Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 03-04-2017 and time 08:22:48 (Italy) in region 5 km SW Arquata del Tronto (AP)

A magnitude ML 1.8 earthquake occured in region: 5 km SW Arquata del Tronto (AP), on

  • 03-04-2017 06:22:48 (UTC)
  • 03-04-2017 08:22:48 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7420, 13.2610 at 15 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
Arquata del Tronto AP 5 1178 1178
Accumoli RI 5 667 1845
Acquasanta Terme AP 13 2916 4761
Montegallo AP 13 523 5284
Amatrice RI 13 2657 7941
Norcia PG 15 4957 12898
Cittareale RI 16 482 13380
Montemonaco AP 18 604 13984
Castelsantangelo sul Nera MC 19 281 14265
Valle Castellana TE 19 977 15242

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km W of Teramo (54892 inhabitants)
45 Km N of L'Aquila (69753 inhabitants)
51 Km E of Foligno (57155 inhabitants)
54 Km E of Terni (111501 inhabitants)
77 Km W of Montesilvano (53738 inhabitants)
82 Km SE of Perugia (166134 inhabitants)
84 Km W of Pescara (121014 inhabitants)
86 Km NW of Chieti (51815 inhabitants)
93 Km NE of Guidonia Montecelio (88673 inhabitants)
95 Km NE of Tivoli (56533 inhabitants)
100 Km S 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 1.8 2017-04-03
06:22:48		 42.7425 13.2613 15 2017-04-03
06:28:11		 Sala Sismica INGV-Roma 43316131
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-04-03 06:22:48 ± 0.05
Latitude 42.7425 ± 0.0018
Longitude 13.2613 ± 0.0037
Depth (km) 15 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 43316131

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 259
Semi-minor axis of confidence ellipse (meter) 61
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 71
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) 71
Number of associated phases, regardless of their use for origin computation 38
Number of defining phases 38
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) 0.04227
Epicentral distance of station farthest from the epicenter (degree) 0.59805
Number of stations at which the event was observed 24
Number of stations from which data was used for origin computation 24
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 21
Type of magnitude ML
Reference to an origin 43316131
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-04-03 06:28:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.T1211.EHZ. 2017-04-03T06:23:01.29 0.1 undecidable manual S 235 40.5261 98 -0.05 93
IV.FDMO.HHZ. 2017-04-03T06:23:00.11 0.1 undecidable manual S 337 35.5422 99 0.08 94
IV.EL6.EHZ. 2017-04-03T06:22:59.84 0.6 negative manual P 349 66.378 94 0.17 44
IV.VCEL.EHZ. 2017-04-03T06:22:59.07 0.3 undecidable manual P 129 61.0944 94 0.21 66
IV.T1217.EHZ. 2017-04-03T06:22:58.24 0.1 undecidable manual S 263 27.0507 104 0.42 90
IV.T1256.HHZ. 2017-04-03T06:22:58.56 0.1 undecidable manual S 354 29.4483 102 0.14 94
IV.ASSB.HHZ. 2017-04-03T06:22:58.48 1.0 negative manual P 304 59.1963 95 -0.09 22
IV.T1216.EHZ. 2017-04-03T06:22:57.47 0.1 undecidable manual S 310 25.6521 105 0.02 97
IV.CAMP.HHZ. 2017-04-03T06:22:57.32 0.1 undecidable manual S 152 25.8519 105 -0.19 94
IV.RM33.EHZ. 2017-04-03T06:22:57.70 0.1 undecidable manual S 188 26.1516 105 0.12 95
IV.T1220.EHZ. 2017-04-03T06:22:56.08 1.0 negative manual P 341 43.1235 97 -0.03 23
IV.OFFI.HHZ. 2017-04-03T06:22:56.53 0.6 positive manual P 58 40.626 98 0.81 37
IV.ARRO.EHZ. 2017-04-03T06:22:56.25 0.1 undecidable manual P 246 44.3223 97 -0.04 93
IV.T1241.EHZ. 2017-04-03T06:22:55.47 0.1 undecidable manual S 48 18.7701 115 -0.24 95
IV.T1219.EHZ. 2017-04-03T06:22:55.62 0.6 negative manual P 329 40.5261 98 -0.09 46
IV.T1211.EHZ. 2017-04-03T06:22:55.56 1.0 positive manual P 235 40.5261 98 -0.14 23
IV.CESI.HHZ. 2017-04-03T06:22:55.83 0.3 undecidable manual P 315 41.1255 97 0.04 71
IV.GIGS.HHZ. 2017-04-03T06:22:55.60 0.6 negative manual P 141 40.9257 97 -0.17 46
IV.T1222.EHZ. 2017-04-03T06:22:55.76 0.3 positive manual P 206 42.0246 97 -0.18 68
IV.T1212.EHZ. 2017-04-03T06:22:55.41 0.1 undecidable manual S 273 17.6712 117 -0.04 97
IV.FDMO.HHZ. 2017-04-03T06:22:54.88 0.6 undecidable manual P 337 35.5422 99 -0.07 47
IV.SMA1.EHZ. 2017-04-03T06:22:54.39 0.1 undecidable manual S 154 13.7751 126 -0.18 97
IV.T1218.HNZ. 2017-04-03T06:22:54.65 0.1 undecidable manual S 236 14.3745 125 -0.04 98
IV.NRCA.HNZ. 2017-04-03T06:22:54.66 0.1 undecidable manual S 310 15.6732 121 -0.32 93
IV.T1299.EHZ. 2017-04-03T06:22:54.34 0.1 undecidable manual S 172 12.0768 131 0.12 96
IV.CAMP.HHZ. 2017-04-03T06:22:53.38 0.1 negative manual P 152 25.8519 105 -0.11 95
IV.RM33.EHZ. 2017-04-03T06:22:53.58 0.1 negative manual P 188 26.1516 105 0.04 97
IV.T1217.EHZ. 2017-04-03T06:22:53.62 0.3 positive manual P 263 27.0507 104 -0.05 72
IV.T1214.EHZ. 2017-04-03T06:22:53.05 0.1 undecidable manual S 294 4.6953 159 -0.01 100
IV.T1216.EHZ. 2017-04-03T06:22:53.34 0.1 positive manual P 310 25.6521 105 -0.12 95
IV.T1256.HHZ. 2017-04-03T06:22:53.97 0.6 positive manual P 354 29.4483 102 -0.05 48
IV.NRCA.HNZ. 2017-04-03T06:22:52.00 0.1 positive manual P 310 15.6732 121 -0.04 98
IV.T1212.EHZ. 2017-04-03T06:22:52.28 1.0 negative manual P 273 17.6712 117 -0.03 24
IV.T1241.EHZ. 2017-04-03T06:22:52.37 0.6 undecidable manual P 48 18.7701 115 -0.08 49
IV.T1214.EHZ. 2017-04-03T06:22:51.05 0.1 negative manual P 294 4.6953 159 0.12 98
IV.T1299.EHZ. 2017-04-03T06:22:51.75 0.1 undecidable manual P 172 12.0768 131 0.16 96
IV.SMA1.EHZ. 2017-04-03T06:22:51.84 0.1 negative manual P 154 13.7751 126 0.04 98
IV.T1218.HNZ. 2017-04-03T06:22:51.93 0.1 positive manual P 236 14.3745 125 0.06 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ARRO.EHN. ML:1.4 0.00006455 0.66 AML other m 2017-04-03T06:23:03.33
IV.ARRO.EHE. ML:1.4 0.00006359999999999999 0.16 AML other m 2017-04-03T06:23:04.87
IV.ASSB.HHN. ML:1.7 0.00009470000000000001 0.54 AML other m 2017-04-03T06:23:08.87
IV.ASSB.HHE. ML:1.7 0.00009585 0.48 AML other m 2017-04-03T06:23:08.53
IV.CAMP.HHN. ML:1.5 0.000178 0.4 AML other m 2017-04-03T06:22:57.64
IV.CAMP.HHE. ML:1.4 0.0001205 0.46 AML other m 2017-04-03T06:22:57.44
IV.CESI.HHN. ML:1.7 0.00017549999999999998 1.6 AML other m 2017-04-03T06:23:03.92
IV.CESI.HHE. ML:1.6 0.000114 0.16 AML other m 2017-04-03T06:23:03.70
IV.FDMO.HHN. ML:1.3 0.0000824 0.18 AML other m 2017-04-03T06:23:02.37
IV.FDMO.HHE. ML:1.4 0.0000872 1.06 AML other m 2017-04-03T06:23:03.27
IV.GIGS.HHE. ML:1.2 0.000047350000000000006 0.56 AML other m 2017-04-03T06:23:01.63
IV.GIGS.HHN. ML:1.2 0.000045849999999999996 0.96 AML other m 2017-04-03T06:23:02.52
IV.NRCA.HHE. ML:2.4 0.001845 1.2 AML other m 2017-04-03T06:22:54.19
IV.NRCA.HNE. ML:2.3 0.00174 1.2 AML other m 2017-04-03T06:22:54.19
IV.NRCA.HHN. ML:2.4 0.00212 0.08 AML other m 2017-04-03T06:22:54.88
IV.NRCA.HNN. ML:2.4 0.00195 0.06 AML other m 2017-04-03T06:22:54.88
IV.OFFI.HHN. ML:2.1 0.00041099999999999996 0.54 AML other m 2017-04-03T06:23:04.34
IV.OFFI.HHE. ML:2.1 0.0004215 0.72 AML other m 2017-04-03T06:23:04.19
IV.RM33.HNN. ML:1.9 0.000423 1.08 AML other m 2017-04-03T06:22:58.37
IV.RM33.EHN. ML:1.8 0.000364 1.06 AML other m 2017-04-03T06:22:58.38
IV.RM33.EHE. ML:1.9 0.00043 0.44 AML other m 2017-04-03T06:22:58.40
IV.RM33.HNE. ML:1.9 0.0004165 0.44 AML other m 2017-04-03T06:22:58.18
IV.SMA1.EHN. ML:2.0 0.0008334999999999999 0.32 AML other m 2017-04-03T06:22:54.52
IV.SMA1.EHE. ML:1.8 0.000493 0.34 AML other m 2017-04-03T06:22:54.60
IV.T1212.HNE. ML:1.8 0.00040449999999999997 0.5 AML other m 2017-04-03T06:22:55.80
IV.T1212.EHE. ML:1.7 0.000364 0.52 AML other m 2017-04-03T06:22:55.55
IV.T1212.EHN. ML:1.8 0.0005214999999999999 0.62 AML other m 2017-04-03T06:22:55.83
IV.T1212.HNN. ML:1.8 0.0005095000000000001 0.62 AML other m 2017-04-03T06:22:55.83
IV.T1214.EHE. ML:2.4 0.002955 0.28 AML other m 2017-04-03T06:22:53.15
IV.T1214.HNE. ML:2.4 0.0031399999999999996 0.3 AML other m 2017-04-03T06:22:53.15
IV.T1214.EHN. ML:1.9 0.0009835 1 AML other m 2017-04-03T06:22:53.20
IV.T1214.HNN. ML:2.0 0.001125 1 AML other m 2017-04-03T06:22:53.20
IV.T1216.EHN. ML:1.9 0.000399 1.7 AML other m 2017-04-03T06:22:57.04
IV.T1216.EHE. ML:1.8 0.000294 1.4 AML other m 2017-04-03T06:22:58.81
IV.T1217.EHN. ML:1.5 0.00016849999999999998 1.7 AML other m 2017-04-03T06:22:57.99
IV.T1217.EHE. ML:1.4 0.000135 0.58 AML other m 2017-04-03T06:23:00.44
IV.T1218.EHN. ML:2.5 0.00273 0.14 AML other m 2017-04-03T06:22:55.05
IV.T1218.HNN. ML:2.5 0.002585 0.14 AML other m 2017-04-03T06:22:55.05
IV.T1218.HNE. ML:2.5 0.00271 1.88 AML other m 2017-04-03T06:22:55.05
IV.T1218.EHE. ML:2.5 0.00248 1.88 AML other m 2017-04-03T06:22:55.05
IV.T1219.EHN. ML:1.6 0.00011649999999999999 1.26 AML other m 2017-04-03T06:23:01.98
IV.T1219.EHE. ML:1.7 0.00015000000000000001 1.76 AML other m 2017-04-03T06:23:01.07
IV.T1220.EHN. ML:1.9 0.00023349999999999998 0.32 AML other m 2017-04-03T06:23:07.16
IV.T1220.EHE. ML:1.9 0.0002415 0.4 AML other m 2017-04-03T06:23:07.36
IV.T1241.EHN. ML:1.9 0.0005204999999999999 0.6 AML other m 2017-04-03T06:22:55.82
IV.T1241.HNN. ML:1.9 0.0005885 0.6 AML other m 2017-04-03T06:22:55.52
IV.T1241.HNE. ML:2.1 0.000837 0.22 AML other m 2017-04-03T06:22:55.78
IV.T1241.EHE. ML:2.1 0.000838 0.22 AML other m 2017-04-03T06:22:55.78
IV.T1256.HHN. ML:1.3 0.00009845 1.54 AML other m 2017-04-03T06:22:59.98
IV.T1256.HHE. ML:1.3 0.000095 0.32 AML other m 2017-04-03T06:22:59.36
IV.T1299.HNE. ML:2.0 0.0008115 0.12 AML other m 2017-04-03T06:22:54.48
IV.T1299.EHE. ML:2.0 0.0008314999999999999 0.12 AML other m 2017-04-03T06:22:54.48
IV.T1299.EHN. ML:1.7 0.00044 0.5 AML other m 2017-04-03T06:22:54.44
IV.T1299.HNN. ML:1.7 0.000483 0.5 AML other m 2017-04-03T06:22:54.69
IV.VCEL.EHN. ML:1.8 0.000136 1.46 AML other m 2017-04-03T06:23:07.89
IV.VCEL.EHE. ML:1.8 0.000122 1.36 AML other m 2017-04-03T06:23:08.76
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