Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 05-03-2017 and time 22:55:53 (Italy) in region 6 km NE Norcia (PG)

A magnitude ML 1.6 earthquake occured in region: 6 km NE Norcia (PG), on

  • 05-03-2017 21:55:53 (UTC)
  • 05-03-2017 22:55:53 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8250, 13.1600 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 6 4957 4957
Castelsantangelo sul Nera MC 8 281 5238
Preci PG 12 724 5962
Arquata del Tronto AP 13 1178 7140
Visso MC 13 1107 8247
Ussita MC 14 444 8691
Montegallo AP 14 523 9214
Accumoli RI 16 667 9881
Montemonaco AP 16 604 10485
Cascia PG 17 3217 13702
Bolognola MC 20 142 13844
Cerreto di Spoleto PG 20 1075 14919
Montefortino FM 20 1178 16097

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km E of Foligno (57155 inhabitants)
48 Km W of Teramo (54892 inhabitants)
51 Km NE of Terni (111501 inhabitants)
56 Km NW of L'Aquila (69753 inhabitants)
70 Km E of Perugia (166134 inhabitants)
88 Km W of Montesilvano (53738 inhabitants)
93 Km SW of Ancona (100861 inhabitants)
95 Km W of Pescara (121014 inhabitants)
97 Km E of Viterbo (67173 inhabitants)
98 Km NW of Chieti (51815 inhabitants)
98 Km NE of Guidonia Montecelio (88673 inhabitants)
100 Km NE 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
Reviewed
Rev100 		ML 1.6 2017-03-05
21:55:53		 42.8247 13.1602 10 2017-03-05
22:02:42		 Sala Sismica INGV-Roma 42011021
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-03-05 21:55:53 ± 0.04
Latitude 42.8247 ± 0.0027
Longitude 13.1602 ± 0.0025
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 42011021

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 260
Semi-minor axis of confidence ellipse (meter) 118
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 327
Circular confidence region, given by single value of horizontal uncertainty (meter) 260.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 65
Number of associated phases, regardless of their use for origin computation 33
Number of defining phases 29
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.36782
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 18
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 7
Type of magnitude ML
Reference to an origin 42011021
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-03-05 22:02:42
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CPGN.EHZ. 2017-03-05T21:56:29.55 3.0 undecidable manual S -0.38 0
IV.PP3.EHZ. 2017-03-05T21:56:13.66 3.0 undecidable manual S -2.49 0
IV.FIAM.HHZ. 2017-03-05T21:56:12.70 3.0 undecidable manual S -0.36 0
IV.T1211.EHZ. 2017-03-05T21:56:06.92 0.6 undecidable manual S 218 40.8258 50 0.21 46
IV.LNSS.HHZ. 2017-03-05T21:56:02.95 0.6 undecidable manual S 202 26.4513 50 0.07 49
IV.ASSB.HHZ. 2017-03-05T21:56:02.29 3.0 negative manual P 0.42 0
IV.T1299.EHZ. 2017-03-05T21:56:02.12 0.6 undecidable manual S 155 23.3544 114 0.12 48
IV.T1211.EHZ. 2017-03-05T21:56:01.13 0.6 undecidable manual P 218 40.8258 50 0.15 47
IV.T1241.EHZ. 2017-03-05T21:56:01.46 0.3 undecidable manual S 81 22.3554 115 -0.21 72
IV.T1215.EHZ. 2017-03-05T21:56:01.86 0.6 undecidable manual S 264 23.8539 113 -0.3 47
IV.T1217.EHZ. 2017-03-05T21:56:01.39 0.6 undecidable manual S 236 22.4553 114 -0.32 47
IV.T1218.EHZ. 2017-03-05T21:56:00.40 0.6 undecidable manual S 192 17.5713 120 0.2 48
IV.GUMA.HHZ. 2017-03-05T21:55:59.62 1.0 positive manual P 28 29.9478 50 0.31 23
IV.CESI.HHZ. 2017-03-05T21:55:59.24 0.6 undecidable manual P 314 28.8489 50 0.11 48
IV.T1220.EHZ. 2017-03-05T21:55:59.61 0.3 positive manual P 350 32.2455 50 -0.04 73
IV.T1216.EHZ. 2017-03-05T21:55:59.10 0.6 undecidable manual S 303 13.5753 127 0.05 50
IV.RM33.EHZ. 2017-03-05T21:55:59.95 0.6 negative manual P 173 35.3424 50 -0.18 47
IV.MMO1.EHZ. 2017-03-05T21:55:59.66 0.3 undecidable manual S 59 15.873 123 -0.04 75
IV.CSP1.EHZ. 2017-03-05T21:55:59.31 0.3 positive manual P 7 29.8479 50 0.02 73
IV.T1217.EHZ. 2017-03-05T21:55:58.08 0.6 undecidable manual P 236 22.4553 114 -0.02 50
IV.SMA1.EHZ. 2017-03-05T21:55:58.81 0.3 negative manual P 146 25.8519 50 0.14 72
IV.MC2.EHZ. 2017-03-05T21:55:58.24 0.6 undecidable manual S 14 9.879 136 0.16 49
IV.T1299.EHZ. 2017-03-05T21:55:58.17 1.0 undecidable manual P 155 23.3544 114 -0.09 24
IV.T1212.EHZ. 2017-03-05T21:55:58.68 0.6 undecidable manual S 229 12.3765 129 -0.05 50
IV.LNSS.HHZ. 2017-03-05T21:55:58.19 0.6 undecidable manual P 202 26.4513 50 -0.58 43
IV.T1219.EHZ. 2017-03-05T21:55:58.81 1.0 positive manual P 334 28.5492 50 -0.28 23
IV.T1215.EHZ. 2017-03-05T21:55:58.26 0.3 positive manual P 264 23.8539 113 -0.1 73
IV.T1218.EHZ. 2017-03-05T21:55:57.27 0.6 negative manual P 192 17.5713 120 0.05 50
IV.T1241.EHZ. 2017-03-05T21:55:57.98 0.1 positive manual P 81 22.3554 115 -0.09 98
IV.T1216.EHZ. 2017-03-05T21:55:56.71 0.3 positive manual P 303 13.5753 127 0.15 74
IV.MMO1.EHZ. 2017-03-05T21:55:56.97 0.1 positive manual P 59 15.873 123 0.03 100
IV.MC2.EHZ. 2017-03-05T21:55:56.25 1.0 undecidable manual P 14 9.879 136 0.25 24
IV.T1212.EHZ. 2017-03-05T21:55:56.58 0.1 positive manual P 229 12.3765 129 0.2 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:1.5 0.000164 0.48 AML other m 2017-03-05T21:56:03.88
IV.CESI.HHN. ML:1.8 0.0003095 0.14 AML other m 2017-03-05T21:56:03.82
IV.GUMA.HHE. ML:1.8 0.0003005 1.7 AML other m 2017-03-05T21:56:04.94
IV.GUMA.HHN. ML:1.6 0.000201 0.24 AML other m 2017-03-05T21:56:05.40
IV.LNSS.HHE. ML:1.8 0.0003495 0.24 AML other m 2017-03-05T21:56:03.13
IV.LNSS.HHN. ML:1.7 0.0002935 0.56 AML other m 2017-03-05T21:56:03.28
IV.SMA1.EHN. ML:1.2 0.0000991 0.92 AML other m 2017-03-05T21:56:05.05
IV.SMA1.EHE. ML:1.2 0.00007985 1.46 AML other m 2017-03-05T21:56:04.79
IV.T1212.HNE. ML:1.7 0.0006015 0.2 AML other m 2017-03-05T21:55:58.93
IV.T1212.EHE. ML:1.7 0.0006194999999999999 0.2 AML other m 2017-03-05T21:55:58.93
IV.T1212.HNN. ML:1.7 0.0006355 0.2 AML other m 2017-03-05T21:55:58.93
IV.T1212.EHN. ML:1.7 0.000625 0.2 AML other m 2017-03-05T21:55:58.93
IV.T1216.EHN. ML:1.7 0.00048699999999999997 0.32 AML other m 2017-03-05T21:55:59.33
IV.T1216.EHE. ML:1.5 0.00030649999999999997 0.14 AML other m 2017-03-05T21:55:59.44
IV.T1218.EHE. ML:1.5 0.0002655 0.4 AML other m 2017-03-05T21:56:00.33
IV.T1218.HNE. ML:1.6 0.0003045 0.4 AML other m 2017-03-05T21:56:00.53
IV.T1218.EHN. ML:1.6 0.000309 0.16 AML other m 2017-03-05T21:56:00.57
IV.T1218.HNN. ML:1.6 0.00032299999999999994 0.16 AML other m 2017-03-05T21:56:00.57
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