Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 20-02-2017 and time 21:42:19 (Italy) in region 3 km SW Fiastra (MC)

A magnitude ML 1.7 earthquake occured in region: 3 km SW Fiastra (MC), on

  • 20-02-2017 20:42:19 (UTC)
  • 20-02-2017 21:42:19 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.0230, 13.1250 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
Fiastra MC 3 559 559
Fiordimonte MC 3 202 761
Acquacanina MC 4 121 882
Pievebovigliana MC 6 866 1748
Pieve Torina MC 7 1458 3206
Ussita MC 9 444 3650
Bolognola MC 9 142 3792
Muccia MC 9 915 4707
Monte Cavallo MC 11 145 4852
Visso MC 11 1107 5959
Camerino MC 13 6974 12933
Castelsantangelo sul Nera MC 14 281 13214
Sarnano MC 15 3264 16478
Cessapalombo MC 15 512 16990
Serravalle di Chienti MC 15 1070 18060
Caldarola MC 15 1823 19883
Camporotondo di Fiastrone MC 17 563 20446
Preci PG 17 724 21170
Serrapetrona MC 18 966 22136
Gualdo MC 18 815 22951
Belforte del Chienti MC 18 1886 24837
San Ginesio MC 18 3498 28335
Amandola FM 19 3629 31964
Sefro MC 20 422 32386
Montefortino FM 20 1178 33564

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km E of Foligno (57155 inhabitants)
61 Km E of Perugia (166134 inhabitants)
62 Km NW of Teramo (54892 inhabitants)
64 Km NE of Terni (111501 inhabitants)
73 Km SW of Ancona (100861 inhabitants)
78 Km N of L'Aquila (69753 inhabitants)
92 Km S of Fano (60888 inhabitants)
100 Km S of Pesaro (94582 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 2017-02-20
20:42:19		 43.0232 13.1248 10 2017-02-20
20:47:47		 Sala Sismica INGV-Roma 41393191
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-02-20 20:42:19 ± 0.06
Latitude 43.0232 ± 0.0036
Longitude 13.1248 ± 0.0062
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 41393191

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 431
Semi-minor axis of confidence ellipse (meter) 429
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 54
Circular confidence region, given by single value of horizontal uncertainty (meter) 430.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 66
Number of associated phases, regardless of their use for origin computation 48
Number of defining phases 26
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.35253
Number of stations at which the event was observed 33
Number of stations from which data was used for origin computation 13
Magnitude information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 31
Type of magnitude ML
Reference to an origin 41393191
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-02-20 20:47:47
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PIEI.HHZ. 2017-02-20T20:42:45.04 3.0 undecidable manual S 0.75 0
IV.T1211.EHZ. 2017-02-20T20:42:40.05 3.0 undecidable manual S 1.01 0
IV.TERO.HHZ. 2017-02-20T20:42:39.32 3.0 undecidable manual S 0.39 0
IV.MURB.HHZ. 2017-02-20T20:42:39.40 3.0 undecidable manual S 0.7 0
IV.T1218.EHZ. 2017-02-20T20:42:33.27 0.6 undecidable manual S 181 39.1275 50 0.1 47
IV.MPAG.EHZ. 2017-02-20T20:42:33.52 3.0 positive manual P 0.12 0
IV.T1217.EHZ. 2017-02-20T20:42:33.24 0.6 undecidable manual S 205 37.9287 50 0.4 45
IV.ATVO.HHZ. 2017-02-20T20:42:32.44 3.0 undecidable manual P -0.49 0
IV.SNTG.HHZ. 2017-02-20T20:42:31.05 0.6 undecidable manual S 330 29.748 50 0.39 45
IV.T1215.EHZ. 2017-02-20T20:42:31.23 0.6 undecidable manual S 220 32.1456 50 -0.08 48
IV.T1241.EHZ. 2017-02-20T20:42:31.21 0.6 undecidable manual S 127 30.9468 50 0.22 47
IV.T1212.EHZ. 2017-02-20T20:42:31.28 0.6 undecidable manual S 192 30.8469 50 0.34 46
IV.MURB.HHZ. 2017-02-20T20:42:30.30 3.0 negative manual P -0.11 0
IV.ARRO.EHZ. 2017-02-20T20:42:30.83 3.0 undecidable manual P 0.42 0
IV.TERO.HHZ. 2017-02-20T20:42:30.37 3.0 undecidable manual P -0.17 0
IV.CAMP.HHZ. 2017-02-20T20:42:30.19 3.0 positive manual P -0.3 0
IV.ATFO.HHZ. 2017-02-20T20:42:30.74 3.0 negative manual P -0.24 0
IV.T1214.EHZ. 2017-02-20T20:42:30.79 0.6 undecidable manual S 167 30.0477 50 0.06 48
IV.RM33.EHZ. 2017-02-20T20:42:30.17 3.0 undecidable manual P -0.13 0
IV.MOMA.HHZ. 2017-02-20T20:42:29.74 3.0 undecidable manual P 0.19 0
IV.ARVD.HHZ. 2017-02-20T20:42:29.98 3.0 negative manual P -0.28 0
IV.SSFR.HHZ. 2017-02-20T20:42:29.86 3.0 positive manual P -0.24 0
IV.NRCA.HHZ. 2017-02-20T20:42:28.65 0.6 undecidable manual S 182 21.0678 115 0.68 42
IV.ATCC.EHZ. 2017-02-20T20:42:28.31 3.0 negative manual P -0.06 0
IV.T1299.EHZ. 2017-02-20T20:42:28.40 3.0 negative manual P 0.2 0
IV.SMA1.EHZ. 2017-02-20T20:42:28.34 3.0 negative manual P -0.15 0
IV.T1217.EHZ. 2017-02-20T20:42:27.40 0.6 positive manual P 205 37.9287 50 0.01 48
IV.CESI.HHZ. 2017-02-20T20:42:27.32 0.6 undecidable manual S 264 17.9709 118 0.3 47
IV.CING.HHZ. 2017-02-20T20:42:27.56 3.0 negative manual P -0.1 0
IV.GUMA.HHZ. 2017-02-20T20:42:27.62 0.6 undecidable manual S 75 17.5713 119 0.71 41
IV.FOSV.EHZ. 2017-02-20T20:42:27.99 3.0 negative manual P -0.21 0
IV.T1218.EHZ. 2017-02-20T20:42:27.37 0.6 negative manual P 181 39.1275 50 -0.21 46
IV.LNSS.HHZ. 2017-02-20T20:42:27.98 3.0 positive manual P -0.64 0
IV.T1212.EHZ. 2017-02-20T20:42:26.18 0.1 undecidable manual P 192 30.8469 50 -0.11 96
IV.EL6.EHZ. 2017-02-20T20:42:26.55 3.0 negative manual P -0.23 0
IV.T1215.EHZ. 2017-02-20T20:42:26.24 0.1 undecidable manual P 220 32.1456 50 -0.26 93
IV.T1214.EHZ. 2017-02-20T20:42:25.67 1.0 undecidable manual P 167 30.0477 50 -0.5 22
IV.SNTG.HHZ. 2017-02-20T20:42:25.88 0.1 negative manual P 330 29.748 50 -0.24 93
IV.MC2.EHZ. 2017-02-20T20:42:25.31 0.6 undecidable manual S 157 13.4754 126 -0.36 47
IV.T1241.EHZ. 2017-02-20T20:42:25.97 0.6 negative manual P 127 30.9468 50 -0.35 46
IV.CSP1.EHZ. 2017-02-20T20:42:24.49 0.6 undecidable manual S 40 9.9789 134 -0.27 48
IV.T1220.EHZ. 2017-02-20T20:42:24.87 0.6 undecidable manual S 343 10.0788 134 0.09 50
IV.NRCA.HHZ. 2017-02-20T20:42:24.23 0.6 undecidable manual P 182 21.0678 115 -0.35 46
IV.CESI.HHZ. 2017-02-20T20:42:24.14 0.1 positive manual P 264 17.9709 118 0.12 98
IV.GUMA.HHZ. 2017-02-20T20:42:24.22 0.1 positive manual P 75 17.5713 119 0.26 95
IV.CSP1.EHZ. 2017-02-20T20:42:22.64 0.1 positive manual P 40 9.9789 134 -0.08 100
IV.T1220.EHZ. 2017-02-20T20:42:22.65 0.1 negative manual P 343 10.0788 134 -0.09 100
IV.MC2.EHZ. 2017-02-20T20:42:22.98 0.1 negative manual P 157 13.4754 126 -0.27 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ARRO.EHN. ML:1.4 0.00005035 0.42 AML other m 2017-02-20T20:42:41.44
IV.ARRO.EHE. ML:1.4 0.00005685 1.76 AML other m 2017-02-20T20:42:41.91
IV.ARVD.HHN. ML:1.4 0.0000636 0.14 AML other m 2017-02-20T20:42:39.81
IV.ARVD.HHE. ML:1.5 0.00007295 1.68 AML other m 2017-02-20T20:42:40.88
IV.ATCC.EHN. ML:2.1 0.0003685 0.34 AML other m 2017-02-20T20:42:35.38
IV.ATCC.EHE. ML:2.0 0.000331 0.28 AML other m 2017-02-20T20:42:36.66
IV.ATFO.HHE. ML:1.4 0.0000564 0.74 AML other m 2017-02-20T20:42:41.42
IV.ATFO.HHN. ML:1.4 0.00004765 0.38 AML other m 2017-02-20T20:42:46.43
IV.ATVO.HHN. ML:1.4 0.00003805 1.56 AML other m 2017-02-20T20:42:44.15
IV.ATVO.HHE. ML:1.4 0.00003845 1.32 AML other m 2017-02-20T20:42:48.05
IV.CAMP.HHN. ML:1.7 0.0001046 1.78 AML other m 2017-02-20T20:42:39.97
IV.CAMP.HHE. ML:1.6 0.0000775 0.96 AML other m 2017-02-20T20:42:39.50
IV.CESI.HHE. ML:2.1 0.000998 0.48 AML other m 2017-02-20T20:42:27.24
IV.CESI.HHN. ML:2.2 0.0012549999999999998 0.88 AML other m 2017-02-20T20:42:27.54
IV.CING.HHE. ML:1.8 0.000193 0.92 AML other m 2017-02-20T20:42:34.20
IV.CING.HHN. ML:1.7 0.000179 0.22 AML other m 2017-02-20T20:42:34.74
IV.CSP1.EHE. ML:2.1 0.0015750000000000002 0.5 AML other m 2017-02-20T20:42:25.48
IV.CSP1.EHN. ML:2.2 0.00229 1.42 AML other m 2017-02-20T20:42:25.84
IV.EL6.EHE. ML:2.0 0.000371 1.08 AML other m 2017-02-20T20:42:33.37
IV.EL6.EHN. ML:1.9 0.00033299999999999996 0.28 AML other m 2017-02-20T20:42:33.66
IV.FOSV.EHE. ML:1.6 0.0001215 0.38 AML other m 2017-02-20T20:42:34.80
IV.FOSV.EHN. ML:1.6 0.0001315 0.22 AML other m 2017-02-20T20:42:37.73
IV.GUMA.HHE. ML:2.2 0.0012799999999999999 0.42 AML other m 2017-02-20T20:42:30.16
IV.GUMA.HNE. ML:2.2 0.001285 0.4 AML other m 2017-02-20T20:42:30.17
IV.GUMA.HHN. ML:2.0 0.0009490000000000001 0.42 AML other m 2017-02-20T20:42:28.73
IV.GUMA.HNN. ML:2.2 0.0012 0.74 AML other m 2017-02-20T20:42:29.33
IV.LNSS.HHN. ML:1.8 0.0002 0.48 AML other m 2017-02-20T20:42:40.21
IV.LNSS.HHE. ML:1.8 0.0001605 0.62 AML other m 2017-02-20T20:42:40.91
IV.MOMA.HHN. ML:1.5 0.0000782 1.32 AML other m 2017-02-20T20:42:39.87
IV.MOMA.HHE. ML:1.6 0.00010055 0.16 AML other m 2017-02-20T20:42:38.79
IV.MPAG.EHN. ML:1.4 0.0000376 0.46 AML other m 2017-02-20T20:42:47.41
IV.MPAG.EHE. ML:1.4 0.00004045 0.54 AML other m 2017-02-20T20:42:46.31
IV.MURB.HHE. ML:2.2 0.00032250000000000003 1.7 AML other m 2017-02-20T20:42:43.91
IV.MURB.HHN. ML:2.1 0.0002595 1.56 AML other m 2017-02-20T20:42:42.11
IV.NRCA.HNN. ML:2.1 0.000987 1.24 AML other m 2017-02-20T20:42:29.94
IV.NRCA.HHE. ML:2.1 0.000912 0.16 AML other m 2017-02-20T20:42:30.59
IV.NRCA.HNE. ML:2.1 0.0009525000000000001 1.08 AML other m 2017-02-20T20:42:30.60
IV.NRCA.HHN. ML:2.1 0.0009405 0.38 AML other m 2017-02-20T20:42:29.66
IV.PIEI.HHN. ML:1.3 0.00003115 0.92 AML other m 2017-02-20T20:42:48.23
IV.PIEI.HHE. ML:1.5 0.000048899999999999996 1.28 AML other m 2017-02-20T20:42:47.69
IV.RM33.EHN. ML:1.5 0.00007725 0.42 AML other m 2017-02-20T20:42:40.42
IV.RM33.EHE. ML:1.4 0.000060950000000000004 0.64 AML other m 2017-02-20T20:42:40.12
IV.SMA1.EHE. ML:1.7 0.000157 0.36 AML other m 2017-02-20T20:42:41.53
IV.SMA1.EHN. ML:1.7 0.00014050000000000003 0.86 AML other m 2017-02-20T20:42:35.73
IV.SNTG.HHE. ML:1.4 0.0001265 1.4 AML other m 2017-02-20T20:42:33.29
IV.SNTG.HHN. ML:1.3 0.00010114999999999999 1.26 AML other m 2017-02-20T20:42:37.72
IV.SSFR.HHE. ML:2.0 0.0002445 0.22 AML other m 2017-02-20T20:42:40.86
IV.SSFR.HHN. ML:1.9 0.00019 0.88 AML other m 2017-02-20T20:42:40.43
IV.T1211.EHE. ML:1.4 0.0000572 0.16 AML other m 2017-02-20T20:42:43.45
IV.T1211.EHN. ML:1.8 0.00013450000000000002 0.26 AML other m 2017-02-20T20:42:41.36
IV.T1214.HNN. ML:1.9 0.0003605 1.04 AML other m 2017-02-20T20:42:31.02
IV.T1214.EHN. ML:1.8 0.0003375 0.46 AML other m 2017-02-20T20:42:31.90
IV.T1214.EHE. ML:2.0 0.0004290000000000001 0.16 AML other m 2017-02-20T20:42:31.44
IV.T1214.HNE. ML:2.0 0.000446 0.18 AML other m 2017-02-20T20:42:31.52
IV.T1215.EHN. ML:1.3 0.0000918 0.26 AML other m 2017-02-20T20:42:31.30
IV.T1215.EHE. ML:1.3 0.00008845 0.32 AML other m 2017-02-20T20:42:32.09
IV.T1217.EHN. ML:1.6 0.00013455 0.42 AML other m 2017-02-20T20:42:34.66
IV.T1217.EHE. ML:1.5 0.00012154999999999999 0.64 AML other m 2017-02-20T20:42:37.71
IV.T1218.EHN. ML:1.7 0.000183 0.2 AML other m 2017-02-20T20:42:36.43
IV.T1218.EHE. ML:1.6 0.0001315 0.16 AML other m 2017-02-20T20:42:34.50
IV.T1218.HNE. ML:1.6 0.000155 0.74 AML other m 2017-02-20T20:42:36.76
IV.T1218.HNN. ML:1.8 0.0002465 0.86 AML other m 2017-02-20T20:42:36.43
IV.T1220.EHE. ML:2.6 0.005575 1.1 AML other m 2017-02-20T20:42:26.95
IV.T1220.EHN. ML:2.6 0.005165 0.56 AML other m 2017-02-20T20:42:26.96
IV.T1241.EHN. ML:1.5 0.0001615 1.02 AML other m 2017-02-20T20:42:34.60
IV.T1241.EHE. ML:1.6 0.00020500000000000002 0.38 AML other m 2017-02-20T20:42:32.58
IV.T1299.EHE. ML:1.5 0.00009685 0.3 AML other m 2017-02-20T20:42:38.14
IV.T1299.EHN. ML:1.6 0.00011650000000000001 0.98 AML other m 2017-02-20T20:42:36.07
IV.TERO.HHE. ML:1.6 0.00008935 0.54 AML other m 2017-02-20T20:42:39.77
IV.TERO.HHN. ML:1.7 0.0001095 1.04 AML other m 2017-02-20T20:42:42.62
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