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  • Introduction
  • Earthquake
  • Tsunami
  • Volcano
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  • Introduction
  • Earthquake
  • Tsunami
  • Volcano

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• 

Since 1978, when full scale seismic observation was first started, a total of 2,024 earthquakes have occurred in and around the vicinity of the Korean Peninsula(about 46 times per year) The earthquakes that magnitude is equal to or greater than 3.0, which is generally able to be sensed by ordinary people, have occurred about 10 times per year.

In this period, the activity of earthquakes in Korea was relatively high from '78 to '82, rather quiescent from '83 to '91, and the trend has been active again from '92 to present.

Year	2.0≤M<3.0	3.0≤M<4.0	4.0≤M<5.0	5.0≤M	Total
1978	1	1	2	2	6
1979	5	16	1		22
1980	10	5		1	16
1981	5	9	1		15
1982	2	8	3		13
1983	10	9	1		20
1984	12	7			19
1985	15	9	2		26
1986	3	12			15
1987	7	3	1		11
1988	2	4			6
1989	3	13			16
1990	12	3			15
1991	12	7			19
1992	8	4	3		15
1993	15	6	1		22
1994	13	7	4		24
1995	18	10	1		29
1996	25	12	2		39
1997	13	7	1		21
1998	25	6	1		32
1999	21	15	1		37
2000	21	8			29
2001	34	6	1		41
2002	38	10	1		49
2003	29	6	2	1	38
2004	36	5		1	42
2005	22	14	1		37
2006	43	7			50
2007	40	1	1		42
2008	36	9	1		46
2009	50	9	1		60
2010	37	5			42
2011	38	13	1		52
2012	47	9	0		56
2013	75	15	3		93
2014	41	7	0	1	49
2015	39	5			44
2016	218	30	1	3	252
2017	204	17	1	1	223
2018	110	4	1		115
2019	74	12	2		88
2020	63	5			68
2021	65	3	2	0	70

－ Average number from 1978 to 1998 : 19.1
－ Average number from 1999 to 2020 : 70.6
※ Observation tools : Analog type before 1998, Digital Type after 1999