Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 18-02-2017 and time 01:48:52 (Italy) in region 3 km W Sellano (PG)

A magnitude ML 1.3 earthquake occured in region: 3 km W Sellano (PG), on

  • 18-02-2017 00:48:52 (UTC)
  • 18-02-2017 01:48:52 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8900, 12.8920 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
Sellano PG 3 1079 1079
Cerreto di Spoleto PG 8 1075 2154
Trevi PG 12 8469 10623
Preci PG 12 724 11347
Campello sul Clitunno PG 12 2442 13789
Vallo di Nera PG 14 364 14153
Monte Cavallo MC 15 145 14298
Visso MC 17 1107 15405
Foligno PG 17 57155 72560
Sant'Anatolia di Narco PG 18 564 73124
Castel Ritaldi PG 19 3278 76402
Montefalco PG 20 5679 82081
Norcia PG 20 4957 87038
Poggiodomo PG 20 117 87155

Municipalities with at least 50000 inhabitants

An earthquake occurred to
17 Km E of Foligno (57155 inhabitants)
42 Km NE of Terni (111501 inhabitants)
48 Km SE of Perugia (166134 inhabitants)
71 Km W of Teramo (54892 inhabitants)
73 Km NW of L'Aquila (69753 inhabitants)
83 Km NE of Viterbo (67173 inhabitants)
96 Km SW of Ancona (100861 inhabitants)
100 Km N of Guidonia Montecelio (88673 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 1.3 2017-02-18
00:48:52		 42.8897 12.8925 11 2019-07-19
13:20:53		 Bollettino Sismico Italiano INGV 62306351
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-02-18 00:48:52 ± 0.03
Latitude 42.8897 ± 0.0018
Longitude 12.8925 ± 0.0025
Depth (km) 11 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 62306351

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 210
Semi-minor axis of confidence ellipse (meter) 160
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 303
Circular confidence region, given by single value of horizontal uncertainty (meter) 210.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 78
Number of associated phases, regardless of their use for origin computation 41
Number of defining phases 39
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) 0.66370
Number of stations at which the event was observed 28
Number of stations from which data was used for origin computation 26
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 18
Type of magnitude ML
Reference to an origin 62306351
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-10-25 15:49:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.APEC.HHZ. 2017-02-18T00:49:19.09 3.0 undecidable manual S 0.1 0
IV.CIMA.HNZ. 2017-02-18T00:49:14.12 3.0 undecidable manual S -3 0
IV.CESX.HHE. 2017-02-18T00:49:05.75 0.6 undecidable manual S 219 39.9267 90 0.09 48
IV.GIGS.HHZ. 2017-02-18T00:49:04.78 0.6 undecidable manual P 131 73.6707 90 -0.54 40
IV.TERO.HHZ. 2017-02-18T00:49:03.94 0.6 undecidable manual P 117 65.0904 90 -0.06 46
IV.T1220.EHN. 2017-02-18T00:49:03.07 0.6 undecidable manual S 33 29.1486 90 0.27 47
IV.MOMA.HNZ. 2017-02-18T00:49:02.78 0.6 undecidable manual S 250 27.8499 90 0.33 46
IV.T1214.EHZ. 2017-02-18T00:49:02.74 0.6 undecidable manual S 119 29.4483 90 -0.14 48
IV.FDMO.HHN. 2017-02-18T00:49:01.10 0.6 undecidable manual S 44 22.6551 90 0.03 50
IV.RM33.EHZ. 2017-02-18T00:49:01.33 0.6 undecidable manual P 148 49.7169 90 -0.3 45
IV.MC2.EHZ. 2017-02-18T00:49:01.50 0.3 undecidable manual S 84 24.2535 90 0.03 75
IV.NRCA.HHZ. 2017-02-18T00:49:00.21 0.3 undecidable manual S 109 19.0698 90 0.11 75
IV.ATCC.EHZ. 2017-02-18T00:49:00.08 0.6 undecidable manual P 328 38.628 90 0.16 47
IV.SMA1.EHZ. 2017-02-18T00:49:00.83 0.1 negative manual P 128 46.1205 90 -0.25 91
IV.T1211.EHZ. 2017-02-18T00:49:00.16 0.3 undecidable manual P 184 39.7269 90 0.07 72
IV.T1212.EHZ. 2017-02-18T00:49:00.17 0.6 undecidable manual S 141 19.6692 90 -0.09 49
IV.T1217.EHZ. 2017-02-18T00:49:00.27 0.3 undecidable manual S 171 19.9689 90 -0.07 74
IV.T1299.EHZ. 2017-02-18T00:49:00.78 0.6 negative manual P 132 42.5241 90 0.25 46
IV.SNTG.HHZ. 2017-02-18T00:49:00.14 0.3 undecidable manual P 5 40.7259 90 -0.1 71
IV.T1241.EHZ. 2017-02-18T00:49:00.41 0.6 undecidable manual P 95 43.9227 90 -0.33 45
IV.T1219.EHZ. 2017-02-18T00:49:00.40 0.3 undecidable manual S 26 20.5683 90 -0.1 74
IV.MMO1.EHZ. 2017-02-18T00:48:59.54 0.3 undecidable manual P 88 35.3424 90 0.13 72
IV.CSP1.EHZ. 2017-02-18T00:48:59.40 0.3 undecidable manual P 48 33.8439 90 0.22 71
IV.CESX.HHE. 2017-02-18T00:48:59.78 0.1 undecidable manual P 219 39.9267 90 -0.34 91
IV.LNSS.HHZ. 2017-02-18T00:48:59.10 0.3 undecidable manual P 159 34.0437 90 -0.11 72
IV.T1220.EHN. 2017-02-18T00:48:58.55 0.1 undecidable manual P 33 29.1486 90 0.08 98
IV.T1218.EHZ. 2017-02-18T00:48:58.72 0.3 undecidable manual P 143 30.3474 90 0.07 73
IV.MOMA.HNZ. 2017-02-18T00:48:58.16 0.1 undecidable manual P 250 27.8499 90 -0.11 98
IV.T1214.EHZ. 2017-02-18T00:48:58.24 0.3 undecidable manual P 119 29.4483 90 -0.28 70
IV.CESI.HHZ. 2017-02-18T00:48:58.38 0.3 undecidable manual S 4 12.7761 101 -0.05 76
IV.T1217.EHZ. 2017-02-18T00:48:57.12 0.3 undecidable manual P 171 19.9689 90 0.07 75
IV.MC2.EHZ. 2017-02-18T00:48:57.97 0.1 undecidable manual P 84 24.2535 90 0.27 95
IV.T1215.EHZ. 2017-02-18T00:48:57.55 0.1 undecidable manual S 191 9.879 120 -0.17 99
IV.T1219.EHZ. 2017-02-18T00:48:57.21 0.3 undecidable manual P 26 20.5683 90 0.07 74
IV.T1216.EHZ. 2017-02-18T00:48:57.94 0.3 undecidable manual S 89 10.2786 118 0.14 75
IV.NRCA.HHZ. 2017-02-18T00:48:57.08 0.1 undecidable manual P 109 19.0698 90 0.17 98
IV.FDMO.HHN. 2017-02-18T00:48:57.31 0.1 undecidable manual P 44 22.6551 90 -0.16 97
IV.T1212.EHZ. 2017-02-18T00:48:57.10 0.3 undecidable manual P 141 19.6692 90 0.1 74
IV.CESI.HHZ. 2017-02-18T00:48:56.11 0.1 undecidable manual P 4 12.7761 101 0.16 98
IV.T1215.EHZ. 2017-02-18T00:48:55.66 0.1 undecidable manual P 191 9.879 120 0.13 100
IV.T1216.EHZ. 2017-02-18T00:48:55.80 0.3 undecidable manual P 89 10.2786 118 0.22 74
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.T1215.HNN. ML:1.2 0.00017855 1 AML other m 2017-02-18T00:48:57.60
IV.T1215.EHN. ML:1.2 0.00019250000000000002 0.06 AML other m 2017-02-18T00:48:57.64
IV.T1215.HNE. ML:1.3 0.000248 0.16 AML other m 2017-02-18T00:48:57.64
IV.T1215.EHE. ML:1.3 0.000261 0.14 AML other m 2017-02-18T00:48:57.65
IV.T1216.EHE. ML:1.0 0.0001285 1.52 AML other m 2017-02-18T00:48:58.17
IV.CESI.HHN. ML:1.2 0.00017199999999999998 0.1 AML other m 2017-02-18T00:48:58.58
IV.T1216.EHN. ML:1.0 0.00011724999999999999 0.92 AML other m 2017-02-18T00:48:58.17
IV.CESI.HHE. ML:1.2 0.0001515 1.76 AML other m 2017-02-18T00:48:58.00
IV.T1299.EHE. ML:1.3 0.0000619 0.38 AML other m 2017-02-18T00:49:03.19
IV.T1299.EHN. ML:1.4 0.0000915 0.1 AML other m 2017-02-18T00:49:03.18
IV.SMA1.EHE. ML:1.4 0.00007965 0.36 AML other m 2017-02-18T00:49:03.46
IV.SMA1.EHN. ML:1.5 0.000089 0.42 AML other m 2017-02-18T00:49:04.28
IV.NRCA.HHE. ML:1.5 0.0002585 0.22 AML other m 2017-02-18T00:49:04.19
IV.NRCA.HHN. ML:1.4 0.000193 0.14 AML other m 2017-02-18T00:49:04.21
IV.RM33.EHN. ML:1.1 0.0000337 1.16 AML other m 2017-02-18T00:49:07.88
IV.RM33.EHE. ML:1.1 0.0000305 0.48 AML other m 2017-02-18T00:49:07.11
IV.TERO.HHN. ML:1.3 0.000038100000000000005 0.72 AML other m 2017-02-18T00:49:08.43
IV.TERO.HHE. ML:1.1 0.0000241 0.3 AML other m 2017-02-18T00:49:08.90
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