Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 16-10-2016 and time 23:27:36 (UTC) in region 7 km NW Accumoli (RI)

A magnitude ML 1.4 earthquake occured in region: 7 km NW Accumoli (RI), on

  • 16-10-2016 23:27:36 (UTC)
  • 17-10-2016 01:27:36 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7370, 13.1850 at 10 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
Accumoli RI 7 667 667
Norcia PG 10 4957 5624
Arquata del Tronto AP 10 1178 6802
Cittareale RI 13 482 7284
Cascia PG 14 3217 10501
Amatrice RI 15 2657 13158
Montegallo AP 17 523 13681
Castelsantangelo sul Nera MC 18 281 13962
Acquasanta Terme AP 19 2916 16878
Preci PG 20 724 17602

Municipalities with at least 50000 inhabitants

An earthquake occurred to
43 Km W of Teramo (54892 inhabitants)
46 Km SE of Foligno (57155 inhabitants)
46 Km NW of L'Aquila (69753 inhabitants)
48 Km E of Terni (111501 inhabitants)
77 Km SE of Perugia (166134 inhabitants)
83 Km W of Montesilvano (53738 inhabitants)
90 Km W of Pescara (121014 inhabitants)
90 Km NE of Guidonia Montecelio (88673 inhabitants)
91 Km W of Chieti (51815 inhabitants)
92 Km NE of Tivoli (56533 inhabitants)
95 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
Reviewed
Rev100 		ML 1.4 2016-10-16
23:27:36		 42.7368 13.185 10 2016-10-17
08:16:16		 Sala Sismica INGV-Roma 30293251
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-10-16 23:27:36 ± 0.04
Latitude 42.7368 ± 0.0018
Longitude 13.1850 ± 0.0037
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 30293251

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 303
Semi-minor axis of confidence ellipse (meter) 65
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 54
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) 41
Number of associated phases, regardless of their use for origin computation 54
Number of defining phases 54
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.04407
Epicentral distance of station farthest from the epicenter (degree) 0.97846
Number of stations at which the event was observed 29
Number of stations from which data was used for origin computation 29
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 11
Type of magnitude ML
Reference to an origin 30293251
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2016-10-17 08:16:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CING.HHZ. 2016-10-16T23:27:58.83 0.6 undecidable manual S 1 70.8735 50 0.59 39
IV.ATCC.EHZ. 2016-10-16T23:27:57.57 0.6 undecidable manual S 319 66.5778 50 0.48 41
IV.SNTG.HHZ. 2016-10-16T23:27:56.05 0.3 undecidable manual S 341 60.7947 50 0.49 62
IV.NARO.HHZ. 2016-10-16T23:27:54.57 0.1 undecidable manual P 333 108.6135 50 -0.31 78
IV.FIAM.HHZ. 2016-10-16T23:27:53.76 0.3 undecidable manual S 186 52.3032 50 0.47 63
IV.ASSB.HHZ. 2016-10-16T23:27:53.94 0.3 undecidable manual S 309 54.6009 50 0.04 69
IV.GIGS.HHZ. 2016-10-16T23:27:51.02 0.3 undecidable manual S 135 44.622 50 -0.22 68
IV.CING.HHZ. 2016-10-16T23:27:49.51 0.3 undecidable manual P 1 70.8735 50 0.44 61
IV.TERO.HHZ. 2016-10-16T23:27:48.64 0.3 undecidable manual S 110 36.4413 50 -0.41 66
IV.T1247.HHZ. 2016-10-16T23:27:48.35 0.6 undecidable manual S 164 34.0437 50 -0.06 48
IV.T1211.EHZ. 2016-10-16T23:27:48.68 0.3 undecidable manual S 230 35.1426 50 -0.03 72
IV.ATCC.EHZ. 2016-10-16T23:27:48.47 0.1 undecidable manual P 319 66.5778 50 0.07 89
IV.SNTG.HHZ. 2016-10-16T23:27:47.54 0.1 undecidable manual P 341 60.7947 50 0.03 91
IV.T1246.HHE. 2016-10-16T23:27:47.09 0.3 undecidable manual S 124 30.3474 50 -0.33 68
IV.T1215.EHZ. 2016-10-16T23:27:46.05 0.3 undecidable manual S 286 26.751 110 -0.35 68
IV.ASSB.HHZ. 2016-10-16T23:27:46.36 0.1 undecidable manual P 309 54.6009 50 -0.2 89
IV.CAMP.HHZ. 2016-10-16T23:27:46.63 0.3 undecidable manual S 141 28.8489 50 -0.39 67
IV.FIAM.HHZ. 2016-10-16T23:27:46.32 0.1 undecidable manual P 186 52.3032 50 0.12 91
IV.OFFI.HHZ. 2016-10-16T23:27:46.00 0.1 positive manual P 61 46.3203 50 0.72 78
IV.RM33.EHZ. 2016-10-16T23:27:45.76 0.3 undecidable manual S 175 25.3524 111 -0.19 70
IV.T1216.EHZ. 2016-10-16T23:27:44.41 0.3 undecidable manual S 322 21.7671 114 -0.37 68
IV.LNSS.HHZ. 2016-10-16T23:27:44.01 0.3 undecidable manual S 218 18.9699 117 0.1 73
IV.T1243.HHZ. 2016-10-16T23:27:44.51 0.3 undecidable manual S 102 21.9669 114 -0.32 69
IV.GIGS.HHZ. 2016-10-16T23:27:44.99 0.1 undecidable manual P 135 44.622 50 -0.03 94
IV.ARRO.EHZ. 2016-10-16T23:27:44.01 0.1 undecidable manual P 243 38.4282 50 -0.06 94
IV.MC2.EHZ. 2016-10-16T23:27:44.50 0.3 undecidable manual S 1 19.3695 116 0.47 67
IV.T1217.EHZ. 2016-10-16T23:27:44.47 0.3 undecidable manual S 262 20.868 115 -0.03 73
IV.MMO1.EHZ. 2016-10-16T23:27:44.40 0.3 undecidable manual S 33 21.3675 114 -0.27 70
IV.SMA1.EHZ. 2016-10-16T23:27:43.39 0.3 undecidable manual S 134 16.9719 119 0.09 73
IV.T1247.HHZ. 2016-10-16T23:27:43.13 0.3 undecidable manual P 164 34.0437 50 -0.26 68
IV.T1211.EHZ. 2016-10-16T23:27:43.46 0.1 positive manual P 230 35.1426 50 -0.1 94
IV.TERO.HHZ. 2016-10-16T23:27:43.42 0.1 positive manual P 110 36.4413 50 -0.34 89
IV.T1246.HHE. 2016-10-16T23:27:42.60 0.1 positive manual P 124 30.3474 50 -0.22 93
IV.T1215.EHZ. 2016-10-16T23:27:42.08 0.1 positive manual P 286 26.751 110 -0.15 95
IV.T1245.HHZ. 2016-10-16T23:27:42.06 0.3 undecidable manual S 1 13.2756 126 -0.15 73
IV.CAMP.HHZ. 2016-10-16T23:27:42.54 0.1 undecidable manual P 141 28.8489 50 -0.05 96
IV.T1204.EHZ. 2016-10-16T23:27:42.23 0.3 undecidable manual S 122 12.6762 127 0.18 72
IV.T1299.EHN. 2016-10-16T23:27:42.73 0.3 undecidable manual S 145 13.875 125 0.35 70
IV.MMO1.EHZ. 2016-10-16T23:27:41.09 0.1 positive manual P 33 21.3675 114 -0.13 96
IV.RM33.EHZ. 2016-10-16T23:27:41.95 0.1 undecidable manual P 175 25.3524 111 -0.01 97
IV.NRCA.HHZ. 2016-10-16T23:27:41.42 0.3 undecidable manual S 332 12.1767 128 -0.48 68
IV.T1216.EHZ. 2016-10-16T23:27:41.16 0.1 undecidable manual P 322 21.7671 114 -0.14 96
IV.T1243.HHZ. 2016-10-16T23:27:41.19 0.1 positive manual P 102 21.9669 114 -0.14 96
IV.T1217.EHZ. 2016-10-16T23:27:41.16 0.1 positive manual P 262 20.868 115 0.03 98
IV.T1204.EHZ. 2016-10-16T23:27:40.00 0.1 positive manual P 122 12.6762 127 0.29 94
IV.T1299.EHN. 2016-10-16T23:27:40.33 0.1 positive manual P 145 13.875 125 0.42 91
IV.SMA1.EHZ. 2016-10-16T23:27:40.61 0.1 positive manual P 134 16.9719 119 0.17 96
IV.LNSS.HHZ. 2016-10-16T23:27:40.98 0.1 positive manual P 218 18.9699 117 0.19 95
IV.MC2.EHZ. 2016-10-16T23:27:40.94 0.1 positive manual P 1 19.3695 116 0.08 97
IV.T1201.HNZ. 2016-10-16T23:27:39.74 0.1 undecidable manual P 149 10.2786 133 0.39 92
IV.NRCA.HHZ. 2016-10-16T23:27:39.60 0.1 positive manual P 332 12.1767 128 -0.03 99
IV.T1202.EHN. 2016-10-16T23:27:39.97 0.3 undecidable manual S 139 4.8951 153 -0.29 71
IV.T1245.HHZ. 2016-10-16T23:27:39.82 0.1 undecidable manual P 1 13.2756 126 0.01 99
IV.T1202.EHN. 2016-10-16T23:27:38.74 0.1 negative manual P 139 4.8951 153 0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ARRO.EHN. ML:1.1 0.000047350000000000006 0.72 AML other m 2016-10-16T23:27:51.04
IV.ARRO.EHE. ML:1.1 0.00005155 0.46 AML other m 2016-10-16T23:27:51.46
IV.ASSB.HHE. ML:1.2 0.000040249999999999996 0.18 AML other m 2016-10-16T23:27:54.54
IV.ASSB.HHN. ML:1.3 0.000044200000000000004 1.4 AML other m 2016-10-16T23:27:54.59
IV.CAMP.HHN. ML:0.9 0.0000413 0.54 AML other m 2016-10-16T23:27:47.17
IV.CAMP.HHE. ML:1.0 0.000042800000000000004 0.22 AML other m 2016-10-16T23:27:47.24
IV.FIAM.HHN. ML:0.8 0.0000147 1.16 AML other m 2016-10-16T23:27:56.66
IV.FIAM.HHE. ML:0.9 0.0000192 1.58 AML other m 2016-10-16T23:28:10.00
IV.LNSS.HHN. ML:1.8 0.0005164999999999999 0.16 AML other m 2016-10-16T23:27:44.45
IV.LNSS.HHE. ML:1.8 0.0005255 0.68 AML other m 2016-10-16T23:27:44.83
IV.NRCA.HHE. ML:1.8 0.0007019999999999999 0.12 AML other m 2016-10-16T23:27:42.22
IV.NRCA.HHN. ML:1.8 0.0006919999999999999 0.4 AML other m 2016-10-16T23:27:42.29
IV.T1204.EHN. ML:1.4 0.0002475 1.02 AML other m 2016-10-16T23:27:43.14
IV.T1204.EHE. ML:1.5 0.000343 0.46 AML other m 2016-10-16T23:27:43.40
IV.T1217.EHE. ML:1.2 0.00011800000000000002 0.08 AML other m 2016-10-16T23:27:45.82
IV.T1217.EHN. ML:1.3 0.0001499999999999999 1.14 AML other m 2016-10-16T23:27:47.40
IV.T1245.HHE. ML:1.6 0.00041049999999999995 1.14 AML other m 2016-10-16T23:27:43.99
IV.T1245.HHN. ML:1.7 0.0005715 0.94 AML other m 2016-10-16T23:27:43.44
IV.T1247.HHE. ML:1.2 0.00007495 0.18 AML other m 2016-10-16T23:27:51.90
IV.T1247.HHN. ML:1.3 0.00008054999999999999 0.4 AML other m 2016-10-16T23:27:52.50
IV.TERO.HHE. ML:1.5 0.000129 0.1 AML other m 2016-10-16T23:27:49.32
IV.TERO.HHN. ML:1.6 0.0001715 0.18 AML other m 2016-10-16T23:27:49.32
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