Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 03-04-2020 and time 01:18:00 (UTC) in region 4 km NW Accumoli (RI)

A magnitude ML 1.6 earthquake occured in region: 4 km NW Accumoli (RI), on

  • 03-04-2020 01:18:00 (UTC)
  • 03-04-2020 03:18:00 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7250, 13.2190 at 9 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
Accumoli RI 4 667 667
Arquata del Tronto AP 8 1178 1845
Amatrice RI 12 2657 4502
Norcia PG 13 4957 9459
Cittareale RI 13 482 9941
Montegallo AP 16 523 10464
Acquasanta Terme AP 16 2916 13380
Cascia PG 17 3217 16597
Castelsantangelo sul Nera MC 20 281 16878

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km W of Teramo (54892 inhabitants)
44 Km NW of L'Aquila (69753 inhabitants)
49 Km SE of Foligno (57155 inhabitants)
50 Km E of Terni (111501 inhabitants)
80 Km W of Montesilvano (53738 inhabitants)
80 Km SE of Perugia (166134 inhabitants)
87 Km W of Pescara (121014 inhabitants)
88 Km W of Chieti (51815 inhabitants)
90 Km NE of Guidonia Montecelio (88673 inhabitants)
91 Km NE of Tivoli (56533 inhabitants)
97 Km E of Viterbo (67173 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 1.6 2020-04-03
01:18:00		 42.7253 13.2187 9 2020-07-18
21:08:41		 Bollettino Sismico Italiano INGV 80434841
Reviewed
Rev100 		ML 1.7 2020-04-03
01:18:00		 42.7248 13.2187 9 2020-04-03
01:27:57		 Sala Sismica INGV-Roma 77809991
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-04-03 01:18:00 ± 0.05
Latitude 42.7253 ± 0.0027
Longitude 13.2187 ± 0.0037
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 80434841

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 340
Semi-minor axis of confidence ellipse (meter) 160
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) 340.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 37
Number of associated phases, regardless of their use for origin computation 86
Number of defining phases 86
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.35
Epicentral distance of station closest to the epicenter (degree) 0.10252
Epicentral distance of station farthest from the epicenter (degree) 0.95058
Number of stations at which the event was observed 45
Number of stations from which data was used for origin computation 45
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 64
Type of magnitude ML
Reference to an origin 77809991
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-04-03 01:27:57

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 39
Type of magnitude ML
Reference to an origin 80434841
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-06-23 08:30:14
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PIEI.HHZ. 2020-04-03T01:18:31.73 0.3 undecidable manual S 329 105.5166 50 0.32 59
IV.FRON.EHZ. 2020-04-03T01:18:29.08 0.1 undecidable manual S 336 96.5256 50 0.08 85
IV.ARVD.HHZ. 2020-04-03T01:18:27.85 0.1 undecidable manual S 345 88.6446 50 0.97 65
IV.ATFO.HHZ. 2020-04-03T01:18:27.10 0.1 undecidable manual S 324 88.3449 50 0.28 83
IV.SSFR.HHZ. 2020-04-03T01:18:26.76 0.1 undecidable manual S 336 86.4468 50 0.46 80
IV.MURB.HHZ. 2020-04-03T01:18:25.21 0.1 undecidable manual S 317 82.0512 50 0.08 87
IV.FOSV.EHZ. 2020-04-03T01:18:23.31 0.1 undecidable manual S 330 73.2711 50 0.52 80
IV.ATCC.EHZ. 2020-04-03T01:18:22.28 0.1 undecidable manual S 318 69.375 50 0.54 81
IV.T0110.HHZ. 2020-04-03T01:18:22.59 0.1 undecidable manual S 140 71.4729 50 0.28 85
IV.EL6.EHZ. 2020-04-03T01:18:21.83 0.1 undecidable manual S 352 67.6767 50 0.54 81
IV.SNTG.HHZ. 2020-04-03T01:18:20.39 0.1 undecidable manual S 339 62.8926 50 0.36 85
IV.VCEL.EHZ. 2020-04-03T01:18:20.15 0.1 undecidable manual S 126 62.6928 50 0.19 88
IV.FAGN.HHZ. 2020-04-03T01:18:19.58 0.1 undecidable manual S 150 59.0964 50 0.58 81
IV.PIEI.HHZ. 2020-04-03T01:18:18.48 0.3 undecidable manual P 329 105.5166 50 0.25 60
IV.MOMA.HHZ. 2020-04-03T01:18:17.67 0.1 undecidable manual S 280 53.502 50 0.15 91
IT.FOPC.HGN. 2020-04-03T01:18:17.02 0.3 undecidable manual S 303 49.9167 50 0.46 64
IV.CESX.HHZ. 2020-04-03T01:18:17.42 0.1 undecidable manual S 256 53.1024 50 0 94
IT.GNU.HGE. 2020-04-03T01:18:17.94 0.3 undecidable manual S 280 53.502 50 0.42 64
IV.MNTT.EHZ. 2020-04-03T01:18:16.54 0.1 undecidable manual S 39 48.3183 50 0.41 87
IV.INTR.HHZ. 2020-04-03T01:18:16.28 0.1 undecidable manual P 144 97.125 50 -0.65 73
IV.FIAM.HHZ. 2020-04-03T01:18:16.68 0.1 undecidable manual S 189 51.4152 50 -0.27 89
IV.FRON.EHZ. 2020-04-03T01:18:16.61 0.1 undecidable manual P 336 96.5256 50 -0.23 82
IV.ATFO.HHZ. 2020-04-03T01:18:15.70 0.1 undecidable manual P 324 88.3449 50 0.12 86
IV.CERT.HHZ. 2020-04-03T01:18:15.74 0.3 undecidable manual P 193 88.245 50 0.17 63
IV.MML1.HNE. 2020-04-03T01:18:15.39 0.1 undecidable manual S 335 47.5191 50 -0.52 84
IV.SAP2.EHZ. 2020-04-03T01:18:15.69 0.1 undecidable manual S 20 43.7229 50 0.79 76
IV.SSFR.HHZ. 2020-04-03T01:18:15.17 0.1 undecidable manual P 336 86.4468 50 -0.11 86
IV.ARVD.HHZ. 2020-04-03T01:18:15.60 0.1 undecidable manual P 345 88.6446 50 -0.02 87
IV.PF6.EHN. 2020-04-03T01:18:15.21 0.1 undecidable manual S 358 45.8208 50 -0.25 90
IV.GUMA.HHZ. 2020-04-03T01:18:14.02 0.1 undecidable manual S 14 38.628 50 0.48 87
IV.GIGS.HHZ. 2020-04-03T01:18:14.30 0.1 undecidable manual S 136 41.8248 50 -0.09 94
MN.AQU.HNN. 2020-04-03T01:18:14.80 0.3 undecidable manual S 160 43.9227 50 -0.16 69
IV.MURB.HHZ. 2020-04-03T01:18:14.49 0.1 undecidable manual P 317 82.0512 50 -0.11 87
IV.CSP1.EHZ. 2020-04-03T01:18:13.59 0.1 undecidable manual S 358 40.626 50 -0.5 86
IV.FOSV.EHZ. 2020-04-03T01:18:13.01 0.1 negative manual P 330 73.2711 50 -0.24 86
IV.CESI.HHZ. 2020-04-03T01:18:13.35 0.1 undecidable manual S 321 40.1265 50 -0.6 83
IV.T0110.HHZ. 2020-04-03T01:18:12.71 0.1 undecidable manual P 140 71.4729 50 -0.27 86
IV.FDMO.HHZ. 2020-04-03T01:18:12.37 0.1 undecidable manual S 343 36.1416 50 -0.51 87
IV.EL6.EHZ. 2020-04-03T01:18:12.22 0.1 undecidable manual P 352 67.6767 50 -0.17 88
IV.MF5.EHZ. 2020-04-03T01:18:12.91 0.1 undecidable manual S 34 35.1426 50 0.31 91
IV.ATCC.EHZ. 2020-04-03T01:18:12.43 0.1 undecidable manual P 318 69.375 50 -0.22 87
IV.TERO.HHZ. 2020-04-03T01:18:11.34 0.1 undecidable manual S 110 33.4443 50 -0.81 77
IV.VCEL.EHZ. 2020-04-03T01:18:11.77 0.1 negative manual P 126 62.6928 50 0.15 89
IV.SNTG.HHZ. 2020-04-03T01:18:11.32 0.1 undecidable manual P 339 62.8926 50 -0.34 86
IV.TRTR.HHZ. 2020-04-03T01:18:11.73 0.1 undecidable manual P 81 57.3981 50 0.93 70
IT.MTCL.HGZ. 2020-04-03T01:18:11.78 0.3 undecidable manual S 329 34.743 50 -0.72 60
IT.GNU.HGE. 2020-04-03T01:18:10.23 0.3 undecidable manual P 280 53.502 50 0.02 70
IV.FAGN.HHZ. 2020-04-03T01:18:10.76 0.3 undecidable manual P 150 59.0964 50 -0.31 87
IV.FEMA.HNZ. 2020-04-03T01:18:10.45 0.3 undecidable manual S 332 29.6481 106 -0.49 66
IV.MNTT.EHZ. 2020-04-03T01:18:10.06 0.1 undecidable manual P 39 48.3183 50 0.65 80
IV.MOMA.HHZ. 2020-04-03T01:18:10.03 0.1 undecidable manual P 280 53.502 50 -0.18 90
IV.CESX.HHZ. 2020-04-03T01:18:10.20 0.1 undecidable manual P 256 53.1024 50 0.05 93
IV.FIAM.HHZ. 2020-04-03T01:18:09.64 0.1 undecidable manual P 189 51.4152 50 -0.25 89
IV.RM33.EHZ. 2020-04-03T01:18:09.43 0.1 undecidable manual S 181 23.9538 110 0.35 92
IT.FOPC.HGN. 2020-04-03T01:18:09.67 0.3 undecidable manual P 303 49.9167 50 0.01 70
IV.CAMP.HHZ. 2020-04-03T01:18:09.55 0.1 undecidable manual S 143 26.1516 108 -0.23 94
IV.MC2.EHZ. 2020-04-03T01:18:08.30 0.1 undecidable manual S 353 20.7681 113 0.26 94
IV.PF6.EHN. 2020-04-03T01:18:08.61 0.1 undecidable manual P 358 45.8208 50 -0.41 87
IV.LNSS.HHZ. 2020-04-03T01:18:08.13 0.1 undecidable manual S 227 19.869 113 0.37 92
IV.GUMA.HHZ. 2020-04-03T01:18:08.12 0.1 undecidable manual P 14 38.628 50 0.21 92
MN.AQU.HNN. 2020-04-03T01:18:08.41 0.3 undecidable manual P 160 43.9227 50 -0.32 67
IV.CSP1.EHZ. 2020-04-03T01:18:08.04 0.1 negative manual P 358 40.626 50 -0.19 92
IV.MML1.HNE. 2020-04-03T01:18:08.90 0.1 undecidable manual P 335 47.5191 50 -0.38 87
IV.SAP2.EHZ. 2020-04-03T01:18:08.94 0.1 undecidable manual P 20 43.7229 50 0.24 91
IV.MF5.EHZ. 2020-04-03T01:18:07.50 0.1 undecidable manual P 34 35.1426 50 0.13 94
IV.CESI.HHZ. 2020-04-03T01:18:07.77 0.1 positive manual P 321 40.1265 50 -0.38 88
IV.GIGS.HHZ. 2020-04-03T01:18:07.84 0.1 negative manual P 136 41.8248 50 -0.57 84
IV.FDMO.HHZ. 2020-04-03T01:18:07.03 0.1 undecidable manual P 343 36.1416 50 -0.5 87
IV.ARRO.EHZ. 2020-04-03T01:18:07.91 0.1 undecidable manual P 246 40.3263 50 -0.27 91
IV.MMO1.EHZ. 2020-04-03T01:18:07.94 0.1 undecidable manual S 24 21.2676 112 -0.23 94
IT.MTCL.HGZ. 2020-04-03T01:18:06.83 0.3 undecidable manual P 329 34.743 50 -0.48 66
IV.TERO.HHZ. 2020-04-03T01:18:06.55 0.1 positive manual P 110 33.4443 50 -0.56 85
IV.FEMA.HNZ. 2020-04-03T01:18:06.06 0.3 undecidable manual P 332 29.6481 106 -0.35 68
IV.SMA1.EHZ. 2020-04-03T01:18:06.00 0.1 undecidable manual S 138 14.1747 121 0.01 100
IV.RM33.EHZ. 2020-04-03T01:18:05.55 0.1 undecidable manual P 181 23.9538 110 0.21 94
IV.NRCA.HNZ. 2020-04-03T01:18:05.95 0.1 undecidable manual S 325 14.6742 120 -0.19 96
IV.CAMP.HHZ. 2020-04-03T01:18:05.53 0.1 positive manual P 143 26.1516 108 -0.22 94
IV.MTRA.HNZ. 2020-04-03T01:18:05.99 0.1 undecidable manual S 76 14.874 120 -0.21 96
IV.T1299.EHZ. 2020-04-03T01:18:05.78 0.1 undecidable manual S 153 11.3775 127 0.6 87
IV.MMO1.EHZ. 2020-04-03T01:18:04.64 0.1 undecidable manual P 24 21.2676 112 -0.18 96
IV.MC2.EHZ. 2020-04-03T01:18:04.76 0.3 undecidable manual P 353 20.7681 113 0.02 99
IV.LNSS.HHZ. 2020-04-03T01:18:04.83 0.1 positive manual P 227 19.869 113 0.25 94
IV.SMA1.EHZ. 2020-04-03T01:18:03.77 0.1 positive manual P 138 14.1747 121 0.22 96
IV.T1299.EHZ. 2020-04-03T01:18:03.57 0.1 positive manual P 153 11.3775 127 0.48 91
IV.NRCA.HNZ. 2020-04-03T01:18:03.68 0.1 positive manual P 325 14.6742 120 0.04 99
IV.MTRA.HNZ. 2020-04-03T01:18:03.71 0.1 positive manual P 76 14.874 120 0.03 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTRA.HNE. ML:2.0 0.0009025000000000001 0.28 AML other m 2020-04-03T01:18:06.57
IV.LNSS.HNE. ML:2.1 0.0009105 1.14 AML other m 2020-04-03T01:18:08.42
IV.LNSS.HHE. ML:2.1 0.0009435 1.14 AML other m 2020-04-03T01:18:08.42
IV.LNSS.HNN. ML:2.2 0.0012005 0.32 AML other m 2020-04-03T01:18:08.48
IV.LNSS.HHN. ML:2.2 0.001263 0.32 AML other m 2020-04-03T01:18:08.48
IV.CAMP.HHE. ML:1.5 0.000163 0.2 AML other m 2020-04-03T01:18:09.68
IV.CAMP.HHN. ML:1.2 0.00009015000000000001 1.18 AML other m 2020-04-03T01:18:09.33
IV.TERO.HHN. ML:1.6 0.000179 0.94 AML other m 2020-04-03T01:18:11.09
IV.TERO.HHE. ML:1.6 0.00016350000000000002 0.12 AML other m 2020-04-03T01:18:12.42
IV.FDMO.HHN. ML:1.7 0.00020400000000000003 0.34 AML other m 2020-04-03T01:18:12.70
IV.FDMO.HHE. ML:1.6 0.000168 0.28 AML other m 2020-04-03T01:18:12.70
IV.GIGS.HHE. ML:1.1 0.000045950000000000006 0.38 AML other m 2020-04-03T01:18:14.56
IV.CESI.HHN. ML:2.2 0.0004825 0.86 AML other m 2020-04-03T01:18:14.39
IV.CESI.HHE. ML:1.9 0.000286 0.72 AML other m 2020-04-03T01:18:14.03
IV.GIGS.HHN. ML:1.2 0.0000543 0.08 AML other m 2020-04-03T01:18:14.51
IV.CSP1.EHN. ML:1.6 0.000122 0.54 AML other m 2020-04-03T01:18:14.65
IV.CSP1.EHE. ML:1.7 0.0001605 0.24 AML other m 2020-04-03T01:18:14.86
IV.SNTG.HHE. ML:1.4 0.00005745 0.3 AML other m 2020-04-03T01:18:21.08
IV.SNTG.HHN. ML:1.4 0.0000506 0.16 AML other m 2020-04-03T01:18:21.63
IV.FOSV.EHE. ML:1.6 0.0000658 0.22 AML other m 2020-04-03T01:18:23.62
IV.FOSV.EHN. ML:1.7 0.00007845000000000001 0.3 AML other m 2020-04-03T01:18:24.03
IV.MURB.HHE. ML:2.0 0.000133 0.3 AML other m 2020-04-03T01:18:27.63
IV.SSFR.HHE. ML:1.9 0.00009659999999999999 0.82 AML other m 2020-04-03T01:18:29.18
IV.SSFR.HHN. ML:1.8 0.00008515000000000001 0.16 AML other m 2020-04-03T01:18:29.59
IV.MTRA.EHE. ML:2.0 0.0009026107999999999 0.28 AML other m 2020-04-03T01:18:06.57
IV.MTRA.EHN. ML:1.6 0.00041012504999999997 0.22 AML other m 2020-04-03T01:18:06.19
IV.MTRA.HNN. ML:1.6 0.00043812684999999996 0.2208 AML other m 2020-04-03T01:18:06.18
IV.SMA1.EHE. ML:1.7 0.0005275450499999999 0.44 AML other m 2020-04-03T01:18:06.59
IV.RM33.HNN. ML:1.5 0.00017934650000000002 0.5408 AML other m 2020-04-03T01:18:09.90
IV.RM33.EHE. ML:1.5 0.0001937939 0.12 AML other m 2020-04-03T01:18:10.09
IV.RM33.EHN. ML:1.4 0.0001421042 0.54 AML other m 2020-04-03T01:18:09.63
IV.EL6.EHE. ML:1.4 0.000041356910000000004 0.3 AML other m 2020-04-03T01:18:22.32
IV.EL6.EHN. ML:1.3 0.000032959884999999995 0.16 AML other m 2020-04-03T01:18:22.27
IV.ATCC.EHN. ML:1.6 0.00006294775999999999 0.34 AML other m 2020-04-03T01:18:22.55
IV.ATCC.EHE. ML:1.5 0.000055222745000000006 0.34 AML other m 2020-04-03T01:18:22.75
IV.T0110.HHE. ML:1.7 0.00007681799000000001 0.62 AML other m 2020-04-03T01:18:24.13
IV.T0110.HHN. ML:1.6 0.00006441994 0.36 AML other m 2020-04-03T01:18:24.14
IV.FRON.EHN. ML:1.3 0.000017685745000000002 0.22 AML other m 2020-04-03T01:18:30.23
IV.FRON.EHE. ML:1.2 0.00001600317 0.18 AML other m 2020-04-03T01:18:30.49
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