Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 21-10-2016 and time 08:30:54 (UTC) in region 2 km S Norcia (PG)

A magnitude ML 2.0 earthquake occured in region: 2 km S Norcia (PG), on

  • 21-10-2016 08:30:54 (UTC)
  • 21-10-2016 10:30:54 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7740, 13.0980 at 13 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 2 4957 4957
Cascia PG 9 3217 8174
Preci PG 13 724 8898
Castelsantangelo sul Nera MC 14 281 9179
Poggiodomo PG 15 117 9296
Accumoli RI 15 667 9963
Cerreto di Spoleto PG 16 1075 11038
Arquata del Tronto AP 16 1178 12216
Visso MC 18 1107 13323
Cittareale RI 18 482 13805
Monteleone di Spoleto PG 18 599 14404
Sellano PG 19 1079 15483
Vallo di Nera PG 19 364 15847
Ussita MC 19 444 16291

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km SE of Foligno (57155 inhabitants)
44 Km NE of Terni (111501 inhabitants)
51 Km W of Teramo (54892 inhabitants)
53 Km NW of L'Aquila (69753 inhabitants)
69 Km SE of Perugia (166134 inhabitants)
90 Km E of Viterbo (67173 inhabitants)
91 Km W of Montesilvano (53738 inhabitants)
91 Km NE of Guidonia Montecelio (88673 inhabitants)
93 Km N of Tivoli (56533 inhabitants)
98 Km W of Pescara (121014 inhabitants)
99 Km W of Chieti (51815 inhabitants)
100 Km SW of Ancona (100861 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 2.0 2016-10-21
08:30:54		 42.7735 13.0977 13 2019-07-19
13:24:01		 Bollettino Sismico Italiano INGV 63885191
Reviewed
Rev100 		ML 2.0 2016-10-21
08:30:54		 42.7717 13.0965 11 2016-10-21
08:37:41		 Sala Sismica INGV-Roma 30417521
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-10-21 08:30:54 ± 0.03
Latitude 42.7735 ± 0.0018
Longitude 13.0977 ± 0.0025
Depth (km) 13 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 63885191

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 200
Semi-minor axis of confidence ellipse (meter) 31
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 238
Circular confidence region, given by single value of horizontal uncertainty (meter) 200.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 43
Number of associated phases, regardless of their use for origin computation 50
Number of defining phases 50
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0.06115
Epicentral distance of station farthest from the epicenter (degree) 0.82828
Number of stations at which the event was observed 32
Number of stations from which data was used for origin computation 32
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 44
Type of magnitude ML
Reference to an origin 63885191
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-12-13 11:23:59

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 21
Type of magnitude ML
Reference to an origin 30417521
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2016-10-21 08:37:41
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CERT.HHZ. 2016-10-21T08:31:10.66 0.6 undecidable manual P 186 91.9413 91 0.18 42
IV.T0110.HHZ. 2016-10-21T08:31:08.92 0.6 undecidable manual P 137 81.9513 91 -0.03 44
IV.T1246.HHE. 2016-10-21T08:31:07.60 0.3 undecidable manual S 123 38.5281 93 -0.04 71
IV.EL6.EHZ. 2016-10-21T08:31:06.03 0.6 undecidable manual P 0 61.6938 92 0.22 44
IV.CAMP.HHZ. 2016-10-21T08:31:06.91 0.6 undecidable manual S 136 36.6411 94 -0.22 46
IV.T1211.EHZ. 2016-10-21T08:31:06.70 0.6 undecidable manual S 217 33.2445 94 0.47 44
IV.RM33.EHZ. 2016-10-21T08:31:05.61 0.3 undecidable manual S 162 30.8469 95 0.01 72
IV.CESI.HHZ. 2016-10-21T08:31:05.48 0.6 undecidable manual S 329 30.0477 95 0.09 48
IV.ATCC.EHZ. 2016-10-21T08:31:05.53 0.3 undecidable manual P 321 58.8966 92 0.15 67
IV.FDMO.HHZ. 2016-10-21T08:31:05.01 0.6 undecidable manual S 358 29.1486 95 -0.14 47
IV.SNTG.HHZ. 2016-10-21T08:31:04.89 0.3 undecidable manual P 347 54.9006 92 0.12 68
IV.FIAM.HHZ. 2016-10-21T08:31:04.60 0.3 undecidable manual P 178 56.0994 92 -0.35 64
IV.GIGS.HHZ. 2016-10-21T08:31:04.07 0.3 undecidable manual P 132 52.6029 92 -0.35 65
IV.MMO1.EHZ. 2016-10-21T08:31:03.48 0.3 undecidable manual S 53 23.2545 98 -0.11 72
IV.CESX.HHZ. 2016-10-21T08:31:03.20 0.3 undecidable manual P 246 45.5211 93 -0.12 68
IV.ASSB.HHZ. 2016-10-21T08:31:03.50 0.3 undecidable manual P 310 46.5201 93 0.02 70
IV.FEMA.HNZ. 2016-10-21T08:31:03.05 0.3 undecidable manual S 349 21.2676 100 -0.01 73
IV.TERO.HHZ. 2016-10-21T08:31:02.93 0.3 undecidable manual P 112 44.5221 93 -0.25 67
IV.MC2.EHZ. 2016-10-21T08:31:02.18 0.3 undecidable manual S 26 16.9719 107 0.23 71
IV.T1246.HHE. 2016-10-21T08:31:02.04 0.3 undecidable manual P 123 38.5281 93 -0.21 68
IV.T1201.HNZ. 2016-10-21T08:31:02.61 0.3 undecidable manual S 136 17.9709 105 0.42 67
IV.GUMA.HHZ. 2016-10-21T08:31:02.40 0.3 undecidable manual P 31 37.4292 94 0.32 67
IV.T1215.HNZ. 2016-10-21T08:31:02.49 0.3 undecidable manual S 280 18.87 103 0.05 74
IV.LNSS.HHZ. 2016-10-21T08:31:02.61 0.6 undecidable manual S 194 19.4694 102 0.02 49
IV.T1211.EHZ. 2016-10-21T08:31:01.37 0.1 undecidable manual P 217 33.2445 94 -0.06 95
IV.ARRO.EHZ. 2016-10-21T08:31:01.60 0.1 undecidable manual P 232 34.6431 94 -0.05 95
IV.T1202.EHZ. 2016-10-21T08:31:01.08 0.3 undecidable manual S 127 12.9759 118 0.13 72
IV.T1216.EHZ. 2016-10-21T08:31:01.09 0.3 undecidable manual S 334 14.4744 114 -0.23 71
IV.T1217.EHZ. 2016-10-21T08:31:01.50 0.3 undecidable manual S 243 15.1737 112 0.01 74
IV.CAMP.HHZ. 2016-10-21T08:31:01.74 0.3 undecidable manual P 136 36.6411 94 -0.22 69
IV.T1244.EHZ. 2016-10-21T08:31:01.88 0.3 undecidable manual S 96 16.3725 108 0.08 73
IV.T1245.HNZ. 2016-10-21T08:31:00.58 0.3 undecidable manual S 39 11.7771 123 -0.1 73
IV.FDMO.HHZ. 2016-10-21T08:31:00.82 0.1 undecidable manual P 358 29.1486 95 0.01 96
IV.RM33.EHZ. 2016-10-21T08:31:00.89 0.3 undecidable manual P 162 30.8469 95 -0.18 70
IV.SMA1.EHZ. 2016-10-21T08:31:00.26 0.6 undecidable manual P 129 25.0527 97 0.08 48
IV.CESI.HHZ. 2016-10-21T08:31:00.97 0.1 undecidable manual P 329 30.0477 95 0.02 96
IV.T1215.HNZ. 2016-10-21T08:30:59.28 0.1 undecidable manual P 280 18.87 103 0.03 98
IV.FEMA.HNZ. 2016-10-21T08:30:59.81 0.3 undecidable manual P 349 21.2676 100 0.2 71
IV.LNSS.HHZ. 2016-10-21T08:30:59.31 0.1 undecidable manual P 194 19.4694 102 -0.03 98
IV.T1244.EHZ. 2016-10-21T08:30:59.01 0.1 undecidable manual P 96 16.3725 108 0.13 96
IV.MMO1.EHZ. 2016-10-21T08:30:59.84 0.1 undecidable manual P 53 23.2545 98 -0.07 96
IV.MC2.EHZ. 2016-10-21T08:30:59.02 0.3 undecidable manual P 26 16.9719 107 0.05 73
IV.T1299.EHZ. 2016-10-21T08:30:59.60 0.3 undecidable manual P 136 21.5673 100 -0.05 73
IV.T1201.HNZ. 2016-10-21T08:30:59.23 0.3 undecidable manual P 136 17.9709 105 0.13 72
IV.NRCA.HNZ. 2016-10-21T08:30:59.32 0.3 undecidable manual S 12 6.7932 144 -0.39 70
IV.T1216.EHZ. 2016-10-21T08:30:58.57 0.3 undecidable manual P 334 14.4744 114 -0.03 74
IV.T1217.EHZ. 2016-10-21T08:30:58.73 0.1 undecidable manual P 243 15.1737 112 0.03 99
IV.T1245.HNZ. 2016-10-21T08:30:58.33 0.1 undecidable manual P 39 11.7771 123 0.1 98
IV.T1202.EHZ. 2016-10-21T08:30:58.50 0.3 undecidable manual P 127 12.9759 118 0.11 73
IV.NRCA.HNZ. 2016-10-21T08:30:57.64 0.1 undecidable manual P 12 6.7932 144 -0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HNE. ML:2.8 0.00852 1 AML other m 2016-10-21T08:30:59.50
IV.NRCA.HHE. ML:2.9 0.009275 1.02 AML other m 2016-10-21T08:30:59.51
IV.NRCA.HHN. ML:2.6 0.00518 0.46 AML other m 2016-10-21T08:31:00.59
IV.NRCA.HNN. ML:2.6 0.004785 0.46 AML other m 2016-10-21T08:31:00.59
IV.T1216.EHE. ML:2.2 0.0014199999999999998 0.66 AML other m 2016-10-21T08:31:01.57
IV.T1216.EHN. ML:2.4 0.0022814999999999997 0.44 AML other m 2016-10-21T08:31:01.48
IV.T1217.EHE. ML:2.0 0.00081925 0.72 AML other m 2016-10-21T08:31:01.54
IV.T1217.EHN. ML:2.2 0.0014199999999999998 0.28 AML other m 2016-10-21T08:31:01.71
IV.T1215.HNN. ML:2.0 0.000697 0.44 AML other m 2016-10-21T08:31:03.01
IV.LNSS.HHE. ML:2.4 0.0016 0.12 AML other m 2016-10-21T08:31:03.35
IV.T1215.HNE. ML:2.0 0.0006835 0.76 AML other m 2016-10-21T08:31:03.41
IV.LNSS.HHN. ML:2.3 0.001575 0.12 AML other m 2016-10-21T08:31:04.03
IV.SMA1.EHE. ML:2.2 0.000876 0.22 AML other m 2016-10-21T08:31:05.16
IV.FDMO.HHE. ML:2.0 0.0004265 0.3 AML other m 2016-10-21T08:31:05.30
IV.CESI.HHN. ML:2.2 0.0006995 0.28 AML other m 2016-10-21T08:31:05.78
IV.FDMO.HHN. ML:2.0 0.0004485 1.18 AML other m 2016-10-21T08:31:05.89
IV.CESI.HHE. ML:1.9 0.00035350000000000003 1.22 AML other m 2016-10-21T08:31:06.75
IV.RM33.EHE. ML:2.1 0.0006305000000000001 1.06 AML other m 2016-10-21T08:31:06.45
IV.RM33.EHN. ML:2.0 0.00044750000000000004 0.4 AML other m 2016-10-21T08:31:06.70
XO.AM05.EHN. ML:1.0 0.000046099999999999996 0.1 AML other m 2016-10-21T08:31:07.01
XO.AM05.HNN. ML:1.6 0.00019 0.86 AML other m 2016-10-21T08:31:07.46
XO.AM05.HNE. ML:1.5 0.000129 0.38 AML other m 2016-10-21T08:31:07.12
XO.AM05.EHE. ML:2.1 0.000605 0.36 AML other m 2016-10-21T08:31:07.13
IV.SMA1.EHN. ML:2.0 0.0005809999999999999 0.24 AML other m 2016-10-21T08:31:07.63
IV.CAMP.HHE. ML:1.6 0.00014815 0.8 AML other m 2016-10-21T08:31:08.40
IV.GUMA.HHN. ML:2.5 0.00106 0.2 AML other m 2016-10-21T08:31:09.45
IV.ARRO.EHN. ML:2.0 0.0003895 0.18 AML other m 2016-10-21T08:31:09.72
IV.CAMP.HHN. ML:1.5 0.00011094999999999999 1.34 AML other m 2016-10-21T08:31:09.16
IV.ARRO.EHE. ML:2.0 0.000395 0.38 AML other m 2016-10-21T08:31:09.73
IV.TERO.HHN. ML:2.0 0.0002695 0.7 AML other m 2016-10-21T08:31:10.45
IV.ASSB.HHN. ML:1.8 0.0001865 0.4 AML other m 2016-10-21T08:31:10.74
IV.TERO.HHE. ML:2.0 0.00026900000000000003 1.42 AML other m 2016-10-21T08:31:11.07
IV.ASSB.HHE. ML:1.9 0.00022349999999999998 0.48 AML other m 2016-10-21T08:31:11.28
IV.GUMA.HHE. ML:2.5 0.0011 0.36 AML other m 2016-10-21T08:31:11.16
IV.GIGS.HHN. ML:1.4 0.00005745 0.48 AML other m 2016-10-21T08:31:11.82
IV.GIGS.HHE. ML:1.2 0.000037749999999999996 0.44 AML other m 2016-10-21T08:31:12.79
IV.SNTG.HHN. ML:1.8 0.0001295 0.68 AML other m 2016-10-21T08:31:13.29
IV.CESX.HHE. ML:1.8 0.0002045 0.32 AML other m 2016-10-21T08:31:13.53
IV.SNTG.HHE. ML:1.8 0.000128 0.26 AML other m 2016-10-21T08:31:13.73
IV.CESX.HHN. ML:1.9 0.00021 1.62 AML other m 2016-10-21T08:31:13.90
IV.FIAM.HHE. ML:1.9 0.0001895 0.56 AML other m 2016-10-21T08:31:14.43
IV.FIAM.HHN. ML:1.9 0.0001635 0.34 AML other m 2016-10-21T08:31:14.52
IV.T0110.HHE. ML:1.9 0.00009315000000000001 0.44 AML other m 2016-10-21T08:31:22.36
IV.T0110.HHN. ML:1.9 0.0001056 0.72 AML other m 2016-10-21T08:31:22.46
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
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