Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 07-04-2020 and time 18:04:08 (UTC) in region 6 km SW Accumoli (RI)

A magnitude ML 1.6 earthquake occured in region: 6 km SW Accumoli (RI), on

  • 07-04-2020 18:04:08 (UTC)
  • 07-04-2020 20:04:08 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6650, 13.1940 at 10 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 6 667 667
Cittareale RI 6 482 1149
Amatrice RI 9 2657 3806
Arquata del Tronto AP 15 1178 4984
Cascia PG 16 3217 8201
Montereale AQ 16 2581 10782
Norcia PG 17 4957 15739
Posta RI 18 694 16433
Borbona RI 18 617 17050
Capitignano AQ 18 665 17715
Campotosto AQ 19 542 18257
Monteleone di Spoleto PG 20 599 18856

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km NW of L'Aquila (69753 inhabitants)
42 Km W of Teramo (54892 inhabitants)
46 Km E of Terni (111501 inhabitants)
51 Km SE of Foligno (57155 inhabitants)
80 Km W of Montesilvano (53738 inhabitants)
82 Km SE of Perugia (166134 inhabitants)
83 Km NE of Guidonia Montecelio (88673 inhabitants)
84 Km NE of Tivoli (56533 inhabitants)
87 Km W of Pescara (121014 inhabitants)
87 Km W of Chieti (51815 inhabitants)
93 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 2020-04-07
18:04:08		 42.665 13.194 10 2020-07-18
21:08:36		 Bollettino Sismico Italiano INGV 79128141
Reviewed
Rev100 		ML 1.6 2020-04-07
18:04:08		 42.673 13.2068 10 2020-04-07
18:20:39		 Sala Sismica INGV-Roma 77992071
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-04-07 18:04:08 ± 0.04
Latitude 42.6650 ± 0.0027
Longitude 13.1940 ± 0.0037
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 79128141

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 298
Semi-minor axis of confidence ellipse (meter) 233
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 236
Circular confidence region, given by single value of horizontal uncertainty (meter) 300.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 53
Number of associated phases, regardless of their use for origin computation 41
Number of defining phases 41
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.07195
Epicentral distance of station farthest from the epicenter (degree) 0.61154
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 23
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 51
Type of magnitude ML
Reference to an origin 79128141
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-05-14 08:13:20

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 40
Type of magnitude ML
Reference to an origin 77992071
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-04-07 18:20:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MOMA.HHZ. 2020-04-07T18:04:26.10 0.6 undecidable manual S 287 53.1024 50 0.49 43
IV.CSP1.EHZ. 2020-04-07T18:04:23.90 0.6 undecidable manual S 1 47.3193 50 -0.17 47
IV.FIAM.HHZ. 2020-04-07T18:04:23.60 0.3 undecidable manual S 188 44.5221 50 0.3 69
IV.GUMA.HHZ. 2020-04-07T18:04:23.80 0.6 undecidable manual S 15 45.621 50 0.2 47
IV.CESI.HHZ. 2020-04-07T18:04:23.40 0.6 undecidable manual S 328 44.4222 50 0.1 48
IV.MF5.EHZ. 2020-04-07T18:04:22.80 0.6 undecidable manual S 31 41.8248 50 0.21 47
IV.GIGS.HHZ. 2020-04-07T18:04:21.60 0.6 undecidable manual S 127 38.8278 50 -0.2 47
IV.ARRO.EHZ. 2020-04-07T18:04:20.45 0.3 undecidable manual S 255 36.2415 50 -0.65 63
IV.T0110.HHZ. 2020-04-07T18:04:20.89 0.6 undecidable manual P 135 67.8765 50 0.15 45
IV.TERO.HNZ. 2020-04-07T18:04:20.00 0.3 undecidable manual S 98 33.744 50 -0.44 68
IV.MC2.EHZ. 2020-04-07T18:04:19.10 0.3 undecidable manual S 359 27.3504 50 0.38 70
IV.VCEL.EHZ. 2020-04-07T18:04:19.68 0.6 undecidable manual P 119 60.7947 50 0.03 47
IV.MOMA.HHZ. 2020-04-07T18:04:18.47 0.3 undecidable manual P 287 53.1024 50 0 72
IV.MMO1.EHZ. 2020-04-07T18:04:18.80 0.3 undecidable manual S 23 28.1496 50 -0.14 73
IV.MNTT.EHZ. 2020-04-07T18:04:18.80 0.6 undecidable manual P 36 54.8007 50 0.07 47
IV.FIAM.HHZ. 2020-04-07T18:04:17.44 0.3 undecidable manual P 188 44.5221 50 0.3 69
IV.CESX.HHZ. 2020-04-07T18:04:17.93 0.3 undecidable manual P 263 49.9167 50 -0.05 72
IV.CSP1.EHZ. 2020-04-07T18:04:17.67 0.3 undecidable manual P 1 47.3193 50 0.09 71
IV.GUMA.HHZ. 2020-04-07T18:04:17.71 0.3 undecidable manual P 15 45.621 50 0.41 67
IV.CESI.HHZ. 2020-04-07T18:04:17.36 0.3 undecidable manual P 328 44.4222 50 0.23 70
IV.CAMP.HHZ. 2020-04-07T18:04:17.10 0.3 undecidable manual S 129 22.6551 114 -0.19 73
IV.GIGS.HHZ. 2020-04-07T18:04:16.27 0.3 undecidable manual P 127 38.8278 50 0 74
IV.MF5.EHZ. 2020-04-07T18:04:16.69 0.3 undecidable manual P 31 41.8248 50 -0.04 73
IV.MTRA.EHZ. 2020-04-07T18:04:16.10 0.3 undecidable manual S 58 19.3695 117 -0.16 74
IV.FDMO.HHZ. 2020-04-07T18:04:16.40 0.3 undecidable manual P 348 42.1245 50 -0.37 68
IV.NRCA.HHZ. 2020-04-07T18:04:16.40 0.3 undecidable manual S 341 19.7691 117 0.01 76
IV.RM33.EHZ. 2020-04-07T18:04:15.80 0.6 undecidable manual S 174 17.3715 120 0.14 50
IV.TERO.HNZ. 2020-04-07T18:04:15.44 0.3 undecidable manual P 98 33.744 50 -0.05 74
IV.ARRO.EHZ. 2020-04-07T18:04:15.53 0.1 undecidable manual P 255 36.2415 50 -0.34 92
IV.LNSS.HHZ. 2020-04-07T18:04:14.60 0.3 undecidable manual S 241 14.2746 125 -0.15 75
IV.MC2.EHZ. 2020-04-07T18:04:14.68 0.1 undecidable manual P 359 27.3504 50 0.19 97
IV.SMA1.EHZ. 2020-04-07T18:04:14.40 0.6 undecidable manual S 108 12.1767 129 0.25 49
IV.MMO1.EHZ. 2020-04-07T18:04:14.58 0.3 undecidable manual P 23 28.1496 50 -0.04 75
IV.T1299.HNZ. 2020-04-07T18:04:13.30 0.3 undecidable manual S 115 7.9809 141 0.18 75
IV.CAMP.HHZ. 2020-04-07T18:04:13.47 0.3 undecidable manual P 129 22.6551 114 -0.2 73
IV.RM33.EHZ. 2020-04-07T18:04:12.78 0.3 undecidable manual P 174 17.3715 120 0.06 76
IV.LNSS.HHZ. 2020-04-07T18:04:12.33 0.1 undecidable manual P 241 14.2746 125 0.13 100
IV.SMA1.EHZ. 2020-04-07T18:04:12.14 0.3 undecidable manual P 108 12.1767 129 0.29 73
IV.NRCA.HHZ. 2020-04-07T18:04:12.82 0.1 undecidable manual P 341 19.7691 117 -0.32 95
IV.MTRA.EHZ. 2020-04-07T18:04:12.67 0.1 undecidable manual P 58 19.3695 117 -0.4 94
IV.T1299.HNZ. 2020-04-07T18:04:11.48 0.1 undecidable manual P 115 7.9809 141 0.22 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHE. ML:2.3 0.0021545835 0.1792 AML other m 2020-04-07T18:04:15.47
IV.SMA1.EHN. ML:2.2 0.0016123219999999998 0.2048 AML other m 2020-04-07T18:04:15.42
IV.MTRA.HNN. ML:2.0 0.00074047565 0.1152 AML other m 2020-04-07T18:04:16.26
IV.MTRA.EHN. ML:2.0 0.00074509705 0.1152 AML other m 2020-04-07T18:04:16.26
IV.RM33.HNN. ML:1.8 0.0005403327500000001 0.128 AML other m 2020-04-07T18:04:16.62
IV.RM33.EHN. ML:1.8 0.0005190215499999999 0.1408 AML other m 2020-04-07T18:04:16.63
IV.NRCA.HNE. ML:1.9 0.0006400494 0.1024 AML other m 2020-04-07T18:04:16.73
IV.NRCA.HHE. ML:1.9 0.0006655161499999999 0.1024 AML other m 2020-04-07T18:04:16.73
IV.MTRA.EHE. ML:2.0 0.00086416195 0.2688 AML other m 2020-04-07T18:04:16.79
IV.MTRA.HNE. ML:2.0 0.0007932503 0.2688 AML other m 2020-04-07T18:04:16.97
IV.LNSS.HHE. ML:1.7 0.0005694660499999999 0.1024 AML other m 2020-04-07T18:04:16.95
IV.LNSS.HNE. ML:1.7 0.0005099067 0.1024 AML other m 2020-04-07T18:04:16.95
IV.RM33.HNE. ML:1.7 0.00039589034999999994 0.2176 AML other m 2020-04-07T18:04:17.11
IV.LNSS.HNN. ML:1.6 0.00042521009500000003 0.2944 AML other m 2020-04-07T18:04:17.21
IV.RM33.EHE. ML:1.7 0.00038848649999999996 0.192 AML other m 2020-04-07T18:04:17.32
IV.LNSS.HHN. ML:1.7 0.00048109155 0.256 AML other m 2020-04-07T18:04:18.14
IV.NRCA.HNN. ML:1.7 0.00036461515 0.1408 AML other m 2020-04-07T18:04:18.44
IV.NRCA.HHN. ML:1.7 0.0003706361 0.128 AML other m 2020-04-07T18:04:18.37
IV.TERO.HHN. ML:1.9 0.0003230514 0.064 AML other m 2020-04-07T18:04:20.14
IV.TERO.HNN. ML:1.8 0.00029241125 0.0768 AML other m 2020-04-07T18:04:20.15
IV.TERO.HHE. ML:1.6 0.0001530877 0.1152 AML other m 2020-04-07T18:04:21.38
IV.TERO.HNE. ML:1.6 0.000169792685 0.1536 AML other m 2020-04-07T18:04:21.64
IV.ARRO.EHN. ML:1.5 0.0001245 0.18 AML other m 2020-04-07T18:04:23.18
IV.FIAM.HHE. ML:0.9 0.000026516379999999998 0.32 AML other m 2020-04-07T18:04:23.99
IV.FDMO.HHE. ML:1.1 0.000041588315000000004 0.1408 AML other m 2020-04-07T18:04:24.15
IV.FDMO.HHN. ML:1.2 0.00004977317 0.1792 AML other m 2020-04-07T18:04:24.33
IV.ARRO.EHE. ML:1.4 0.00008824999999999999 0.7 AML other m 2020-04-07T18:04:24.37
IV.MF5.EHE. ML:1.4 0.00008022310500000001 0.2816 AML other m 2020-04-07T18:04:24.50
IV.GUMA.HHE. ML:2.1 0.000386042 0.2944 AML other m 2020-04-07T18:04:24.76
IV.GUMA.HNE. ML:2.0 0.00029789465000000005 0.256 AML other m 2020-04-07T18:04:24.79
IV.CESI.HHE. ML:1.2 0.00004581585 0.2688 AML other m 2020-04-07T18:04:24.88
IV.GUMA.HHN. ML:2.0 0.000263558 0.4608 AML other m 2020-04-07T18:04:25.24
IV.CSP1.EHN. ML:1.6 0.000112887665 0.2688 AML other m 2020-04-07T18:04:25.30
IV.CSP1.EHE. ML:1.4 0.00006658079999999999 0.256 AML other m 2020-04-07T18:04:26.21
IV.CESI.HHN. ML:1.3 0.000059589650000000006 0.32 AML other m 2020-04-07T18:04:26.66
IV.GUMA.HNN. ML:2.2 0.000531463355 0.6656 AML other m 2020-04-07T18:04:27.14
IV.MF5.EHN. ML:1.4 0.00009222010999999999 0.3968 AML other m 2020-04-07T18:04:28.02
IV.MOMA.HHN. ML:1.7 0.00010931257 0.3072 AML other m 2020-04-07T18:04:27.88
IV.CESX.HHE. ML:1.2 0.000042951110000000004 0.2432 AML other m 2020-04-07T18:04:28.24
IV.CESX.HHN. ML:1.2 0.00004098440000000001 0.4096 AML other m 2020-04-07T18:04:28.70
IV.MOMA.HHE. ML:1.6 0.00008416762 0.1536 AML other m 2020-04-07T18:04:28.60
IV.MNTT.EHN. ML:1.8 0.00012990801 0.2432 AML other m 2020-04-07T18:04:30.10
IV.VCEL.EHE. ML:1.6 0.00009111643 0.2816 AML other m 2020-04-07T18:04:30.89
IV.VCEL.EHN. ML:1.6 0.0000880475 0.1536 AML other m 2020-04-07T18:04:30.96
IV.T0110.HHN. ML:1.5 0.000055196985 0.2944 AML other m 2020-04-07T18:04:34.74
IV.T0110.HHE. ML:1.5 0.000052386484999999996 0.3584 AML other m 2020-04-07T18:04:35.36
IV.CAMP.HHE. ML:1.0 0.00006461629 0.2048 AML other m 2020-04-07T18:04:17.64
IV.CAMP.HHN. ML:1.0 0.000060408494999999996 0.2688 AML other m 2020-04-07T18:04:18.62
IV.GIGS.HHE. ML:0.8 0.000027355030000000004 0.1152 AML other m 2020-04-07T18:04:23.45
IV.GIGS.HHN. ML:1.0 0.00003536256 0.3456 AML other m 2020-04-07T18:04:21.00
IV.FIAM.HHN. ML:0.9 0.0000241428 0.1408 AML other m 2020-04-07T18:04:24.47
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