List of aftershocks of April 2015 Nepal earthquake

Houses destroyed by 2015 Nepal earthquake

The following is a list of aftershocks that occurred after the earthquake in Nepal on 25 April 2015. There was some seismic activity in the Jumla district before the main shock.[1][2] However, they are not foreshocks to the main shock. As of 7 June 2015, over 304 aftershocks have occurred.[3] The large number of aftershocks after the earthquake is considered normal by seismologists.

According to seismologist Roger Musson, the standard pattern for aftershocks is that the biggest aftershock will be one day after, and one magnitude less. Thus, the 6.7 magnitude aftershock on 26 April 2015 following the 7.9 magnitude main shock would fit this pattern. It is highly unlikely that the earthquake was a foreshock preceding an even larger earthquake. Therefore, an earthquake larger than 7.9 in the near future after 25 April 2015 is not expected.[4]

List of aftershocks 5.0 and higher

The list below is incomplete and maybe inaccurate for some aftershocks. Note: The list below shows bigger earthquakes only.

# Date Time District in Nepal Magnitude Fatalities Reference
Main shock 25 April 2015 Gorkha 7.9 9,061 deaths; 23,447 injured [5]
01 25 April 2015 12:22 Sindhupalchowk 5.5 [6]
02 25 April 2015 12:30 Gorkha 6.6 [7]
03 25 April 2015 12:41 Rasuwa 5.7 [8]
04 25 April 2015 12:52 Rasuwa 5.0 [9]
05 25 April 2015 13:32 Tibet 5.1
06 25 April 2015 14:02 Sindhupalchowk 5.2
07 25 April 2015 14:05 Gorkha 5.1
08 25 April 2015 14:14 Gorkha 5.2
09 25 April 2015 14:40 Kavrepalanchowk 5.7
10 25 April 2015 14:48 Rasuwa 5.3
11 25 April 2015 15:02 Tibet 5.9
12 25 April 2015 15:15 Sindhupalchowk 5.5
12 25 April 2015 18:29 Gorkha 5.5
13 25 April 2015 23:27 Tibet 5.4 [10]
14 12 May 2015 12:50 Dolakha 7.3 218 died, 2500+ injured
15 12 May 2015 13:20 Dolakha 6.3
16 25 May 2015 03:23 Gorkha 5.0
17 26 May 2015 22:52 Rasuwa 5.0 [3]
18 29 May 2015 15:44 Dhading 5.2 [3]
19 11 June 2015 21:57 Sindhupalchowk 5.3 [3]
20 13 June 2015 07:06 Dolakha 5.2
21 17 June 2015 06:14 Sindhupalchowk 5.2 [3]
22 17 June 2015 08:00 Sindhupalchowk/Tibet 5.1 [3]
23 20 June 2015 18:08 Rukum 5.4 [3]
24 29 June 2015 05:42 Ramechhap 5.0 [3]
25 2 July 2015 07:41 Sindhupalchowk 5.0 [3]

Notes

1.^ The list uses data from National Seismological Centre of Nepal, not of US Geological survey.The magnitude is Local Magnitude.
2. ^ The earthquake of 12th May 2015 was an aftershock of Gorkha earthquake and not a separate earthquake.
3. ^ All times shown below (including the ones for Tibet) are in Nepal Standard Time and in 24-hour format. Seconds are not shown in all times below.
4. ^ All dates are in the DD Month Year format (Little-endian).
5. ^ Please note that a significant number of aftershocks are missing in this list for the date between 27 April and 12 May.

References

  1. ↑ "M5.0 - 51km SSE of Jumla, Nepal". usgs.gov.
  2. ↑ "M4.3 - 43km SSE of Jumla, Nepal". usgs.gov.
  3. 1 2 3 4 5 6 7 8 9 "Aftershocks of Gorkha Earthquake". National Seismological Centre, Nepal.
  4. ↑ "Nepal Earthquake: How Dangerous Are Aftershocks?". The Telegraph, UK.
  5. ↑ "M7.8 - 34km ESE of Lamjung, Nepal". usgs.gov.
  6. ↑ "M5.1 - 28km SSW of Kodari, Nepal". usgs.gov.
  7. ↑ "M6.6 - 49km E of Lamjung, Nepal". usgs.gov.
  8. ↑ "M5.5 - 25km NNE of Nagarkot, Nepal". usgs.gov.
  9. ↑ "M5.0 - 25km S of Kodari, Nepal". usgs.gov.
  10. ↑ "M5.4 - 22km WNW of Chongdui, China". usgs.gov.
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