Information message about underground nuclear explosion in North Korea, January 6, 2016 |
| Underground nuclear explosion was carried out on January 6, 2016 in North Korea, it was registered by GS RAS with magnitude 5.2. Registered time of explosion - 01:29 GMT (4:29 Moscow time). |
| Parameters of the earthquake
have been determined in the Alert Service (AS) of Information
Processing Center (IPC) of Geophysical Survey of RAS in Obninsk with station data
obtained from digital and analog seismic stations of Russia, countries of CIS
and from abroad. Alert message on this earthquake has been delivered in 10 min after
registration to the Ministry of Emergency of the Russian Federation (EMERCOM). |
| Preliminary processing has been done with data from 39 stations, accurate processing - with data 62 stations. |
| Fig. 1 presents fragments of three component record of explosion registered by digital station Vladivistok (∆ 2.8º). Fig. 2 presents fragments of records registered by digital stations Taejon (∆ 5.1º), Kuldur (∆ 8.2º), Matsushiro (∆ 8.5º), Ulaanbaatar (∆ 17º). |
Figure 1
| 
Figure 2
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|
| IPC GS RAS also has obtained information with parameters of this event from some seismological centers, these data are given in table 1: |
| Table 1 |
| NN |
Time in origin h-min-s (GMT) |
Lat degr. |
Lon degr. |
Depth km |
N s/st |
Ms/ N |
mb/ N |
I0 calc |
GAP |
Center | | 1 |
01-29-58.5 |
41.29 |
129.08 |
0 |
62 |
| 5.2/34 | | 48 | IPC GS RAS (Accurate) | | 2 |
01-29-58.6 |
41.28 |
129.08 |
1 |
39 |
| 5.2/15 | 9-9.5 | | IPC GS RAS (Preliminary) | | 3 |
01-30-00.7 |
41.31 |
129.05 |
0 |
140 |
| 5.1 | | 25 | CSEM | | 4 |
01-30-01.4 |
41.305 |
129.039 |
0 |
103 |
| 5.1 | | 29 | NEIC | |
| IPC GS RAS - Informational Processing Center, Geophysical Survey, Russian Academy of Sciences |
| CSEM - European - Mediterranean seismological center |
| NEIC - National Earthquakes Information Center of US Geological Service |
| Epicenter |
| Fig. 3 presents with red star the epicenter of the explosion, its origin was located in the northeastern part of North Korea (region of nuclear test site Pungeri), 81 km S-W of Chongjin, 314 km S-W of Vladivostok, 378 km N-E of Pyongyang. |
Figure 3 |
|
| Historical records |
| GS RAS registered explosions on October 9, 2006 with magnitude M=4.0, May 25, 2009 with magnitude M=5.0 and February 12, 2013 with magnitude M=5.3 in the same region of North Korea. |
