Sequence
|
Date time (
UT
)
|
Local
time zone
[note 1]
[7]
|
Location
|
Elevation
+ height
|
Delivery
|
Yield
[note 2]
|
Fallout
[note 3]
|
References
|
(1)
|
9 October 2006
01:35:27
|
KST
(+9 hrs)
|
Punggye-ri Test Site
, North Korea
41°17′06″N
129°06′30″E
/
41.28505°N 129.1084°E
/
41.28505; 129.1084
(
(1)
)
|
1,340 m (4,400 ft), ?310 m (?1,020 ft)
|
underground
|
0.7?2
kt
|
|
[8]
|
|
(2)
|
25 May 2009
00:54:43
|
KST
(+9 hrs)
|
Punggye-ri Test Site, North Korea
41°17′29″N
129°04′54″E
/
41.29142°N 129.08167°E
/
41.29142; 129.08167
(
(2)
)
|
1,340 m (4,400 ft), ?490 m (?1,610 ft)
|
underground
|
2?5.4
kt
|
|
[11]
[12]
|
|
(3)
|
12 February 2013
02:57:51
|
KST
(+9 hrs)
|
Punggye-ri Test Site, North Korea
41°16′05″N
129°04′51″E
/
41.26809°N 129.08076°E
/
41.26809; 129.08076
(
(3)
)
|
1,340 m (4,400 ft), ?1,000 m (?3,300 ft)
|
underground
|
6?16
kt
|
|
[11]
[13]
|
|
(4)
|
6 January 2016
01:30:01
|
PYT
(+8:30 hrs)
|
Punggye-ri Test Site, North Korea
41°18′32″N
129°02′02″E
/
41.30900°N 129.03399°E
/
41.30900; 129.03399
(
(4)
)
|
1,340 m (4,400 ft), ?1,000 m (?3,300 ft)
|
underground
|
7?16.5
kt
|
|
[15]
[16]
|
|
(5)
|
9 September 2016
00:30:01
|
PYT
(+8:30 hrs)
|
Punggye-ri Test Site, North Korea
41°17′53″N
129°00′54″E
/
41.298°N 129.015°E
/
41.298; 129.015
(
(5)
)
[note 4]
|
1,340 m (4,400 ft), ?1,000 m (?3,300 ft)
|
underground
|
15?25
kt
|
|
[19]
[20]
[21]
|
|
(6)
|
3 September 2017
03:30:01.940
|
PYT
(+8:30 hrs)
|
Punggye-ri Test Site, North Korea
41°20′35″N
129°02′10″E
/
41.343°N 129.036°E
/
41.343; 129.036
(
(2)
)
|
1,340 m (4,400 ft), 0 m (0 ft)
|
underground
|
70?280
kt
|
|
[25]
[26]
[27]
[28]
[29]
[30]
|
- Claimed to be a
hydrogen bomb
(but may only be a
boosted fission weapon
rather than an actual staged Teller?Ulam
thermonuclear weapon
).
[31]
- On 3 September,
South Korea
’s weather agency, the
Korea Meteorological Administration
, estimated that the
nuclear weapons
blast yield of the presumed test was between 50 and 60 kilotons based on a magnitude 5.6 detection.
[32]
- South Korean Government's
initial yield estimate is 100 kt,
[27]
and it detected a 5.7 magnitude earthquake.
[33]
- NORSAR
Seismology Center initial estimate is 120 kt,
[28]
based on a magnitude 5.8 tremor. On 12 Sept 2017, this was revised to an estimate of 250 kt based on a magnitude 6.1 instead.
[4]
- The
German
Federal Institute for Geosciences and Natural Resources
estimate is "a few hundred kt",
[29]
based on a 6.1 detected tremor. The Japan Meteorological Agency also detected a 6.1 magnitude tremor.
[34]
- from
USGS
: "[Magnitude] 6.3 Explosion ... Possible explosion, located near the site where North Korea has detonated nuclear explosions in the past. If this event was an explosion, the USGS National Earthquake Information Center cannot determine its type, whether nuclear or any other possible type." Depth and lat/lon location approximate.
- The
China Earthquake Administration
also detected a 6.3 magnitude
earthquake
.
[35]
- The
University of Science and Technology of China
[36]
estimated the yield at 108.1 ± 48.1 kt.
- The
Geophysical Service of the Russian Academy of Sciences
registered a 6.4 magnitude
earthquake
.
[37]
- The
Lamont?Doherty Earth Observatory
estimated 250 kilotons.
[30]
- Japanese Government
: 160 kt.
[2]
- U.S. Intelligence
/
Air Force Technical Applications Center
: 70 to 280 kilotons.
[25]
Earlier U.S. Intelligence had given an estimate of 140 kt with unspecified margin of error.
[1]
- Indian Space Research Organization
anaysis of satellite
synthetic-aperture radar
data found that explosion was at a depth of 542 ± 30 metres and the yield was 245?271 kt.
[38]
- The
International Seismological Centre
will have authoritative data for this event in due course.
|