.59 0060 Oc 4 N Rud La Néréide / motion up

9a 1873 06 02 14 00 0.77 -29.10 0015 S 1 N Rud Charlotte

9a 1874 12 02 15 30 2.57 -31.18 0007 K 1 N Rud2 Newcastle

9a 1876 04 24 04 00 -0.65 -27.17 0000 K 3 N Rud2 Airlie

9a 1877 05 08 03 30 0.80 -28.63 0000 S 3 N Rud Suaheli

9a 1877 05 09 03 30 0.87 -28.30 0035 K 4 Y Rud2 Deubighshire

9a 1878 01 15 09 45 1.23 -28.20 0035 S 1 T Rud Wandrahm

9a 1878 03 02 11 00 -1.25 -25.50 0000 K 1 T Rud2 Rozelle

9a 1879 11 01 02 00 1.05 -27.83 0030 O 3 N Rud Livingstone

9a 1881 10 30 07 45 1.12 -26.23 0025 K 1 N Rud Euterpe

9a 1881 11 24 19 00 -0.88 -27.02 0000 S 1 N Rud Emanuel

9a 1881 11 25 02 50 -0.15 -26.57 0000 S 3 N Rud

9a 1883 1 28 19 47 1.63 -27.67 0060 K 3-4 T Rud Levuka

9a 1883 05 20 18 30 0.62 -25.97 0000 S 2 N Rud2 Timaru

9a 1883 10 24 04 30 0.45 -27.97 0000 S 2 N Rud Amaranth

9a 1883 12 05 19 00 -0.15 -27.53 0060 K 2 Y Rud2 Mikado

9a 1884 01 02 00 00 0.95 -29.43 0005 S 3 N Rud Christine

9a 1886 07 01 23 35 0.92 -29.57 0060 K 4 R Rud Thessaly

9a 1886 04 19 00 50 -1.45 -26.50 0015 K 3 N Rud2 Tilkhurst

9a 1886 07 01 00 00 0.00 -26.92 0000 K 2 N Rud2 Antwerp

9a 1886 11 16 00 00 0.83 -29.90 0018 K 3 Y Rud2 Bankfield

9a 1888 06 14 22 45 0.95 -28.95 0120 K 3 N Rud2 Middlesex

9a 1890 11 28 00 00 3.00 -27.00 0000 K 3 N Rud2 W.H.Wilson

9a 1891 01 07 21 30 2.40 -24.30 0000 S 2 N Rud2 Pallas

9a 1891 12 16 10 00 3.90 -32.57 0000 S 2 N Rud2 Indra

9a 1892 02 24 06 28 3.80 -32.50 0008 K 2 N Rud2 Germania

9a 1893 06 26 16 51 0.50 -25.80 0006 K 2 N Rud2 Lake Ontario

Equatorial Atlantic Ocean

9a 1747 10 17 00 00 -1.58 -17.83 0000 K 2 N Dau Le Prince

9a 1754 02 05 17 00 -0.33 -20.83 0000 K 3 N Dau La Silhouette

9a 1761 05 03 0 0 -0.38 -19.17 0000 S 1 N Dau Le Vailla

9a 1771 10 03 20 00 -0.70 -20.45 0000 K 4 N Dau Le Pacifique

9a 1806 05 19 00 00 -2.72 -21.50 0000 O 1 N Dau - dust

9a 1816 12 18 00 00 -0.38 -18.77 0000 K 1 N Dau Le Triton

9a 1831 04 12 12 40 -0.37 -21.11 0015 K 4 N Rud L'Aigle / noise

9a 1832 11 11 23 00 -0.37 -18.92 0000 K 4 N Dau La Seine

9a 1835 02 9 22 45 -0.95 -23.32 0000 K 1 N Dau Crown

9ab 1836 01 28 21 00 -0.67 -20.17 0180 K 4 N Rud Le Philantrope

9b 1836 01 28 21 00 -0.67 -20.33 0000 K 1 N Rud Saint Paul

9a 1836 01 28 00 00 -1.58 -20.75 0000 K 1 T Rud Henry Tanner

9a 1842 02 05 05 00 -0.95 -20.78 0060 K 4 N Rud Le Neptune

9a 1842 02 05 05 00 -0.50 -21.92 0000 K 1 N Rud Le Harrison

9a 1842 02 05 05 00 -0.43 -20.02 0060 K 4 N Mal Ann Mary

9a 1842 07 03 04 00 -1.12 -21.35 0240 K 3-4 Y Rud Sarah Bell

9a 1852 07 17 00 00 -3.50 -24.50 0600 V 3-4 N Rud Capt. Short / Hot water

9a 1852 10 13 00 00 0.16 -19.00 0900 Oc 5 Y Rud The Maries

9a 1855 02 00 00 00 0.67 -19.50 0030 K 1 N Imr

9a 1855 03 00 00 00 -0.28 -18.22 0000 S 1 N Imr

9b 1855 03 00 00 00 -0.42 -20.15 0000 S 3 N Per

9a 1855 03 11 18 16 2.00 -21.50 0180 K 4 T Rud Copernicus / thunder

9b 1855 03 11 00 00 2.10 -21.55 0000 O 1 N Rud Ottoline

9b 1855 03 11 18 30 3.00 -17.00 0000 S 4 N Rud Cesar

9b 1855 03 11 18 30 -0.95 -18.33 0120 K 4 T Rud Alma

9b 1855 03 11 18 58 3.70 -17.00 0000 S 3 N Rud Nassau

9a 1855 03 11 18 30 -0.90 -18.18 0060 K 3 N Rud2 Alma / aftershock

9a 1855 03 12 00 30 -0.98 -18.17 0000 S 2 N Rud2 Alma

9b 1855 03 12 00 30 -0.42 -18.00 0000 S 1 N Rud / aftershock

9ab 1855 04 06 00 00 -0.93 -22.48 0000 K 1 N Per Chyosolite

9b 1855 04 06 00 00 -0.70 -22.78 0000 S 1 N Per Pacifique

9b 1855 04 06 00 00 -0.95 -23.32 0000 K 1 N Per Crown Reef

9a 1856 03 00 00 00 -0.85 -19.43 0060 S 1 Y Imr

9a 1856 12 30 04 15 -0.17 -19.25 0120 K 4 Y Per Regina Coeli

9a 1858 03 14 05 00 -1.30 -24.23 0000 K 4 N Rud C. Anthonie /2 aftersk

9a 1858 07 10 00 00 -0.85 -23.40 0300 O 3 N Rud Cosmopoliet

9a 1859 03 13 00 00 0.03 -19.00 0900 Oc 5 Y Rud Watch of the Wave

9a 1861 02 20 19 30 -0.51 -18.12 0060 O 5 Y Dau La Félicie

9ab 1861 03 20 19 00 0.45 -20.50 0000 K 5 N Fin Dallas

9b 1861 03 20 19 15 0.33 -20.58 0300 K 5 T Rud Melbourne

9ab 1861 03 26 09 30 0.25 -21.93 0000 O 3 Y Rud Ortelies

9b 1861 03 26 10 00 0.73 -21.32 0000 K 1 N Fin Eleanor

9b 1861 03 26 10 00 -1.07 -21.87 0060 S 1 T Rud Madge Wildfire

9b 1861 03 00 00 00 -0.38 -20.85 0000 K 3 N Imr

9a 1861 11 17 21 00 2.63 6.67 0060 S 1 N Per Soetan Iskander

9ab 1869 07 03 00 00 0.18 -20.85 0000 S 1 N Per Robert Rikmers

9b 1869 07 03 00 00 0.25 -20.87 0000 S 1 N Per Ambroise

9a 1869 09 06 02 30 -1.30 -19.80 0025 K 2 N Rud2 Baroda

9a 1875 06 19 19 00 -3.33 -20.42 0180 K 4-3 T Rud Deutschland

9ab 1878 10 11 05 50 -0.17 -17.40 0050 K 2 N Rud Moltke /2 aftersk.

9b 1878 10 11 07 20 -0.37 -17.67 0000 K 1 N Rud Moltke

9b 1878 10 11 08 20 -0.60 -18.00 0000 K 1 N Rud Moltke

9a 1889 08 13 18 00 -0.80 -20.90 0010 K 2 N Rud2 Carl

9a 1890 10 07 20 00 -4.80 -18.20 0003 K 2 N Rud2 Pallas

9a 1890 11 20 00 00 8.75 -40.47 0120 V 4-3 N Rud2 P.J. Carleton

9a 1891 03 13 19 30 3.78 -42.05 0600 VO 4-3 Y Rud2 Eleanora

Antilles and Caribbean Sea

9a 1724 10 20 16 30 19.35 -64.37 0060 K 4 N Rud Wilhelmina

9a 1785 07 11 03 00 16.99 -61.75 0000 S 2 N Rud2

9a* 1812 03 26 16 07 10.61 -66.94 0011 OK 3 N Mal aftershocks

9a 1842 05 07 17 00 19.78 -72.19 0180 S 3 N Mal

9a* 1843 02 08 10 40 13.30 -58.91 0090 KO 5 N Per Thames / Leeward earthq.

9b 1843 02 08 00 00 16.91 -62.30 0090 OK 5 N Per Juvencelle / ship stops

9a 1843 02 08 10 37 17.01 -61.76 0090 K 4 Y NewH Dee / Motion NE-SW

9a 1843 02 08 11 00 22.50 -62.40 0120 K 3 Y NewH

9a 1843 02 08 00 00 22.50 -61.80 0180 S 1 Y NewH Decatur

9a 1847 10 26 08 30 18.55 -72.34 0000 S 3 N Per

9ab 1850 10 30 04 30 16.50 -54.50 0000 S 1 N Fin Rambler

9b 1850 10 30 04 30 23.50 -58.00 0000 S 1 N Fin Millwood

9a 1852 07 17 07 30 18.5 -81.60 0000 S 1 N Per Tropic

9a 1854 03 17 00 00 19.36 -75.91 0000 S 3 N Per

9a 1858 04 17 20 45 27.47 -79.47 0720 K 5 T Per Pacific / num. aftersk.

9a 1859 04 26 04 25 29.92 -60.17 0070 O 4 T Fin Sheffield

9a 1859 12 15 00 00 17.57 -55.82 0005 O 1 Y Fin Vandalia

9a 1860 04 24 00 00 19.82 -73.45 0000 S 1 N Per

9a 1861 04 27 15 15 18.49 -77.93 0000 S 4 N Per

9a 1864 05 19 00 00 18.20 -72.57 0000 S 2 N Per Georges Prescot

9a 1868 02 26 20 15 18.28 -64.95 0004 S 3 T Per Salier

9a 1868 03 17 00 00 18.48 -66.12 0000 S 2 N Rud2

9a 1869 07 07 17 30 18.52 -65.25 0000 S 2 N Rud Esther & Sophie/2 shocks

9ab 1869 11 07 20 30 25.93 -61.25 0000 O 4 N Rud Gine / num. aftersk

9b 1869 11 07 20 00 26.92 -61.50 0000 V 1 N Rud Merk W. / strange color

9a 1873 10 13 18 00 8.95 -79.52 0004 S 2 N Rud2

9a 1874 12 06 23 50 16.65 -61.18 0000 K 2 N Rud2 Vere