Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 08-04-2017 and time 23:04:19 (Italy) in region 4 km NW Visso (MC)

A magnitude ML 1.4 earthquake occured in region: 4 km NW Visso (MC), on

  • 08-04-2017 21:04:19 (UTC)
  • 08-04-2017 23:04:19 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9600, 13.0500 at 9 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
Visso MC 5 1107 1107
Monte Cavallo MC 6 145 1252
Ussita MC 8 444 1696
Preci PG 9 724 2420
Fiordimonte MC 9 202 2622
Pieve Torina MC 10 1458 4080
Castelsantangelo sul Nera MC 11 281 4361
Pievebovigliana MC 12 866 5227
Fiastra MC 12 559 5786
Sellano PG 13 1079 6865
Acquacanina MC 13 121 6986
Muccia MC 14 915 7901
Serravalle di Chienti MC 15 1070 8971
Bolognola MC 15 142 9113
Norcia PG 19 4957 14070
Cerreto di Spoleto PG 19 1075 15145
Camerino MC 20 6974 22119

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km E of Foligno (57155 inhabitants)
55 Km NE of Terni (111501 inhabitants)
56 Km E of Perugia (166134 inhabitants)
63 Km NW of Teramo (54892 inhabitants)
73 Km NW of L'Aquila (69753 inhabitants)
83 Km SW of Ancona (100861 inhabitants)
98 Km NE of Viterbo (67173 inhabitants)
98 Km S of Fano (60888 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 1.4 2017-04-08
21:04:19		 42.9597 13.0495 9 2017-04-08
21:24:00		 Sala Sismica INGV-Roma 43579071
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-04-08 21:04:19 ± 0.05
Latitude 42.9597 ± 0.0018
Longitude 13.0495 ± 0.0037
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 43579071

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 269
Semi-minor axis of confidence ellipse (meter) 96
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 241
Circular confidence region, given by single value of horizontal uncertainty (meter) 270.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 87
Number of associated phases, regardless of their use for origin computation 32
Number of defining phases 32
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.52790
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 21
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 43579071
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-04-08 21:24:00
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ARVD.HHZ. 2017-04-08T21:04:39.70 0.6 undecidable manual S 0.26 1.14
IV.CESX.HHZ. 2017-04-08T21:04:37.60 0.6 undecidable manual S 0.17 1.14
IV.T1211.EHZ. 2017-04-08T21:04:29.33 1.0 undecidable manual P 199 49.9167 50 0.62 20
IV.OFFI.HHZ. 2017-04-08T21:04:29.15 0.6 undecidable manual P 93 51.7038 50 0.16 45
IV.TERO.HHZ. 2017-04-08T21:04:29.82 1.0 positive manual P 129 58.5969 50 -0.22 22
IV.T1212.EHZ. 2017-04-08T21:04:28.03 0.1 undecidable manual S 181 23.0547 111 0.17 95
IV.T1214.EHZ. 2017-04-08T21:04:28.51 0.6 undecidable manual S 150 25.6521 109 -0.21 47
IV.T1299.EHZ. 2017-04-08T21:04:27.29 0.1 undecidable manual P 152 40.7259 50 -0.01 95
IV.MMO1.EHZ. 2017-04-08T21:04:27.83 0.1 undecidable manual S 106 23.4543 110 -0.17 95
IV.EL6.EHZ. 2017-04-08T21:04:27.29 1.0 negative manual P 6 41.2254 50 -0.08 23
IV.T1241.EHZ. 2017-04-08T21:04:26.05 1.0 undecidable manual P 110 33.0447 50 -0.06 24
IV.NRCA.HHZ. 2017-04-08T21:04:25.33 0.1 undecidable manual S 159 14.9739 120 0.02 99
IV.CESI.HHZ. 2017-04-08T21:04:25.03 0.1 undecidable manual S 293 12.7761 124 0.36 92
IV.ASSB.HHZ. 2017-04-08T21:04:25.90 0.1 positive manual P 286 33.0447 50 -0.2 92
IV.T1256.HHZ. 2017-04-08T21:04:25.72 0.1 undecidable manual S 70 15.2736 120 0.33 93
IV.T1245.HHZ. 2017-04-08T21:04:25.70 0.1 undecidable manual S 135 16.0728 119 0.06 98
IV.T1218.EHZ. 2017-04-08T21:04:25.80 1.0 positive manual P 171 32.5452 50 -0.24 23
IV.T1214.EHZ. 2017-04-08T21:04:24.56 0.1 undecidable manual P 150 25.6521 109 -0.17 94
IV.T1212.EHZ. 2017-04-08T21:04:24.24 0.1 undecidable manual P 181 23.0547 111 0 98
IV.T1219.EHZ. 2017-04-08T21:04:24.17 0.1 undecidable manual S 341 11.2776 128 -0.07 98
IV.MMO1.EHZ. 2017-04-08T21:04:24.28 1.0 positive manual P 106 23.4543 110 -0.04 24
IV.MC2.EHZ. 2017-04-08T21:04:24.71 0.1 undecidable manual S 115 12.5763 125 0.11 97
IV.T1216.EHZ. 2017-04-08T21:04:23.08 0.1 undecidable manual S 198 8.0808 137 -0.34 94
IV.T1245.HHZ. 2017-04-08T21:04:23.00 0.1 undecidable manual P 135 16.0728 119 0.04 98
IV.FDMO.HHZ. 2017-04-08T21:04:23.30 0.1 undecidable manual S 20 9.0798 134 -0.37 93
IV.T1219.EHZ. 2017-04-08T21:04:22.13 0.1 undecidable manual P 341 11.2776 128 -0.02 99
IV.T1256.HHZ. 2017-04-08T21:04:22.92 0.1 undecidable manual P 70 15.2736 120 0.11 97
IV.MC2.EHZ. 2017-04-08T21:04:22.54 0.1 undecidable manual P 115 12.5763 125 0.18 96
IV.NRCA.HHZ. 2017-04-08T21:04:22.78 0.1 undecidable manual P 159 14.9739 120 0.01 99
IV.CESI.HHZ. 2017-04-08T21:04:22.57 0.1 undecidable manual P 293 12.7761 124 0.17 96
IV.T1216.EHZ. 2017-04-08T21:04:21.66 0.1 undecidable manual P 198 8.0808 137 -0.02 100
IV.FDMO.HHZ. 2017-04-08T21:04:21.72 0.1 undecidable manual P 20 9.0798 134 -0.1 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ASSB.HHE. ML:1.4 0.00010350000000000001 0.32 AML other m 2017-04-08T21:04:31.50
IV.ASSB.HHN. ML:1.4 0.0001135 0.18 AML other m 2017-04-08T21:04:31.26
IV.CESI.HHE. ML:1.2 0.0001865 0.64 AML other m 2017-04-08T21:04:25.50
IV.CESI.HHN. ML:1.6 0.000475 0.42 AML other m 2017-04-08T21:04:25.41
IV.CESX.HHE. ML:1.0 0.000027 1.48 AML other m 2017-04-08T21:04:38.91
IV.CESX.HHN. ML:1.0 0.000027300000000000003 0.64 AML other m 2017-04-08T21:04:39.16
IV.FDMO.HHN. ML:1.6 0.0005705 0.2 AML other m 2017-04-08T21:04:23.61
IV.FDMO.HHE. ML:1.5 0.000506 0.18 AML other m 2017-04-08T21:04:23.68
IV.NRCA.HHE. ML:1.6 0.0003605 0.12 AML other m 2017-04-08T21:04:25.91
IV.NRCA.HHN. ML:1.7 0.00047799999999999996 0.16 AML other m 2017-04-08T21:04:26.14
IV.T1211.HNN. ML:1.7 0.0001357 0.5 AML other m 2017-04-08T21:04:40.67
IV.T1211.HNE. ML:1.6 0.00009415 0.76 AML other m 2017-04-08T21:04:49.45
IV.T1214.EHN. ML:1.1 0.0000727 0.66 AML other m 2017-04-08T21:04:31.05
IV.T1214.EHE. ML:1.1 0.00006945 0.28 AML other m 2017-04-08T21:04:31.49
IV.T1216.EHN. ML:1.9 0.001365 0.26 AML other m 2017-04-08T21:04:23.44
IV.T1216.EHE. ML:1.8 0.001085 0.86 AML other m 2017-04-08T21:04:23.94
IV.T1218.EHN. ML:1.2 0.0000774 0.44 AML other m 2017-04-08T21:04:31.08
IV.T1218.EHE. ML:1.1 0.0000557 0.78 AML other m 2017-04-08T21:04:31.37
IV.T1219.HNN. ML:1.5 0.00041049999999999995 0.16 AML other m 2017-04-08T21:04:24.72
IV.T1219.EHN. ML:1.4 0.0003265 0.16 AML other m 2017-04-08T21:04:24.72
IV.T1219.EHE. ML:1.5 0.0004035 0.26 AML other m 2017-04-08T21:04:24.65
IV.T1219.HNE. ML:1.5 0.000364 0.24 AML other m 2017-04-08T21:04:24.52
IV.T1241.EHE. ML:1.1 0.000048049999999999996 1.48 AML other m 2017-04-08T21:04:32.25
IV.T1241.EHN. ML:1.0 0.0000427 1.34 AML other m 2017-04-08T21:04:33.30
IV.T1245.HHN. ML:1.6 0.00033400000000000004 0.2 AML other m 2017-04-08T21:04:26.54
IV.T1245.HNN. ML:1.7 0.0004465 0.72 AML other m 2017-04-08T21:04:27.55
IV.T1245.HNE. ML:1.4 0.00021349999999999999 0.42 AML other m 2017-04-08T21:04:28.27
IV.T1245.HHE. ML:1.3 0.0001905 1 AML other m 2017-04-08T21:04:29.66
IV.T1256.HHE. ML:1.2 0.0001465 1.04 AML other m 2017-04-08T21:04:26.46
IV.T1256.HHN. ML:1.1 0.000123 1.1 AML other m 2017-04-08T21:04:25.89
IV.TERO.HHN. ML:1.1 0.0000242 0.58 AML other m 2017-04-08T21:04:41.12
IV.TERO.HHE. ML:1.0 0.00002035 0.64 AML other m 2017-04-08T21:04:38.61
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