Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 23-03-2017 and time 21:06:34 (Italy) in region 3 km W Norcia (PG)

A magnitude ML 2.0 earthquake occured in region: 3 km W Norcia (PG), on

  • 23-03-2017 20:06:34 (UTC)
  • 23-03-2017 21:06:34 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7970, 13.0600 at 11 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 3 4957 4957
Preci PG 9 724 5681
Cascia PG 9 3217 8898
Cerreto di Spoleto PG 12 1075 9973
Castelsantangelo sul Nera MC 13 281 10254
Poggiodomo PG 14 117 10371
Sellano PG 15 1079 11450
Visso MC 15 1107 12557
Vallo di Nera PG 16 364 12921
Ussita MC 18 444 13365
Monteleone di Spoleto PG 18 599 13964
Accumoli RI 19 667 14631
Sant'Anatolia di Narco PG 20 564 15195
Arquata del Tronto AP 20 1178 16373

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km SE of Foligno (57155 inhabitants)
43 Km NE of Terni (111501 inhabitants)
55 Km W of Teramo (54892 inhabitants)
57 Km NW of L'Aquila (69753 inhabitants)
65 Km SE of Perugia (166134 inhabitants)
89 Km E of Viterbo (67173 inhabitants)
93 Km NE of Guidonia Montecelio (88673 inhabitants)
95 Km W of Montesilvano (53738 inhabitants)
95 Km N of Tivoli (56533 inhabitants)
99 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 2.0 2017-03-23
20:06:34		 42.7968 13.0598 11 2017-03-23
20:11:58		 Sala Sismica INGV-Roma 42836481
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-03-23 20:06:34 ± 0.03
Latitude 42.7968 ± 0.0018
Longitude 13.0598 ± 0.0025
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 42836481

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 249
Semi-minor axis of confidence ellipse (meter) 189
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 265
Circular confidence region, given by single value of horizontal uncertainty (meter) 250.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 103
Number of associated phases, regardless of their use for origin computation 50
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.11
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.26170
Number of stations at which the event was observed 37
Number of stations from which data was used for origin computation 12
Magnitude information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 30
Type of magnitude ML
Reference to an origin 42836481
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-03-23 20:11:58
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.VCEL.EHZ. 2017-03-23T20:06:59.41 3.0 undecidable manual S 0.59 0
IV.ARVD.HHZ. 2017-03-23T20:06:59.08 3.0 undecidable manual S -0.03 0
IV.T0110.HHZ. 2017-03-23T20:06:48.94 3.0 negative manual P -0.3 0
IV.VCEL.EHZ. 2017-03-23T20:06:47.94 3.0 negative manual P 0.07 0
IV.MURB.HHZ. 2017-03-23T20:06:46.26 3.0 undecidable manual P -0.06 0
IV.CING.HHZ. 2017-03-23T20:06:45.70 3.0 positive manual P -0.08 0
IV.FIAM.HHZ. 2017-03-23T20:06:44.54 3.0 negative manual P -0.25 0
IV.SMA1.EHZ. 2017-03-23T20:06:44.26 0.6 undecidable manual S 129 29.0487 50 -0.07 48
IV.ATCC.EHZ. 2017-03-23T20:06:44.01 3.0 positive manual P -0.21 0
IV.EL6.EHZ. 2017-03-23T20:06:44.57 3.0 negative manual P -0.24 0
IV.GIGS.HHZ. 2017-03-23T20:06:43.92 3.0 undecidable manual P -0.42 0
IV.SNTG.HHZ. 2017-03-23T20:06:43.32 3.0 negative manual P -0.29 0
IV.T1256.HHZ. 2017-03-23T20:06:43.73 0.6 undecidable manual S 30 26.8509 50 -0.02 49
IV.T1299.EHZ. 2017-03-23T20:06:43.79 0.6 undecidable manual S 135 25.5522 50 0.39 45
IV.CESI.HHZ. 2017-03-23T20:06:43.48 0.6 undecidable manual S 331 26.3514 50 -0.12 48
IV.CESX.HHZ. 2017-03-23T20:06:42.22 3.0 negative manual P -0.22 0
IV.T1247.HHZ. 2017-03-23T20:06:42.12 3.0 negative manual P -0.15 0
IV.TERO.HHZ. 2017-03-23T20:06:42.54 3.0 positive manual P -0.4 0
IV.T1222.EHZ. 2017-03-23T20:06:42.08 3.0 positive manual P -0.24 0
IV.CAMP.HHZ. 2017-03-23T20:06:41.59 3.0 undecidable manual P -0.09 0
IV.ASSB.HHZ. 2017-03-23T20:06:41.95 3.0 undecidable manual P -0.23 0
IV.MC2.EHZ. 2017-03-23T20:06:41.01 0.6 undecidable manual S 39 16.4724 123 0.2 48
IV.GUMA.HHZ. 2017-03-23T20:06:41.40 3.0 negative manual P 0.33 0
IV.MOMA.HHZ. 2017-03-23T20:06:41.70 3.0 positive manual P -0.1 0
IV.ARRO.EHZ. 2017-03-23T20:06:41.24 3.0 negative manual P 0.45 0
IV.T1217.EHZ. 2017-03-23T20:06:40.14 0.6 undecidable manual S 228 14.0748 127 0.02 50
IV.T1220.EHZ. 2017-03-23T20:06:40.71 3.0 negative manual P -0.07 0
IV.T1241.EHZ. 2017-03-23T20:06:40.12 3.0 negative manual P 0.08 0
IV.T1211.EHZ. 2017-03-23T20:06:40.60 3.0 undecidable manual P -0.11 0
IV.T1218.EHZ. 2017-03-23T20:06:40.20 0.6 undecidable manual S 162 14.7741 126 -0.11 49
IV.RM33.EHZ. 2017-03-23T20:06:40.50 3.0 positive manual P -0.19 0
IV.T1299.EHZ. 2017-03-23T20:06:39.41 0.1 undecidable manual P 135 25.5522 50 -0.02 97
IV.SMA1.EHZ. 2017-03-23T20:06:39.84 0.3 positive manual P 129 29.0487 50 -0.12 71
IV.T1216.EHZ. 2017-03-23T20:06:39.28 0.6 undecidable manual S 342 10.9779 134 -0.01 50
IV.CESI.HHZ. 2017-03-23T20:06:39.48 0.1 negative manual P 331 26.3514 50 -0.07 96
IV.FDMO.HHZ. 2017-03-23T20:06:39.45 3.0 negative manual P 0 0
IV.T1245.HHZ. 2017-03-23T20:06:39.64 0.6 undecidable manual S 57 12.3765 131 -0.01 50
IV.T1219.EHZ. 2017-03-23T20:06:39.76 3.0 negative manual P -0.11 0
IV.T1214.HNZ. 2017-03-23T20:06:39.57 0.6 undecidable manual S 109 12.7761 130 -0.2 48
IV.T1256.HHZ. 2017-03-23T20:06:39.48 0.3 negative manual P 30 26.8509 50 -0.16 71
IV.MC2.EHZ. 2017-03-23T20:06:38.03 0.1 negative manual P 39 16.4724 123 0.1 97
IV.T1214.HNZ. 2017-03-23T20:06:37.40 0.3 negative manual P 109 12.7761 130 0.06 74
IV.T1218.EHZ. 2017-03-23T20:06:37.62 0.1 negative manual P 162 14.7741 126 -0.03 99
IV.T1216.EHZ. 2017-03-23T20:06:37.13 0.1 negative manual P 342 10.9779 134 0.08 99
IV.T1217.EHZ. 2017-03-23T20:06:37.65 0.1 positive manual P 228 14.0748 127 0.11 97
IV.T1212.EHZ. 2017-03-23T20:06:37.93 0.6 undecidable manual S 194 5.1948 154 -0.17 49
IV.T1245.HHZ. 2017-03-23T20:06:37.33 0.1 undecidable manual P 57 12.3765 131 0.06 99
IV.NRCA.HNZ. 2017-03-23T20:06:37.93 0.6 undecidable manual S 47 5.994 150 -0.3 47
IV.T1212.EHZ. 2017-03-23T20:06:36.48 1.0 undecidable manual P 194 5.1948 154 0.11 25
IV.NRCA.HNZ. 2017-03-23T20:06:36.50 0.1 negative manual P 47 5.994 150 0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ARRO.EHN. ML:1.9 0.000301 0.64 AML other m 2017-03-23T20:06:46.98
IV.ARRO.EHE. ML:1.8 0.000249 1.8 AML other m 2017-03-23T20:06:47.92
IV.ARVD.HHN. ML:1.2 0.00002655 0.28 AML other m 2017-03-23T20:07:02.46
IV.ARVD.HHE. ML:1.4 0.0000327 0.44 AML other m 2017-03-23T20:07:02.33
IV.ASSB.HHE. ML:1.5 0.00010205 0.52 AML other m 2017-03-23T20:06:48.40
IV.ASSB.HHN. ML:1.6 0.000122 0.6 AML other m 2017-03-23T20:06:50.66
IV.ATCC.EHE. ML:1.7 0.00011404999999999998 0.2 AML other m 2017-03-23T20:06:52.75
IV.ATCC.EHN. ML:1.6 0.0000862 0.48 AML other m 2017-03-23T20:06:54.59
IV.CAMP.HHN. ML:1.3 0.00006459999999999998 1.4 AML other m 2017-03-23T20:06:49.04
IV.CAMP.HHE. ML:1.3 0.00006435 0.26 AML other m 2017-03-23T20:06:48.20
IV.CESI.HHN. ML:2.1 0.0007019999999999999 0.24 AML other m 2017-03-23T20:06:43.75
IV.CESI.HHE. ML:1.6 0.000237 0.42 AML other m 2017-03-23T20:06:44.32
IV.CESX.HHN. ML:1.9 0.000238 0.38 AML other m 2017-03-23T20:06:50.19
IV.CESX.HHE. ML:1.9 0.0002575 0.4 AML other m 2017-03-23T20:06:50.19
IV.CING.HHN. ML:1.6 0.000071 0.68 AML other m 2017-03-23T20:06:55.72
IV.CING.HHE. ML:1.7 0.0000831 0.28 AML other m 2017-03-23T20:06:56.55
IV.FDMO.HHN. ML:1.9 0.000454 0.22 AML other m 2017-03-23T20:06:43.64
IV.FDMO.HHE. ML:2.0 0.000513 0.24 AML other m 2017-03-23T20:06:43.66
IV.GIGS.HHE. ML:1.1 0.000029400000000000003 0.9 AML other m 2017-03-23T20:06:54.18
IV.GIGS.HHN. ML:1.1 0.000028950000000000002 0.42 AML other m 2017-03-23T20:06:54.37
IV.GUMA.HHE. ML:2.2 0.0005725 0.3 AML other m 2017-03-23T20:06:49.92
IV.GUMA.HHN. ML:2.3 0.000714 0.54 AML other m 2017-03-23T20:06:47.53
IV.GUMA.HNE. ML:2.2 0.0005949999999999999 0.78 AML other m 2017-03-23T20:06:47.55
IV.GUMA.HNN. ML:2.2 0.0006619999999999999 0.58 AML other m 2017-03-23T20:06:48.28
IV.MOMA.HHN. ML:1.7 0.00016999999999999999 1.36 AML other m 2017-03-23T20:06:49.97
IV.MOMA.HHE. ML:1.9 0.00029749999999999997 0.18 AML other m 2017-03-23T20:06:48.27
IV.NRCA.HHE. ML:2.6 0.00591 0.12 AML other m 2017-03-23T20:06:38.53
IV.NRCA.HNE. ML:2.5 0.005494999999999999 0.14 AML other m 2017-03-23T20:06:38.53
IV.NRCA.HNN. ML:2.6 0.00558 0.1 AML other m 2017-03-23T20:06:38.09
IV.NRCA.HHN. ML:2.6 0.00596 0.12 AML other m 2017-03-23T20:06:38.08
IV.RM33.EHN. ML:1.9 0.000296 0.84 AML other m 2017-03-23T20:06:46.57
IV.RM33.EHE. ML:1.8 0.000241 0.16 AML other m 2017-03-23T20:06:47.23
IV.SMA1.EHN. ML:1.8 0.00029049999999999996 0.68 AML other m 2017-03-23T20:06:46.86
IV.SMA1.EHE. ML:1.9 0.00043149999999999997 0.34 AML other m 2017-03-23T20:06:46.39
IV.SNTG.HHN. ML:1.4 0.00006214999999999999 0.62 AML other m 2017-03-23T20:06:51.74
IV.SNTG.HHE. ML:1.4 0.00006275 0.56 AML other m 2017-03-23T20:06:52.84
IV.T1211.HNN. ML:2.2 0.000711 0.24 AML other m 2017-03-23T20:06:45.99
IV.T1211.EHN. ML:2.2 0.0007155 0.24 AML other m 2017-03-23T20:06:45.87
IV.T1211.EHE. ML:2.0 0.00039600000000000003 0.84 AML other m 2017-03-23T20:06:47.17
IV.T1211.HNE. ML:1.9 0.00036550000000000005 0.84 AML other m 2017-03-23T20:06:47.17
IV.T1212.EHN. ML:2.4 0.00426 0.18 AML other m 2017-03-23T20:06:38.09
IV.T1212.HNN. ML:2.4 0.00418 0.18 AML other m 2017-03-23T20:06:38.09
IV.T1212.HNE. ML:2.4 0.00425 0.14 AML other m 2017-03-23T20:06:38.18
IV.T1212.EHE. ML:2.4 0.00429 0.12 AML other m 2017-03-23T20:06:38.18
IV.T1214.EHE. ML:2.1 0.0014750000000000002 1.52 AML other m 2017-03-23T20:06:39.82
IV.T1214.HNE. ML:2.2 0.0015950000000000003 1.54 AML other m 2017-03-23T20:06:39.82
IV.T1214.HNN. ML:2.2 0.0016099999999999999 0.1 AML other m 2017-03-23T20:06:40.00
IV.T1214.EHN. ML:2.2 0.00157 0.08 AML other m 2017-03-23T20:06:40.01
IV.T1216.EHE. ML:2.2 0.0018399999999999998 0.62 AML other m 2017-03-23T20:06:39.53
IV.T1216.EHN. ML:2.2 0.0016799999999999999 0.88 AML other m 2017-03-23T20:06:40.75
IV.T1217.EHN. ML:2.2 0.00151 0.32 AML other m 2017-03-23T20:06:40.40
IV.T1217.HNN. ML:2.2 0.001474 0.32 AML other m 2017-03-23T20:06:40.40
IV.T1217.EHE. ML:1.9 0.0008734999999999999 0.16 AML other m 2017-03-23T20:06:41.25
IV.T1217.HNE. ML:2.0 0.000994 0.16 AML other m 2017-03-23T20:06:41.25
IV.T1218.EHE. ML:2.2 0.00135 0.32 AML other m 2017-03-23T20:06:40.91
IV.T1218.HNE. ML:2.2 0.0013700000000000001 0.32 AML other m 2017-03-23T20:06:40.91
IV.T1218.EHN. ML:2.3 0.0020549999999999995 0.42 AML other m 2017-03-23T20:06:40.71
IV.T1218.HNN. ML:2.3 0.00206 0.14 AML other m 2017-03-23T20:06:40.71
IV.T1219.EHN. ML:1.7 0.0002725 0.24 AML other m 2017-03-23T20:06:44.32
IV.T1219.EHE. ML:1.6 0.000212 0.74 AML other m 2017-03-23T20:06:44.72
IV.T1222.EHN. ML:1.8 0.00018449999999999999 0.32 AML other m 2017-03-23T20:06:50.18
IV.T1222.EHE. ML:1.7 0.00014500000000000003 0.56 AML other m 2017-03-23T20:06:51.78
IV.T1241.EHE. ML:2.0 0.000409 0.38 AML other m 2017-03-23T20:06:45.28
IV.T1241.EHN. ML:1.7 0.000248 1.58 AML other m 2017-03-23T20:06:47.96
IV.T1245.HNN. ML:2.5 0.0037300000000000002 0.4 AML other m 2017-03-23T20:06:40.98
IV.T1245.HHN. ML:2.5 0.0033049999999999998 1.02 AML other m 2017-03-23T20:06:40.78
IV.T1245.HNE. ML:2.5 0.0036349999999999998 0.2 AML other m 2017-03-23T20:06:40.29
IV.T1245.HHE. ML:2.5 0.0037749999999999997 1.76 AML other m 2017-03-23T20:06:39.10
IV.T1247.HHN. ML:1.8 0.00020600000000000002 0.12 AML other m 2017-03-23T20:06:51.90
IV.T1247.HHE. ML:1.9 0.00022499999999999997 0.18 AML other m 2017-03-23T20:06:50.67
IV.T1256.HHE. ML:2.0 0.0005965 0.98 AML other m 2017-03-23T20:06:44.82
IV.T1256.HHN. ML:1.8 0.000335 1.46 AML other m 2017-03-23T20:06:44.85
IV.T1299.EHE. ML:1.4 0.00014450000000000002 0.4 AML other m 2017-03-23T20:06:45.46
IV.T1299.EHN. ML:1.7 0.00027400000000000005 0.2 AML other m 2017-03-23T20:06:44.52
IV.TERO.HHN. ML:1.8 0.000183 0.86 AML other m 2017-03-23T20:06:50.27
IV.TERO.HHE. ML:1.8 0.000169 1.48 AML other m 2017-03-23T20:06:51.84
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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