Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 01-11-2016 and time 06:31:34 (Italy) in region 4 km NW Accumoli (RI)

A magnitude ML 1.8 earthquake occured in region: 4 km NW Accumoli (RI), on

  • 01-11-2016 05:31:34 (UTC)
  • 01-11-2016 06:31:34 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7240, 13.2230 at 12 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
Cittareale RI 13 482 4984
Norcia PG 13 4957 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)
50 Km SE of Foligno (57155 inhabitants)
50 Km E of Terni (111501 inhabitants)
79 Km W of Montesilvano (53738 inhabitants)
80 Km SE of Perugia (166134 inhabitants)
86 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)
98 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 1.8 2016-11-01
05:31:34		 42.724 13.2233 12 2019-02-12
14:03:39		 Bollettino Sismico Italiano INGV 54246381
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-11-01 05:31:34 ± 0.05
Latitude 42.7240 ± 0.0027
Longitude 13.2233 ± 0.0049
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 54246381

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 379
Semi-minor axis of confidence ellipse (meter) 184
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 248
Circular confidence region, given by single value of horizontal uncertainty (meter) 380.0
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 52
Number of defining phases 49
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.29
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.80040
Number of stations at which the event was observed 33
Number of stations from which data was used for origin computation 30
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 58
Type of magnitude ML
Reference to an origin 54246381
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-03-01 17:18:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CING.HHZ. 2016-11-01T05:31:57.71 0.3 undecidable manual S 358 72.2721 91 1.81 31
IV.FIAM.HNZ. 2016-11-01T05:31:50.34 0.6 undecidable manual S 190 51.3153 92 0.04 47
IV.SAMA.HHZ. 2016-11-01T05:31:47.50 3.0 undecidable manual P 0
IV.CING.HHZ. 2016-11-01T05:31:47.07 0.1 undecidable manual P 358 72.2721 91 0.37 84
IV.GIGS.HHZ. 2016-11-01T05:31:47.45 0.3 undecidable manual S 136 41.4252 92 -0.22 68
IV.ARVD.HHZ. 2016-11-01T05:31:47.84 0.3 undecidable manual P 345 88.8444 91 -1.41 39
IV.T1211.EHZ. 2016-11-01T05:31:46.77 0.3 undecidable manual S 235 36.741 93 0.35 67
IV.EL6.EHZ. 2016-11-01T05:31:46.24 0.6 undecidable manual P 352 67.8765 91 0.22 44
IV.SNTG.HHZ. 2016-11-01T05:31:45.41 0.3 undecidable manual P 339 63.1923 91 0.11 68
IV.T1247.HHZ. 2016-11-01T05:31:45.30 0.1 undecidable manual S 169 31.9458 94 0.17 95
IV.TERO.HHZ. 2016-11-01T05:31:45.33 0.3 undecidable manual S 110 33.0447 93 -0.09 71
IV.OFFI.HHZ. 2016-11-01T05:31:43.01 0.6 undecidable manual P 58 44.3223 92 0.62 41
IV.T1216.EHZ. 2016-11-01T05:31:43.16 0.3 undecidable manual S 318 24.8529 96 -0.09 74
IV.CAMP.HHZ. 2016-11-01T05:31:43.45 0.3 undecidable manual S 144 25.752 95 -0.05 73
IV.FIAM.HNZ. 2016-11-01T05:31:43.40 0.3 undecidable manual P 190 51.3153 92 -0.07 70
IV.T1246.HHZ. 2016-11-01T05:31:43.72 0.1 undecidable manual S 125 26.9508 95 -0.09 96
IV.T1241.HNZ. 2016-11-01T05:31:42.44 0.1 undecidable manual S 49 22.3554 97 -0.16 96
IV.RM33.EHZ. 2016-11-01T05:31:42.98 0.3 undecidable manual S 182 23.8539 96 0 74
IV.T1217.EHZ. 2016-11-01T05:31:42.70 0.3 undecidable manual S 267 23.8539 96 -0.28 71
IV.T1221.EHZ. 2016-11-01T05:31:41.01 3.0 undecidable manual P 0
IV.ARRO.EHZ. 2016-11-01T05:31:41.80 0.3 undecidable manual P 247 40.626 92 -0.03 72
IV.T1243.HHZ. 2016-11-01T05:31:41.36 0.3 undecidable manual S 99 18.5703 101 -0.23 71
IV.T1211.EHZ. 2016-11-01T05:31:41.20 0.1 undecidable manual P 235 36.741 93 -0.03 97
IV.GUMA.HHZ. 2016-11-01T05:31:41.91 0.3 undecidable manual P 14 38.628 93 0.39 67
IV.LNSS.HHZ. 2016-11-01T05:31:41.88 0.1 undecidable manual S 228 20.0688 99 -0.1 98
IV.GIGS.HHZ. 2016-11-01T05:31:41.73 0.3 undecidable manual P 136 41.4252 92 -0.22 69
IV.T1215.EHZ. 2016-11-01T05:31:40.19 0.1 undecidable manual P 287 30.1476 94 -0.02 98
IV.SMA1.EHZ. 2016-11-01T05:31:40.33 0.3 undecidable manual S 139 13.7751 113 -0.04 75
IV.TERO.HHZ. 2016-11-01T05:31:40.56 0.1 undecidable manual P 110 33.0447 93 -0.09 95
XO.AM05.EHZ. 2016-11-01T05:31:40.28 0.3 undecidable manual P 20 30.0477 94 0.09 72
IV.T1245.HHZ. 2016-11-01T05:31:40.55 0.3 undecidable manual S 349 14.9739 109 -0.11 74
IV.T1220.EHZ. 2016-11-01T05:31:40.76 0.1 undecidable manual P 346 44.2224 92 -1.62 50
IV.T1256.HHZ. 2016-11-01T05:31:40.26 0.3 undecidable manual P 0 31.3464 94 -0.13 72
IV.T1247.HHZ. 2016-11-01T05:31:40.48 0.1 undecidable manual P 169 31.9458 94 0 98
IV.T1217.EHZ. 2016-11-01T05:31:39.10 0.3 undecidable manual P 267 23.8539 96 -0.14 73
IV.CAMP.HHZ. 2016-11-01T05:31:39.53 0.1 undecidable manual P 144 25.752 95 -0.01 98
IV.T1201.HNZ. 2016-11-01T05:31:39.13 0.1 undecidable manual S 163 7.6812 138 0.09 100
IV.T1246.HHZ. 2016-11-01T05:31:39.77 0.1 undecidable manual P 125 26.9508 95 0.05 98
IV.T1241.HNZ. 2016-11-01T05:31:39.04 0.1 undecidable manual P 49 22.3554 97 0.02 99
IV.FDMO.HHZ. 2016-11-01T05:31:39.60 3.0 undecidable manual P -1.8 0
IV.RM33.EHZ. 2016-11-01T05:31:39.23 0.3 undecidable manual P 182 23.8539 96 -0.02 74
IV.T1299.EHZ. 2016-11-01T05:31:39.83 0.1 undecidable manual S 154 11.0778 123 0.11 99
IV.T1204.EHZ. 2016-11-01T05:31:39.22 0.1 undecidable manual S 125 9.2796 131 -0.12 99
IV.T1216.EHZ. 2016-11-01T05:31:39.44 0.1 undecidable manual P 318 24.8529 96 0.04 98
IV.T1243.HHZ. 2016-11-01T05:31:38.46 0.1 undecidable manual P 99 18.5703 101 0.02 100
IV.LNSS.HHZ. 2016-11-01T05:31:38.65 0.1 undecidable manual P 228 20.0688 99 -0.02 100
IV.MMO1.EHZ. 2016-11-01T05:31:38.84 0.1 undecidable manual P 23 21.1677 98 0 100
IV.T1299.EHZ. 2016-11-01T05:31:37.58 0.1 undecidable manual P 154 11.0778 123 0.22 97
IV.T1204.EHZ. 2016-11-01T05:31:37.27 0.1 undecidable manual P 125 9.2796 131 0.12 99
IV.SMA1.EHZ. 2016-11-01T05:31:37.86 0.1 undecidable manual P 139 13.7751 113 0.12 99
IV.T1201.HNZ. 2016-11-01T05:31:37.18 0.1 undecidable manual P 163 7.6812 138 0.21 97
IV.T1245.HHZ. 2016-11-01T05:31:37.92 0.3 undecidable manual P 349 14.9739 109 0.01 75
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.T1204.EHN. ML:1.5 0.00040159945000000003 0.0608 AML other m 2016-11-01T05:31:39.30
IV.T1204.EHE. ML:1.6 0.00045385050000000006 0.2816 AML other m 2016-11-01T05:31:40.65
IV.SMA1.EHN. ML:1.7 0.00044934165 1.3984 AML other m 2016-11-01T05:31:40.94
IV.SMA1.EHE. ML:1.6 0.00036135070000000005 0.0992 AML other m 2016-11-01T05:31:41.21
IV.LNSS.HHE. ML:1.7 0.0003405422 0.2592 AML other m 2016-11-01T05:31:42.05
IV.LNSS.HHN. ML:2.0 0.00070464045 0.1216 AML other m 2016-11-01T05:31:42.02
IV.T1241.EHE. ML:1.7 0.00031304805000000003 0.1792 AML other m 2016-11-01T05:31:48.86
IV.T1241.HNE. ML:1.7 0.00029308679999999997 0.1696 AML other m 2016-11-01T05:31:48.86
IV.T1241.HNN. ML:1.7 0.00031551835 0.1792 AML other m 2016-11-01T05:31:48.82
IV.T1241.EHN. ML:1.7 0.00031906955000000003 0.1824 AML other m 2016-11-01T05:31:48.83
IV.T1217.EHN. ML:1.8 0.0003863829 0.272 AML other m 2016-11-01T05:31:42.85
IV.T1217.HNN. ML:1.8 0.00039454659999999995 0.288 AML other m 2016-11-01T05:31:42.84
IV.T1217.HNE. ML:1.6 0.000219867255 0.064 AML other m 2016-11-01T05:31:45.01
IV.T1217.EHE. ML:1.6 0.00021099135 0.064 AML other m 2016-11-01T05:31:45.01
IV.RM33.EHN. ML:1.6 0.00020899485000000002 0.0992 AML other m 2016-11-01T05:31:43.83
IV.RM33.HNE. ML:1.6 0.00024748075 0.2112 AML other m 2016-11-01T05:31:43.88
IV.RM33.HNN. ML:1.6 0.00021056375999999998 0.0896 AML other m 2016-11-01T05:31:44.11
IV.RM33.EHE. ML:1.6 0.00023204415 0.0992 AML other m 2016-11-01T05:31:44.16
IV.T1216.EHE. ML:2.1 0.0006690941499999999 0.528 AML other m 2016-11-01T05:31:46.41
IV.T1216.EHN. ML:2.1 0.0007293934999999999 0.224 AML other m 2016-11-01T05:31:48.02
IV.CAMP.HHE. ML:1.7 0.0002749174 0.2208 AML other m 2016-11-01T05:31:43.56
IV.CAMP.HHN. ML:1.4 0.00012474166 0.2368 AML other m 2016-11-01T05:31:43.79
IV.T1215.EHE. ML:1.9 0.0003489273 0.064 AML other m 2016-11-01T05:31:45.31
IV.T1215.EHN. ML:1.6 0.00020304449999999986 0.064 AML other m 2016-11-01T05:31:45.32
IV.T1215.HNN. ML:1.7 0.0002202851955 0.08 AML other m 2016-11-01T05:31:45.28
IV.T1215.HNE. ML:1.9 0.00033459095 0.08 AML other m 2016-11-01T05:31:45.35
IV.T1256.HHE. ML:2.0 0.0004331082 0.1984 AML other m 2016-11-01T05:31:47.72
IV.T1256.HNE. ML:2.0 0.00045724715000000003 0.208 AML other m 2016-11-01T05:31:47.63
IV.T1256.HNN. ML:2.0 0.0005122919 0.24 AML other m 2016-11-01T05:31:46.37
IV.T1256.HHN. ML:2.0 0.00046320035000000005 0.4384 AML other m 2016-11-01T05:31:49.04
XO.AM05.EHN. ML:1.2 0.000078295295 0.08 AML other m 2016-11-01T05:31:47.56
XO.AM05.HNN. ML:1.7 0.0002527702 0.0992 AML other m 2016-11-01T05:31:47.53
XO.AM05.EHE. ML:2.2 0.00078772725 0.1024 AML other m 2016-11-01T05:31:47.49
XO.AM05.HNE. ML:1.7 0.0002144811 0.1184 AML other m 2016-11-01T05:31:47.29
IV.T1247.HHE. ML:2.0 0.00045974680000000003 0.1216 AML other m 2016-11-01T05:31:45.73
IV.T1247.HHN. ML:2.1 0.00051055805 0.1408 AML other m 2016-11-01T05:31:46.09
IV.TERO.HNE. ML:1.6 0.00017495289999999998 0.2784 AML other m 2016-11-01T05:31:56.15
IV.TERO.HHE. ML:1.6 0.00017737605 0.2592 AML other m 2016-11-01T05:31:56.15
IV.TERO.HNN. ML:1.6 0.0001827637 0.1376 AML other m 2016-11-01T05:31:56.51
IV.TERO.HHN. ML:1.7 0.00019643285500000002 0.1184 AML other m 2016-11-01T05:31:56.44
IV.T1221.HNE. ML:1.5 0.0001345257615 0.112 AML other m 2016-11-01T05:31:46.12
IV.T1221.EHE. ML:1.5 0.00012687909999999997 0.096 AML other m 2016-11-01T05:31:46.12
IV.T1221.HNN. ML:1.6 0.00014751912750000001 0.176 AML other m 2016-11-01T05:31:46.05
IV.T1221.EHN. ML:2.1 0.0005774214999999998 7.808 AML other m 2016-11-01T05:31:43.95
IV.T1211.EHE. ML:1.8 0.00023505244999999996 0.096 AML other m 2016-11-01T05:31:46.96
IV.T1211.EHN. ML:1.7 0.00018884849999999999 0.128 AML other m 2016-11-01T05:31:46.97
IV.T1211.HNN. ML:1.7 0.00019474875000000002 0.208 AML other m 2016-11-01T05:31:46.88
IV.T1211.HNE. ML:1.8 0.00023091475 0.08 AML other m 2016-11-01T05:31:46.96
IV.OFFI.HHE. ML:2.0 0.000296619 0.48 AML other m 2016-11-01T05:31:54.96
IV.OFFI.HHN. ML:2.0 0.00032134485 0.8576 AML other m 2016-11-01T05:32:02.87
IV.SNTG.HNE. ML:1.8 0.00011215780099999999 0.2304 AML other m 2016-11-01T05:31:57.29
IV.SNTG.HHN. ML:1.6 0.00008581218 0.1216 AML other m 2016-11-01T05:31:57.81
IV.SNTG.HNN. ML:2.1 0.0002237633 0.64 AML other m 2016-11-01T05:31:55.88
IV.SNTG.HHE. ML:1.7 0.00009380273 0.24 AML other m 2016-11-01T05:31:57.40
IV.EL6.EHN. ML:2.0 0.00015412879999999996 0.3008 AML other m 2016-11-01T05:32:02.48
IV.EL6.EHE. ML:2.0 0.00016062715000000002 0.1376 AML other m 2016-11-01T05:31:59.10
IV.CING.HHE. ML:1.6 0.00007092224 0.16 AML other m 2016-11-01T05:32:02.30
IV.CING.HHN. ML:1.7 0.00007423538 0.24 AML other m 2016-11-01T05:31:59.88
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
Waveforms Seismic signals in miniseed + resp format Download