Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 24-12-2016 and time 08:54:33 (UTC) in region 5 km N Norcia (PG)

A magnitude ML 2.1 earthquake occured in region: 5 km N Norcia (PG), on

  • 24-12-2016 08:54:33 (UTC)
  • 24-12-2016 09:54:33 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8380, 13.0810 at 11 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Norcia PG 5 4957 4957
Preci PG 6 724 5681
Castelsantangelo sul Nera MC 9 281 5962
Visso MC 10 1107 7069
Ussita MC 13 444 7513
Cerreto di Spoleto PG 14 1075 8588
Sellano PG 14 1079 9667
Cascia PG 14 3217 12884
Poggiodomo PG 18 117 13001
Monte Cavallo MC 19 145 13146
Arquata del Tronto AP 19 1178 14324
Vallo di Nera PG 19 364 14688

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km E of Foligno (57155 inhabitants)
47 Km NE of Terni (111501 inhabitants)
55 Km W of Teramo (54892 inhabitants)
60 Km NW of L'Aquila (69753 inhabitants)
64 Km E of Perugia (166134 inhabitants)
92 Km NE of Viterbo (67173 inhabitants)
94 Km SW of Ancona (100861 inhabitants)
95 Km W of Montesilvano (53738 inhabitants)
98 Km NE of Guidonia Montecelio (88673 inhabitants)
100 Km N of Tivoli (56533 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000 		ML 2.1 2016-12-24
08:54:33		 42.8383 13.0807 11 2019-07-19
13:24:08		 Bollettino Sismico Italiano INGV 64454211
Reviewed
Rev100 		ML 2.1 2016-12-24
08:54:34		 42.8418 13.0798 11 2016-12-24
08:59:58		 Sala Sismica INGV-Roma 37555911
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-12-24 08:54:33 ± 0.02
Latitude 42.8383 ± 0.0009
Longitude 13.0807 ± 0.0025
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 64454211

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 172
Semi-minor axis of confidence ellipse (meter) 124
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 240
Circular confidence region, given by single value of horizontal uncertainty (meter) 170.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 31
Number of associated phases, regardless of their use for origin computation 82
Number of defining phases 79
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.72845
Number of stations at which the event was observed 53
Number of stations from which data was used for origin computation 50
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 24
Type of magnitude ML
Reference to an origin 37555911
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2016-12-24 08:59:58

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 48
Type of magnitude ML
Reference to an origin 64454211
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-01-02 15:47:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.VAGA.HHZ. 2016-12-24T08:55:04.85 3.0 undecidable manual Pg 2.42 0
IV.SFI.EHZ. 2016-12-24T08:55:02.82 3.0 undecidable manual P 4.14 0
IV.TERO.HHZ. 2016-12-24T08:54:49.32 0.3 undecidable manual S 119 48.9177 50 -0.19 68
IV.VCEL.EHZ. 2016-12-24T08:54:47.85 0.6 undecidable manual P 128 79.1652 50 0.26 42
IV.ATVA.EHE. 2016-12-24T08:54:47.76 0.1 undecidable manual P 307 80.8635 50 -0.09 86
IV.T1246.HHZ. 2016-12-24T08:54:47.98 0.3 undecidable manual S 130 43.9227 50 -0.2 68
IV.ARVD.HHZ. 2016-12-24T08:54:46.87 0.6 undecidable manual P 351 74.0703 50 0.07 44
IV.ATTE.HHN. 2016-12-24T08:54:46.23 1.0 undecidable manual P 304 71.1732 50 -0.13 22
IV.ATFO.HHZ. 2016-12-24T08:54:46.87 0.6 undecidable manual P 325 71.6727 50 0.44 41
IV.GUMA.HHZ. 2016-12-24T08:54:45.42 0.3 undecidable manual S 40 32.3454 50 0.32 68
IV.FIAM.HHZ. 2016-12-24T08:54:45.34 0.3 undecidable manual P 177 63.2922 50 0.19 66
IV.MURB.HHE. 2016-12-24T08:54:45.65 0.1 undecidable manual P 316 65.1903 50 0.21 87
IV.T1243.HHZ. 2016-12-24T08:54:45.15 0.3 undecidable manual S 118 33.8439 50 -0.34 67
IV.GIGS.HHZ. 2016-12-24T08:54:44.23 0.6 undecidable manual P 137 58.5969 50 -0.19 44
IV.T1220.HNZ. 2016-12-24T08:54:44.92 0.3 undecidable manual S 1 30.1476 50 0.41 67
IV.CSP1.EHZ. 2016-12-24T08:54:44.41 0.3 undecidable manual S 20 29.8479 50 -0.02 72
IV.SMA1.EHZ. 2016-12-24T08:54:44.75 0.6 undecidable manual S 138 31.0467 50 0.01 48
IV.CING.HHZ. 2016-12-24T08:54:44.56 0.6 undecidable manual P 9 60.2952 50 -0.12 45
IV.LNSS.HHZ. 2016-12-24T08:54:43.36 0.3 undecidable manual S 187 26.3514 50 -0.12 71
IV.T1241.EHZ. 2016-12-24T08:54:43.87 0.6 undecidable manual S 86 28.5492 50 -0.22 46
IV.ATCC.EHZ. 2016-12-24T08:54:43.60 0.1 undecidable manual P 317 52.503 50 0.12 91
IV.T1201.HNZ. 2016-12-24T08:54:43.34 0.3 undecidable manual S 145 24.3534 50 0.37 68
IV.OFFI.HHZ. 2016-12-24T08:54:43.86 0.6 undecidable manual P 77 50.3163 50 0.71 39
IV.T1204.EHZ. 2016-12-24T08:54:43.15 0.3 undecidable manual S 133 26.3514 50 -0.34 68
IV.EL6.EHZ. 2016-12-24T08:54:43.83 0.1 undecidable manual P 2 54.501 50 0.04 92
XO.AM05.EHZ. 2016-12-24T08:54:43.48 0.3 undecidable manual S 55 26.9508 50 -0.17 70
IV.T1256.HHZ. 2016-12-24T08:54:42.12 0.3 undecidable manual S 32 22.0668 50 -0.23 70
IV.SNTG.HHZ. 2016-12-24T08:54:42.64 0.1 undecidable manual P 346 47.619 50 -0.08 92
IV.FDMO.HHZ. 2016-12-24T08:54:42.05 0.3 undecidable manual S 1 21.9669 50 -0.28 70
IV.CESI.HHZ. 2016-12-24T08:54:42.38 0.3 undecidable manual S 322 23.3544 50 -0.32 69
IV.TERO.HHZ. 2016-12-24T08:54:42.67 0.3 undecidable manual P 119 48.9177 50 -0.25 67
IV.CESX.HHZ. 2016-12-24T08:54:42.72 0.1 undecidable manual P 238 47.619 50 -0.01 94
IV.T1219.EHZ. 2016-12-24T08:54:42.76 0.6 undecidable manual S 346 24.9528 50 -0.35 45
IV.T1211.EHZ. 2016-12-24T08:54:41.31 0.1 undecidable manual P 209 38.5281 50 -0.02 95
IV.ASSB.HHZ. 2016-12-24T08:54:41.83 3.0 negative manual P -0.06 0
IV.MDAR.HNZ. 2016-12-24T08:54:41.47 0.1 undecidable manual P 7 39.627 50 -0.03 95
IV.T1202.EHZ. 2016-12-24T08:54:41.47 0.3 undecidable manual S 142 18.9699 119 -0.03 74
IV.MOMA.HHZ. 2016-12-24T08:54:41.94 0.1 undecidable manual P 265 41.7249 50 0.12 93
IV.T1217.HNZ. 2016-12-24T08:54:41.23 0.3 undecidable manual S 221 18.5703 120 -0.14 72
IV.ARRO.EHZ. 2016-12-24T08:54:41.32 0.1 undecidable manual P 222 38.5281 50 -0.01 95
IV.T1221.HNZ. 2016-12-24T08:54:41.40 0.3 undecidable manual S 277 19.1697 119 -0.15 72
IV.T1246.HHZ. 2016-12-24T08:54:41.98 0.3 undecidable manual P 130 43.9227 50 -0.18 68
IV.T1218.HNZ. 2016-12-24T08:54:41.31 0.6 undecidable manual S 171 18.87 120 -0.15 48
IV.CAMP.HHZ. 2016-12-24T08:54:41.88 0.1 undecidable manual P 141 42.9237 50 -0.12 92
IV.RM33.EHZ. 2016-12-24T08:54:41.24 0.1 undecidable manual P 163 38.1285 50 -0.02 95
IV.T1244.HNZ. 2016-12-24T08:54:41.85 0.3 undecidable manual S 117 19.869 118 0.09 72
IV.T1243.HHZ. 2016-12-24T08:54:40.46 0.1 undecidable manual P 118 33.8439 50 -0.14 93
IV.GUMA.HHZ. 2016-12-24T08:54:40.69 0.1 positive manual P 40 32.3454 50 0.31 90
IV.T1215.EHZ. 2016-12-24T08:54:40.96 0.3 undecidable manual S 257 17.7711 121 -0.16 72
IV.SMA1.EHZ. 2016-12-24T08:54:40.30 0.1 undecidable manual P 138 31.0467 50 0.13 94
IV.T1204.EHZ. 2016-12-24T08:54:39.55 0.1 undecidable manual P 133 26.3514 50 0.1 95
IV.T1219.EHZ. 2016-12-24T08:54:39.16 0.6 undecidable manual P 346 24.9528 50 -0.07 48
IV.T1214.HNZ. 2016-12-24T08:54:39.75 0.3 undecidable manual S 130 13.5753 128 -0.19 72
XO.AM05.EHZ. 2016-12-24T08:54:39.61 0.1 undecidable manual P 55 26.9508 50 0.07 96
IV.LNSS.HHZ. 2016-12-24T08:54:39.45 0.1 positive manual P 187 26.3514 50 0 97
IV.T1299.HNZ. 2016-12-24T08:54:39.87 0.1 undecidable manual P 144 27.9498 50 0.17 94
IV.T1213.HNZ. 2016-12-24T08:54:39.48 0.3 undecidable manual S 164 13.0758 129 -0.32 70
IV.MC2.EHZ. 2016-12-24T08:54:39.64 0.3 undecidable manual S 47 11.9769 132 0.13 73
IV.T1241.EHZ. 2016-12-24T08:54:39.77 0.1 undecidable manual P 86 28.5492 50 -0.02 97
IV.T1220.HNZ. 2016-12-24T08:54:39.96 0.1 undecidable manual P 1 30.1476 50 -0.08 95
IV.T1212.HNZ. 2016-12-24T08:54:39.00 0.3 undecidable manual S 197 10.0788 137 -0.03 75
IV.CSP1.EHZ. 2016-12-24T08:54:39.95 0.1 undecidable manual P 20 29.8479 50 -0.04 96
IV.T1201.HNZ. 2016-12-24T08:54:39.47 0.1 undecidable manual P 145 24.3534 50 0.32 91
IV.CESI.HHZ. 2016-12-24T08:54:39.04 0.1 undecidable manual P 322 23.3544 50 0.05 97
IV.FEMA.HNZ. 2016-12-24T08:54:39.80 0.3 undecidable manual S 350 13.9749 128 -0.24 71
IV.T1218.HNZ. 2016-12-24T08:54:38.32 0.3 undecidable manual P 171 18.87 120 0.04 73
IV.T1215.EHZ. 2016-12-24T08:54:38.16 0.1 undecidable manual P 257 17.7711 121 0.08 97
IV.T1245.HNZ. 2016-12-24T08:54:38.53 0.3 undecidable manual S 77 8.9799 140 -0.25 72
IV.T1244.HNZ. 2016-12-24T08:54:38.59 0.1 undecidable manual P 117 19.869 118 0.14 96
IV.T1256.HHZ. 2016-12-24T08:54:38.60 0.1 undecidable manual P 32 22.0668 50 -0.19 94
IV.T1202.EHZ. 2016-12-24T08:54:38.42 0.1 undecidable manual P 142 18.9699 119 0.12 96
IV.FDMO.HHZ. 2016-12-24T08:54:38.77 0.1 positive manual P 1 21.9669 50 -0.01 98
IV.T1216.EHZ. 2016-12-24T08:54:38.23 0.3 undecidable manual S 319 7.6812 144 -0.28 71
IV.T1217.HNZ. 2016-12-24T08:54:38.31 0.1 undecidable manual P 221 18.5703 120 0.09 97
IV.T1221.HNZ. 2016-12-24T08:54:38.42 0.1 undecidable manual P 277 19.1697 119 0.09 97
IV.T1212.HNZ. 2016-12-24T08:54:37.09 0.1 undecidable manual P 197 10.0788 137 0.22 96
IV.FEMA.HNZ. 2016-12-24T08:54:37.51 0.1 undecidable manual P 350 13.9749 128 0.05 98
IV.T1214.HNZ. 2016-12-24T08:54:37.49 0.1 undecidable manual P 130 13.5753 128 0.09 98
IV.T1213.HNZ. 2016-12-24T08:54:37.33 0.1 undecidable manual P 164 13.0758 129 0.01 99
IV.MC2.EHZ. 2016-12-24T08:54:37.35 0.1 negative manual P 47 11.9769 132 0.2 96
IV.T1216.EHZ. 2016-12-24T08:54:36.60 0.1 undecidable manual P 319 7.6812 144 0.03 100
IV.T1245.HNZ. 2016-12-24T08:54:36.86 0.1 negative manual P 77 8.9799 140 0.13 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.T1218.EHE. ML:2.4 0.0020099999999999996 0.12 AML other m 2016-12-24T08:54:41.66
IV.T1218.HNE. ML:2.4 0.002125 0.12 AML other m 2016-12-24T08:54:41.66
IV.T1218.HNN. ML:2.6 0.003395 0.26 AML other m 2016-12-24T08:54:41.95
IV.T1218.EHN. ML:2.6 0.0034000000000000002 0.26 AML other m 2016-12-24T08:54:41.95
IV.FDMO.HHE. ML:2.2 0.0011775 0.2 AML other m 2016-12-24T08:54:42.30
IV.FDMO.HHN. ML:2.3 0.0013250000000000002 1.14 AML other m 2016-12-24T08:54:42.28
IV.T1256.HHE. ML:2.5 0.0020350000000000004 1.02 AML other m 2016-12-24T08:54:42.41
IV.CESI.HHN. ML:2.0 0.0007109999999999999 1.74 AML other m 2016-12-24T08:54:42.09
IV.T1256.HHN. ML:2.2 0.0010609999999999999 0.3 AML other m 2016-12-24T08:54:43.31
IV.T1219.HNN. ML:2.0 0.0006495 0.82 AML other m 2016-12-24T08:54:44.04
IV.T1219.EHN. ML:2.0 0.0006075 0.84 AML other m 2016-12-24T08:54:44.04
IV.LNSS.HHN. ML:2.5 0.0017050000000000001 1.34 AML other m 2016-12-24T08:54:44.82
IV.LNSS.HHE. ML:2.4 0.001325 0.5 AML other m 2016-12-24T08:54:44.25
IV.T1241.HNN. ML:2.3 0.001145 0.38 AML other m 2016-12-24T08:54:44.45
IV.T1241.EHN. ML:2.3 0.0010215 0.36 AML other m 2016-12-24T08:54:44.45
IV.T1219.EHE. ML:1.9 0.0004795 0.22 AML other m 2016-12-24T08:54:44.40
IV.T1241.HNE. ML:2.5 0.00149 0.3 AML other m 2016-12-24T08:54:44.40
IV.T1241.EHE. ML:2.5 0.0016099999999999999 0.3 AML other m 2016-12-24T08:54:44.40
IV.T1219.HNE. ML:1.9 0.0004995 0.3 AML other m 2016-12-24T08:54:45.59
IV.SMA1.EHN. ML:2.0 0.0005275 0.28 AML other m 2016-12-24T08:54:46.19
IV.CESI.HHE. ML:1.8 0.000444 0.56 AML other m 2016-12-24T08:54:46.41
IV.ASSB.HHE. ML:1.9 0.000266 0.26 AML other m 2016-12-24T08:54:47.80
IV.SMA1.EHE. ML:2.0 0.000491 0.8 AML other m 2016-12-24T08:54:47.51
IV.ARRO.EHE. ML:2.1 0.000417 0.22 AML other m 2016-12-24T08:54:48.63
IV.ASSB.HHN. ML:2.0 0.0003085 0.28 AML other m 2016-12-24T08:54:48.86
IV.MOMA.HNE. ML:2.1 0.0004145 0.76 AML other m 2016-12-24T08:54:48.39
IV.MOMA.HNN. ML:2.2 0.000459 0.68 AML other m 2016-12-24T08:54:49.12
IV.MOMA.HHN. ML:2.0 0.00034199999999999996 0.54 AML other m 2016-12-24T08:54:49.50
IV.ARRO.EHN. ML:1.9 0.000291 0.2 AML other m 2016-12-24T08:54:50.20
IV.CESX.HHN. ML:2.0 0.000308 0.26 AML other m 2016-12-24T08:54:50.55
IV.MOMA.HHE. ML:2.1 0.000398 0.54 AML other m 2016-12-24T08:54:50.61
IV.CESX.HHE. ML:2.0 0.00026700000000000004 0.56 AML other m 2016-12-24T08:54:50.53
IV.SNTG.HHE. ML:1.6 0.00010025000000000001 1.26 AML other m 2016-12-24T08:54:52.94
IV.EL6.EHN. ML:2.3 0.0005055000000000001 0.28 AML other m 2016-12-24T08:54:52.79
IV.EL6.EHE. ML:2.1 0.0003035 0.18 AML other m 2016-12-24T08:54:53.32
IV.ATCC.EHN. ML:2.0 0.000219 1.4 AML other m 2016-12-24T08:54:54.96
IV.CING.HHN. ML:1.7 0.0001094 0.9 AML other m 2016-12-24T08:54:54.29
IV.OFFI.HHN. ML:2.2 0.0004395 0.46 AML other m 2016-12-24T08:54:55.51
IV.CING.HHE. ML:1.8 0.00011549999999999999 1.2 AML other m 2016-12-24T08:54:55.33
IV.SNTG.HHN. ML:1.7 0.00012665000000000002 0.3 AML other m 2016-12-24T08:54:57.06
IV.FIAM.HHE. ML:1.7 0.00010314999999999999 0.54 AML other m 2016-12-24T08:54:57.26
IV.OFFI.HHE. ML:2.2 0.000425 0.42 AML other m 2016-12-24T08:54:57.56
IV.ATCC.EHE. ML:2.0 0.00023999999999999998 0.68 AML other m 2016-12-24T08:54:58.52
IV.ARVD.HHN. ML:1.6 0.0000571 1.06 AML other m 2016-12-24T08:55:01.06
IV.ARVD.HHE. ML:1.7 0.0000692 1.42 AML other m 2016-12-24T08:55:01.86
IV.FIAM.HHN. ML:1.7 0.00009045 0.82 AML other m 2016-12-24T08:55:02.99
IV.VCEL.EHN. ML:2.2 0.000194 1.34 AML other m 2016-12-24T08:55:08.84
IV.VCEL.EHE. ML:2.0 0.000135 0.6 AML other m 2016-12-24T08:55:13.56
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
Waveforms Seismic signals in miniseed + resp format Download