Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 17-04-2020 and time 02:17:02 (Italy) in region 4 km S Arquata del Tronto (AP)

A magnitude ML 1.5 earthquake occured in region: 4 km S Arquata del Tronto (AP), on

  • 17-04-2020 00:17:02 (UTC)
  • 17-04-2020 02:17:02 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7370, 13.2970 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
Arquata del Tronto AP 4 1178 1178
Accumoli RI 6 667 1845
Acquasanta Terme AP 10 2916 4761
Amatrice RI 12 2657 7418
Montegallo AP 12 523 7941
Valle Castellana TE 17 977 8918
Cittareale RI 17 482 9400
Norcia PG 18 4957 14357
Montemonaco AP 18 604 14961
Rocca Santa Maria TE 20 537 15498

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km W of Teramo (54892 inhabitants)
44 Km N of L'Aquila (69753 inhabitants)
54 Km E of Foligno (57155 inhabitants)
57 Km E of Terni (111501 inhabitants)
74 Km W of Montesilvano (53738 inhabitants)
81 Km W of Pescara (121014 inhabitants)
83 Km NW of Chieti (51815 inhabitants)
85 Km E of Perugia (166134 inhabitants)
94 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
Bulletin
Rev1000 		ML 1.5 2020-04-17
00:17:02		 42.7373 13.297 11 2020-07-18
21:08:33		 Bollettino Sismico Italiano INGV 78440361
Reviewed
Rev100 		ML 1.6 2020-04-17
00:17:02		 42.7388 13.312 14 2020-04-17
00:24:55		 Sala Sismica INGV-Roma 78299511
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-04-17 00:17:02 ± 0.07
Latitude 42.7373 ± 0.0027
Longitude 13.2970 ± 0.0061
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 78440361

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 549
Semi-minor axis of confidence ellipse (meter) 101
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 72
Circular confidence region, given by single value of horizontal uncertainty (meter) 550.0
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 56
Number of defining phases 55
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.36
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.80309
Number of stations at which the event was observed 29
Number of stations from which data was used for origin computation 28
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 38
Type of magnitude ML
Reference to an origin 78440361
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-04-21 09:51:13

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 26
Type of magnitude ML
Reference to an origin 78299511
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-04-17 00:24:55
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ARVD.HHZ. 2020-04-17T00:17:30.55 0.3 undecidable manual S 341 89.1441 50 1.47 38
IV.ATCC.EHZ. 2020-04-17T00:17:25.90 0.6 undecidable manual S 313 72.8715 50 1.17 31
IV.EL6.EHZ. 2020-04-17T00:17:24.36 0.3 undecidable manual S 347 67.5768 50 1.05 49
IV.SNTG.HHZ. 2020-04-17T00:17:22.73 0.3 undecidable manual S 333 64.2912 50 0.29 66
IV.LAV9.HHZ. 2020-04-17T00:17:22.63 3.0 undecidable manual P -0.43 0
IV.VCEL.EHZ. 2020-04-17T00:17:21.40 0.3 undecidable manual S 130 58.497 50 0.51 63
IV.FIAM.HHZ. 2020-04-17T00:17:20.08 0.3 undecidable manual S 196 54.1014 50 0.36 66
IV.FAGN.HHZ. 2020-04-17T00:17:20.95 0.3 undecidable manual S 156 57.2982 50 0.37 65
IV.MNTT.EHZ. 2020-04-17T00:17:18.39 0.3 undecidable manual S 34 43.4232 50 1.52 40
IV.MML1.HNE. 2020-04-17T00:17:18.53 0.3 undecidable manual S 328 49.4172 50 0.07 71
IV.CESI.HHZ. 2020-04-17T00:17:17.07 0.3 undecidable manual S 313 43.5231 50 0.16 70
IV.ARVD.HHZ. 2020-04-17T00:17:17.57 0.3 undecidable manual P 341 89.1441 50 -0.37 61
IV.SAP2.EHE. 2020-04-17T00:17:16.67 0.3 undecidable manual S 12 40.7259 50 0.52 65
IV.ATCC.EHZ. 2020-04-17T00:17:15.21 0.3 undecidable manual P 313 72.8715 50 -0.22 65
IV.GUMA.HHZ. 2020-04-17T00:17:15.33 0.3 undecidable manual S 5 36.2415 50 0.38 68
IV.GIGS.HHZ. 2020-04-17T00:17:15.39 0.1 undecidable manual S 144 38.7279 50 -0.23 93
IV.CSP1.EHZ. 2020-04-17T00:17:15.81 0.3 undecidable manual S 349 40.0266 50 -0.15 71
IV.FDMO.HHZ. 2020-04-17T00:17:14.93 0.1 undecidable manual S 333 37.3293 50 -0.31 92
IV.EL6.EHZ. 2020-04-17T00:17:14.28 0.3 undecidable manual P 347 67.5768 50 -0.33 65
IT.MTCL.HGZ. 2020-04-17T00:17:14.97 0.1 undecidable manual S 320 37.3293 50 -0.28 92
IV.VCEL.EHZ. 2020-04-17T00:17:13.00 0.3 undecidable manual P 130 58.497 50 -0.21 67
IV.SNTG.HHZ. 2020-04-17T00:17:13.58 0.3 undecidable manual P 333 64.2912 50 -0.53 62
IV.MF5.EHZ. 2020-04-17T00:17:13.82 0.1 undecidable manual S 25 30.747 50 0.33 92
IV.FIAM.HHZ. 2020-04-17T00:17:12.31 0.3 undecidable manual P 196 54.1014 50 -0.23 68
IV.TERO.HHZ. 2020-04-17T00:17:12.10 0.3 undecidable manual S 117 28.0497 50 -0.67 63
IV.FAGN.HHZ. 2020-04-17T00:17:12.82 0.3 undecidable manual P 156 57.2982 50 -0.22 68
IV.RM33.EHZ. 2020-04-17T00:17:12.47 0.3 undecidable manual S 195 26.2515 50 0.19 72
IV.LNSS.HHZ. 2020-04-17T00:17:12.53 0.3 undecidable manual S 235 25.752 50 0.39 69
IV.MML1.HNE. 2020-04-17T00:17:11.44 0.1 undecidable manual P 328 49.4172 50 -0.37 88
IV.MC2.EHZ. 2020-04-17T00:17:11.16 0.3 undecidable manual S 336 21.1677 50 0.22 72
IV.MNTT.EHZ. 2020-04-17T00:17:11.23 0.1 undecidable manual P 34 43.4232 50 0.34 90
IV.CAMP.HHZ. 2020-04-17T00:17:11.43 0.3 undecidable manual S 158 24.1536 50 -0.3 70
IV.SAP2.EHE. 2020-04-17T00:17:10.42 0.3 undecidable manual P 12 40.7259 50 -0.06 72
IV.NRCA.HNZ. 2020-04-17T00:17:10.02 0.1 undecidable manual S 306 18.2706 120 -0.06 100
IV.CESI.HHZ. 2020-04-17T00:17:10.64 0.1 negative manual P 313 43.5231 50 -0.28 91
IV.GIGS.HHZ. 2020-04-17T00:17:09.68 0.1 undecidable manual P 144 38.7279 50 -0.49 88
IV.MMO1.EHZ. 2020-04-17T00:17:09.68 0.1 undecidable manual S 8 18.1707 120 -0.35 94
IV.CSP1.EHZ. 2020-04-17T00:17:09.99 0.1 negative manual P 349 40.0266 50 -0.38 90
IV.FDMO.HHZ. 2020-04-17T00:17:09.54 0.1 negative manual P 333 37.3293 50 -0.41 90
IT.MTCL.HGZ. 2020-04-17T00:17:09.58 0.1 undecidable manual P 320 37.3293 50 -0.38 90
IV.GUMA.HHZ. 2020-04-17T00:17:09.68 0.1 negative manual P 5 36.2415 50 -0.1 96
IV.LNSS.HHZ. 2020-04-17T00:17:08.21 0.1 positive manual P 235 25.752 50 0.05 99
IV.MF5.EHZ. 2020-04-17T00:17:08.93 0.1 negative manual P 25 30.747 50 -0.01 98
IV.FEMA.HNE. 2020-04-17T00:17:08.96 0.3 undecidable manual P 321 32.0457 50 -0.18 71
IV.TERO.HHZ. 2020-04-17T00:17:08.10 0.1 negative manual P 117 28.0497 50 -0.43 91
IV.SMA1.EHZ. 2020-04-17T00:17:08.49 0.3 undecidable manual S 165 12.2766 131 0.12 75
IV.RM33.EHZ. 2020-04-17T00:17:08.22 0.1 positive manual P 195 26.2515 50 -0.02 99
IV.T1299.EHZ. 2020-04-17T00:17:08.91 0.3 undecidable manual S 186 11.4774 133 0.73 63
IV.MC2.EHZ. 2020-04-17T00:17:07.36 0.1 negative manual P 336 21.1677 50 -0.11 98
IV.CAMP.HHZ. 2020-04-17T00:17:07.73 0.1 positive manual P 158 24.1536 50 -0.2 96
IV.MTRA.HNZ. 2020-04-17T00:17:07.54 0.3 undecidable manual S 75 8.3805 142 0.1 75
IV.SMA1.EHZ. 2020-04-17T00:17:06.28 0.1 positive manual P 165 12.2766 131 0.29 96
IV.T1299.EHZ. 2020-04-17T00:17:06.38 0.1 positive manual P 186 11.4774 133 0.5 92
IV.MMO1.EHZ. 2020-04-17T00:17:06.73 0.1 negative manual P 8 18.1707 120 -0.22 97
IV.NRCA.HNZ. 2020-04-17T00:17:06.93 0.1 negative manual P 306 18.2706 120 -0.05 100
IV.MTRA.HNZ. 2020-04-17T00:17:05.62 0.1 positive manual P 75 8.3805 142 0.17 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTRA.HNN. ML:1.8 0.0008755 0.26 AML other m 2020-04-17T00:17:07.67
IV.MTRA.EHN. ML:1.8 0.0008615000000000001 0.28 AML other m 2020-04-17T00:17:07.67
IV.MTRA.HNE. ML:1.7 0.0006565000000000001 0.54 AML other m 2020-04-17T00:17:07.82
IV.MTRA.EHE. ML:1.6 0.0005895000000000001 0.52 AML other m 2020-04-17T00:17:07.82
IV.SMA1.EHE. ML:1.8 0.0006795 1.06 AML other m 2020-04-17T00:17:08.91
IV.SMA1.EHN. ML:2.0 0.0010575 1.72 AML other m 2020-04-17T00:17:09.91
IV.NRCA.HNE. ML:2.1 0.00103 0.36 AML other m 2020-04-17T00:17:10.15
IV.NRCA.HHE. ML:2.2 0.001125 0.36 AML other m 2020-04-17T00:17:10.15
IV.NRCA.HNN. ML:2.1 0.001029 0.08 AML other m 2020-04-17T00:17:10.32
IV.NRCA.HHN. ML:2.1 0.0010355000000000002 0.08 AML other m 2020-04-17T00:17:10.32
IV.CAMP.HHN. ML:1.4 0.00015949999999999997 1.04 AML other m 2020-04-17T00:17:11.82
IV.CAMP.HHE. ML:1.2 0.00009735 0.54 AML other m 2020-04-17T00:17:12.93
IV.TERO.HHE. ML:1.5 0.00017299999999999998 0.98 AML other m 2020-04-17T00:17:12.22
IV.LNSS.HHE. ML:1.7 0.0003125 0.3 AML other m 2020-04-17T00:17:12.66
IV.LNSS.HHN. ML:1.7 0.0002925 0.18 AML other m 2020-04-17T00:17:12.96
IV.RM33.EHN. ML:1.6 0.000244 0.7 AML other m 2020-04-17T00:17:12.92
IV.TERO.HHN. ML:1.5 0.0001725 0.74 AML other m 2020-04-17T00:17:13.59
IV.RM33.EHE. ML:1.5 0.000188 0.16 AML other m 2020-04-17T00:17:13.70
IV.GIGS.HHN. ML:1.0 0.00003785 0.56 AML other m 2020-04-17T00:17:15.46
IV.FDMO.HHN. ML:1.4 0.00008305 0.16 AML other m 2020-04-17T00:17:15.74
IV.GUMA.HHN. ML:1.6 0.00014350000000000002 0.44 AML other m 2020-04-17T00:17:15.72
IV.FDMO.HHE. ML:1.3 0.00007489999999999999 1.22 AML other m 2020-04-17T00:17:15.36
IV.GIGS.HHE. ML:1.0 0.000035999999999999994 1.34 AML other m 2020-04-17T00:17:16.79
IV.CESI.HHN. ML:1.7 0.000142 0.42 AML other m 2020-04-17T00:17:17.52
IV.GUMA.HHE. ML:1.7 0.00017649999999999998 0.22 AML other m 2020-04-17T00:17:17.70
IV.CESI.HHE. ML:1.4 0.00006905 0.82 AML other m 2020-04-17T00:17:17.53
IV.FIAM.HHN. ML:0.9 0.000020150000000000002 1.02 AML other m 2020-04-17T00:17:20.38
IV.FIAM.HHE. ML:1.0 0.0000227 0.7 AML other m 2020-04-17T00:17:21.38
IV.MNTT.EHN. ML:1.6 0.00011175 0.9 AML other m 2020-04-17T00:17:21.80
IV.MNTT.EHE. ML:1.6 0.0001316 0.92 AML other m 2020-04-17T00:17:22.23
IV.FAGN.HHE. ML:1.5 0.00007435 0.24 AML other m 2020-04-17T00:17:22.59
IV.SNTG.HHE. ML:1.0 0.00001965 0.3 AML other m 2020-04-17T00:17:23.62
IV.FAGN.HHN. ML:1.5 0.00007035 0.26 AML other m 2020-04-17T00:17:23.83
IV.SNTG.HHN. ML:1.2 0.0000305 0.28 AML other m 2020-04-17T00:17:23.83
IV.VCEL.EHN. ML:1.4 0.0000619 0.46 AML other m 2020-04-17T00:17:24.63
IV.VCEL.EHE. ML:1.4 0.00005885 0.28 AML other m 2020-04-17T00:17:24.80
IV.ARVD.HHE. ML:1.1 0.0000149 1.1 AML other m 2020-04-17T00:17:30.79
IV.ARVD.HHN. ML:1.1 0.000013899999999999999 1.04 AML other m 2020-04-17T00:17:31.15
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