Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 22-03-2017 and time 01:19:53 (Italy) in region 5 km E Norcia (PG)

A magnitude ML 1.7 earthquake occured in region: 5 km E Norcia (PG), on

  • 22-03-2017 00:19:53 (UTC)
  • 22-03-2017 01:19:53 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7800, 13.1510 at 10 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
Arquata del Tronto AP 12 1178 6135
Accumoli RI 12 667 6802
Castelsantangelo sul Nera MC 13 281 7083
Cascia PG 13 3217 10300
Preci PG 14 724 11024
Montegallo AP 17 523 11547
Visso MC 18 1107 12654
Cittareale RI 18 482 13136
Ussita MC 18 444 13580
Poggiodomo PG 19 117 13697
Cerreto di Spoleto PG 20 1075 14772
Montemonaco AP 20 604 15376

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km E of Foligno (57155 inhabitants)
47 Km W of Teramo (54892 inhabitants)
48 Km NE of Terni (111501 inhabitants)
52 Km NW of L'Aquila (69753 inhabitants)
72 Km SE of Perugia (166134 inhabitants)
87 Km W of Montesilvano (53738 inhabitants)
93 Km NE of Guidonia Montecelio (88673 inhabitants)
94 Km W of Pescara (121014 inhabitants)
95 Km E of Viterbo (67173 inhabitants)
95 Km NE of Tivoli (56533 inhabitants)
96 Km NW of Chieti (51815 inhabitants)
98 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
Reviewed
Rev100 		ML 1.7 2017-03-22
00:19:53		 42.7797 13.151 10 2017-03-22
00:26:38		 Sala Sismica INGV-Roma 42761921
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-03-22 00:19:53 ± 0.05
Latitude 42.7797 ± 0.0027
Longitude 13.1510 ± 0.0049
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 42761921

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 383
Semi-minor axis of confidence ellipse (meter) 266
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 110
Circular confidence region, given by single value of horizontal uncertainty (meter) 380.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 55
Number of associated phases, regardless of their use for origin computation 50
Number of defining phases 49
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.73385
Number of stations at which the event was observed 27
Number of stations from which data was used for origin computation 26
Magnitude information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 11
Type of magnitude ML
Reference to an origin 42761921
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-03-22 00:26:38
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ARVD.HHZ. 2017-03-22T00:20:19.36 0.3 undecidable manual S 348 81.4518 50 1.07 48
IV.CING.HHZ. 2017-03-22T00:20:14.80 0.6 undecidable manual S 3 66.1893 50 0.59 41
IV.EL6.EHZ. 2017-03-22T00:20:13.50 0.3 undecidable manual S 356 61.0944 50 0.65 60
IV.SNTG.HHZ. 2017-03-22T00:20:11.41 0.6 undecidable manual S 342 55.4001 50 0.08 47
IV.MOMA.HHZ. 2017-03-22T00:20:09.53 0.6 undecidable manual S 273 47.3193 50 0.35 45
IV.ARVD.HHZ. 2017-03-22T00:20:08.18 1.0 negative manual P 348 81.4518 50 0.25 22
IV.TERO.HHZ. 2017-03-22T00:20:07.36 0.3 undecidable manual S 115 40.8258 50 -0.08 72
IV.GUMA.HHZ. 2017-03-22T00:20:06.37 0.6 undecidable manual S 25 34.743 50 0.55 44
IV.ARRO.EHZ. 2017-03-22T00:20:06.71 0.6 undecidable manual S 235 38.5281 50 -0.11 48
IV.T1211.EHZ. 2017-03-22T00:20:06.31 0.6 undecidable manual S 222 36.5412 50 0.03 49
IV.T1220.EHZ. 2017-03-22T00:20:06.10 0.6 undecidable manual S 352 37.0296 50 -0.32 46
IV.CSP1.EHZ. 2017-03-22T00:20:05.72 0.6 undecidable manual S 7 34.9428 50 -0.14 48
IV.CING.HHZ. 2017-03-22T00:20:05.49 1.0 undecidable manual P 3 66.1893 50 -0.09 23
IV.RM33.EHZ. 2017-03-22T00:20:04.63 0.6 undecidable manual S 170 30.4473 50 -0.04 49
IV.T1219.EHZ. 2017-03-22T00:20:04.65 0.6 undecidable manual S 339 32.8449 50 -0.66 42
IV.EL6.EHZ. 2017-03-22T00:20:04.34 1.0 positive manual P 356 61.0944 50 -0.45 21
IV.ATCC.EHZ. 2017-03-22T00:20:04.71 0.6 negative manual P 317 61.1943 50 -0.09 46
IV.FDMO.HHZ. 2017-03-22T00:20:03.90 0.3 undecidable manual S 350 28.9488 50 -0.37 69
IV.SNTG.HHZ. 2017-03-22T00:20:03.66 1.0 negative manual P 342 55.4001 50 -0.25 23
IV.T1256.HHZ. 2017-03-22T00:20:03.07 0.6 undecidable manual S 14 25.8519 111 -0.3 47
IV.MOMA.HHZ. 2017-03-22T00:20:03.51 0.1 undecidable manual P 273 47.3193 50 0.84 76
IV.ASSB.HHZ. 2017-03-22T00:20:02.70 0.6 positive manual P 306 49.5171 50 -0.3 45
IV.T1241.EHZ. 2017-03-22T00:20:02.81 0.3 undecidable manual S 69 24.3534 112 -0.06 75
IV.GIGS.HHZ. 2017-03-22T00:20:02.88 3.0 undecidable manual S -1.31 0
IV.T1217.EHZ. 2017-03-22T00:20:01.10 0.6 undecidable manual S 247 19.3695 117 -0.21 49
IV.TERO.HHZ. 2017-03-22T00:20:01.34 0.1 undecidable manual P 115 40.8258 50 -0.32 92
IV.MC2.EHZ. 2017-03-22T00:20:00.24 0.6 undecidable manual S 12 14.9739 123 0.28 48
IV.T1211.EHZ. 2017-03-22T00:20:00.78 1.0 negative manual P 222 36.5412 50 -0.22 24
IV.CESI.HHZ. 2017-03-22T00:20:00.07 1.0 undecidable manual P 321 32.0457 50 -0.24 24
IV.T1220.EHZ. 2017-03-22T00:20:00.80 0.6 negative manual P 352 37.0296 50 -0.28 47
IV.GUMA.HHZ. 2017-03-22T00:20:00.85 0.3 undecidable manual P 25 34.743 50 0.12 72
IV.T1216.EHZ. 2017-03-22T00:20:00.11 0.6 undecidable manual S 319 16.3725 121 -0.26 48
IV.CSP1.EHZ. 2017-03-22T00:20:00.55 0.1 positive manual P 7 34.9428 50 -0.2 95
IV.ARRO.EHZ. 2017-03-22T00:20:00.90 1.0 positive manual P 235 38.5281 50 -0.41 23
IV.T1219.EHZ. 2017-03-22T00:20:00.02 0.6 positive manual P 339 32.8449 50 -0.42 46
IV.T1256.HHZ. 2017-03-22T00:19:59.10 0.3 positive manual P 14 25.8519 111 -0.21 72
IV.FDMO.HHZ. 2017-03-22T00:19:59.48 0.6 positive manual P 350 28.9488 50 -0.35 46
IV.T1218.EHZ. 2017-03-22T00:19:59.45 0.3 undecidable manual S 193 12.4764 128 0.18 74
IV.RM33.EHZ. 2017-03-22T00:19:59.99 0.1 undecidable manual P 170 30.4473 50 -0.08 98
IV.T1245.HNZ. 2017-03-22T00:19:58.26 0.6 undecidable manual S 19 9.0798 137 -0.12 51
IV.T1217.EHZ. 2017-03-22T00:19:58.04 0.3 positive manual P 247 19.3695 117 -0.09 75
IV.T1212.EHZ. 2017-03-22T00:19:58.24 0.6 undecidable manual S 250 9.1797 137 -0.18 50
IV.T1241.EHZ. 2017-03-22T00:19:58.97 0.1 undecidable manual P 69 24.3534 112 -0.05 100
IV.T1216.EHZ. 2017-03-22T00:19:57.43 0.6 positive manual P 319 16.3725 121 -0.15 50
IV.MC2.EHZ. 2017-03-22T00:19:57.49 0.3 undecidable manual P 12 14.9739 123 0.14 75
IV.T1214.EHZ. 2017-03-22T00:19:57.73 0.3 undecidable manual S 115 5.1948 152 0.13 76
IV.T1218.EHZ. 2017-03-22T00:19:57.09 0.1 undecidable manual P 193 12.4764 128 0.14 100
IV.T1212.EHZ. 2017-03-22T00:19:56.51 1.0 undecidable manual P 250 9.1797 137 0.05 26
IV.T1245.HNZ. 2017-03-22T00:19:56.57 0.3 positive manual P 19 9.0798 137 0.14 76
IV.T1214.EHZ. 2017-03-22T00:19:56.27 0.1 undecidable manual P 115 5.1948 152 0.29 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHN. ML:1.4 0.0001225 0.34 AML other m 2017-03-22T00:20:04.18
IV.FDMO.HHE. ML:1.2 0.00008335 0.54 AML other m 2017-03-22T00:20:04.20
IV.GUMA.HHN. ML:1.9 0.0003135 0.42 AML other m 2017-03-22T00:20:06.71
IV.GUMA.HHE. ML:1.9 0.0003345 0.32 AML other m 2017-03-22T00:20:08.32
IV.T1212.HNN. ML:1.7 0.0006995 0.08 AML other m 2017-03-22T00:19:58.39
IV.T1212.EHN. ML:1.7 0.0007264999999999999 0.08 AML other m 2017-03-22T00:19:58.39
IV.T1212.HNE. ML:1.5 0.00045099999999999996 0.54 AML other m 2017-03-22T00:19:58.63
IV.T1212.EHE. ML:1.5 0.00042699999999999997 0.78 AML other m 2017-03-22T00:19:59.63
IV.T1214.HNN. ML:1.9 0.0013650000000000001 0.24 AML other m 2017-03-22T00:19:57.70
IV.T1214.EHN. ML:1.9 0.0012850000000000001 0.24 AML other m 2017-03-22T00:19:57.70
IV.T1214.HNE. ML:1.9 0.0015049999999999998 0.26 AML other m 2017-03-22T00:19:57.83
IV.T1214.EHE. ML:1.9 0.0014199999999999998 0.26 AML other m 2017-03-22T00:19:57.83
IV.T1216.EHE. ML:1.3 0.0001795 1.4 AML other m 2017-03-22T00:20:01.10
IV.T1216.EHN. ML:1.5 0.000273 0.32 AML other m 2017-03-22T00:20:03.12
IV.T1217.EHE. ML:1.6 0.00033299999999999996 0.66 AML other m 2017-03-22T00:20:01.59
IV.T1217.EHN. ML:1.6 0.0002735 0.26 AML other m 2017-03-22T00:20:01.56
IV.T1218.HNE. ML:1.7 0.000609 0.56 AML other m 2017-03-22T00:20:00.65
IV.T1218.EHE. ML:1.6 0.000524 0.54 AML other m 2017-03-22T00:20:00.65
IV.T1218.HNN. ML:1.7 0.0006065 0.52 AML other m 2017-03-22T00:20:00.14
IV.T1218.EHN. ML:1.7 0.000622 0.58 AML other m 2017-03-22T00:20:00.11
IV.T1219.EHE. ML:1.5 0.00013550000000000001 0.22 AML other m 2017-03-22T00:20:05.12
IV.T1219.EHN. ML:1.5 0.00014050000000000003 0.24 AML other m 2017-03-22T00:20:05.18
IV.T1241.EHE. ML:2.0 0.0005925 1.8 AML other m 2017-03-22T00:20:03.96
IV.T1241.EHN. ML:1.8 0.000359 0.56 AML other m 2017-03-22T00:20:02.95
IV.T1241.HNN. ML:1.9 0.00044 0.56 AML other m 2017-03-22T00:20:02.95
IV.T1241.HNE. ML:2.0 0.0005560000000000001 1.82 AML other m 2017-03-22T00:20:03.05
IV.T1245.HNN. ML:2.1 0.0016699999999999998 1.44 AML other m 2017-03-22T00:19:59.78
IV.T1245.HHN. ML:2.1 0.00168 0.26 AML other m 2017-03-22T00:19:58.77
IV.T1245.HHE. ML:1.9 0.00115 1.12 AML other m 2017-03-22T00:19:58.85
IV.T1245.HNE. ML:1.9 0.001127 1.12 AML other m 2017-03-22T00:19:58.85
IV.T1256.HHE. ML:1.6 0.0002445 0.34 AML other m 2017-03-22T00:20:03.45
IV.T1256.HNE. ML:1.6 0.0002575 0.82 AML other m 2017-03-22T00:20:03.69
IV.T1256.HHN. ML:1.8 0.00034750000000000004 0.16 AML other m 2017-03-22T00:20:03.43
IV.T1256.HNN. ML:1.8 0.00036199999999999996 0.16 AML other m 2017-03-22T00:20:03.43
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