General Characters of the Disturbance. 27
at Naples influenced by disturbance. (H. J. Johnston
Lavis's ' Notices on the Earthquakes of Ischia of 1881 and
1883,' Naples, 1883; and Brit. Assoc. Rep., Southport, 1883.)
1883. Sept. 23rd. Casamicciola again; two strong
shocks ; one house wrecked. (' Nature,' Sept. 27th.)
1883. Oct. 10th, morning. Bournemouth ; slight shock.
(' Nature,' Oct. 25th and Nov. 1st.)
1884. Jan. 3rd. Sadakli, near Brussa (Asia Minor);
some destruction caused. According to Prof. Forel, this
was an "earthquake period" in Switzerland, Italy and
Portugal, as numerous shocks occurred in this and the
preceding month. ('Nature,' Jan. 17th.)
1884. Jan. 23rd. Many shocks during previous fort-
night in the province of Castambul; minarets of mosques
thrown down. (' Nature,' Jan. 31st.)
1884. Feb. 18th, (about) 1h. 10m. a.m. Essex; Mersea
Island and neighbourhood. A slight shock accompanied by
loud noise. (See present Report).
1884. March 25th, 9 p.m. Hungary ; many houses
damaged at Djakovar. ( ' Nature,' April 10th.)
1884. March 29th, about sunset. Castambul: some old
buildings thrown down. ('Nature,' April 3rd.)
Many other earthquakes of great destructiveness occurred
during this period, both in the New and Old Worlds, and
without here entering into details it may be pointed out
that the year 1883 witnessed one of the most stupendous
volcanic outbursts of modern times. I refer to the great
eruption at the Island of Krakatoa in the Sunda Straits,
which commenced in May, reached its maximum on August
26th, and lasted to October 10th, producing great changes
in the physical geography of the island, overwhelming large
numbers of villages, and causing the loss of many thousand
lives.11 Since the Essex earthquake, the following shocks
have been recorded in England and the Channel Islands:—
1884. June 24th, about 5 a.m. Colchester; a slight
shock felt by all the inmates of Mr. Henry Laver's house.
(Information given by Mr. Laver.)
1884. Aug. 26th, morning. Jersey; violent shaking;
crockery rattled ; rumbling sound. No damage.
11 A Committee of the Royal Society is at present engaged in drawing
up a report on this catastrophe.