Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 31-10-2016 and time 00:38:37 (Italy) in region 4 km SW Accumoli (RI)

A magnitude ML 2.0 earthquake occured in region: 4 km SW Accumoli (RI), on

  • 30-10-2016 23:38:37 (UTC)
  • 31-10-2016 00:38:37 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.6680, 13.2090 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 5 667 667
Cittareale RI 7 482 1149
Amatrice RI 8 2657 3806
Arquata del Tronto AP 14 1178 4984
Montereale AQ 16 2581 7565
Norcia PG 17 4957 12522
Cascia PG 17 3217 15739
Capitignano AQ 18 665 16404
Campotosto AQ 18 542 16946
Borbona RI 18 617 17563
Posta RI 18 694 18257

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km NW of L'Aquila (69753 inhabitants)
41 Km W of Teramo (54892 inhabitants)
47 Km E of Terni (111501 inhabitants)
52 Km SE of Foligno (57155 inhabitants)
79 Km W of Montesilvano (53738 inhabitants)
83 Km SE of Perugia (166134 inhabitants)
84 Km NE of Guidonia Montecelio (88673 inhabitants)
85 Km NE of Tivoli (56533 inhabitants)
85 Km W of Pescara (121014 inhabitants)
86 Km W of Chieti (51815 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
Bulletin
Rev1000 		ML 2.0 2016-10-30
23:38:37		 42.6678 13.2088 12 2019-02-12
14:03:25		 Bollettino Sismico Italiano INGV 48768361
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-10-30 23:38:37 ± 0.08
Latitude 42.6678 ± 0.0045
Longitude 13.2088 ± 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 48768361

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 492
Semi-minor axis of confidence ellipse (meter) 128
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 187
Circular confidence region, given by single value of horizontal uncertainty (meter) 490.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 91
Number of associated phases, regardless of their use for origin computation 32
Number of defining phases 32
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.03238
Epicentral distance of station farthest from the epicenter (degree) 0.43977
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 17
Magnitude information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 15
Type of magnitude ML
Reference to an origin 48768361
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2017-08-07 08:38:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FIAM.HHZ. 2016-10-30T23:38:52.78 0.6 undecidable manual S 190 45.0216 91 0.34 44
IV.GUMA.HHZ. 2016-10-30T23:38:52.91 0.6 undecidable manual S 13 45.0216 91 0.47 43
MN.AQU.HLZ. 2016-10-30T23:38:51.62 0.6 undecidable manual S 155 38.3283 92 0.96 36
IV.GIGS.HHZ. 2016-10-30T23:38:50.43 0.6 undecidable manual S 129 38.1285 92 -0.17 47
IV.TERO.HHZ. 2016-10-30T23:38:48.67 0.6 undecidable manual S 99 32.6451 92 -0.46 44
IV.OFFI.HHE. 2016-10-30T23:38:47.50 0.1 undecidable manual P 52 48.8178 91 0.59 82
IV.T1246.HHN. 2016-10-30T23:38:46.88 0.3 undecidable manual S 112 25.0527 93 -0.22 71
IV.T1217.EHZ. 2016-10-30T23:38:46.23 0.6 undecidable manual S 282 23.1546 94 -0.39 46
IV.CAMP.HHZ. 2016-10-30T23:38:46.27 0.6 undecidable manual S 132 21.9669 94 -0.02 49
IV.GUMA.HHZ. 2016-10-30T23:38:46.59 0.6 undecidable manual P 13 45.0216 91 0.27 45
IV.T1243.HHZ. 2016-10-30T23:38:45.51 0.6 undecidable manual S 81 19.7691 96 -0.21 48
MN.AQU.HLZ. 2016-10-30T23:38:45.29 0.6 undecidable manual P 155 38.3283 92 -0.01 48
IV.RM33.EHZ. 2016-10-30T23:38:45.35 0.6 undecidable manual S 179 17.6712 98 0.2 48
IV.FIAM.HHZ. 2016-10-30T23:38:45.76 0.3 undecidable manual P 190 45.0216 91 -0.56 63
IV.GIGS.HHZ. 2016-10-30T23:38:44.98 0.3 undecidable manual P 129 38.1285 92 -0.28 68
IV.LNSS.HHZ. 2016-10-30T23:38:44.69 0.6 undecidable manual S 242 15.5733 103 0.09 49
IV.ARRO.EHZ. 2016-10-30T23:38:44.97 0.6 undecidable manual P 255 37.5291 92 -0.2 46
IV.TERO.HHZ. 2016-10-30T23:38:44.07 0.1 undecidable manual P 99 32.6451 92 -0.34 91
IV.T1246.HHN. 2016-10-30T23:38:43.12 0.1 undecidable manual P 112 25.0527 93 -0.13 96
IV.SMA1.EHZ. 2016-10-30T23:38:43.53 0.6 undecidable manual S 112 11.0778 120 0.04 50
IV.T1243.HHZ. 2016-10-30T23:38:42.16 0.3 undecidable manual P 81 19.7691 96 -0.29 71
IV.T1201.HNN. 2016-10-30T23:38:42.24 0.6 undecidable manual S 109 3.5964 158 0.06 51
IV.T1204.EHZ. 2016-10-30T23:38:42.84 0.3 undecidable manual S 84 8.88 130 -0.16 73
IV.RM33.EHZ. 2016-10-30T23:38:42.24 0.1 undecidable manual P 179 17.6712 98 0.13 97
IV.T1217.EHZ. 2016-10-30T23:38:42.65 0.3 undecidable manual P 282 23.1546 94 -0.31 70
IV.CAMP.HHZ. 2016-10-30T23:38:42.72 0.6 undecidable manual P 132 21.9669 94 -0.05 49
IV.T1299.HNN. 2016-10-30T23:38:42.71 0.6 undecidable manual S 122 7.0929 139 0.05 51
IV.LNSS.HHZ. 2016-10-30T23:38:41.82 0.1 undecidable manual P 242 15.5733 103 0.03 100
IV.SMA1.EHZ. 2016-10-30T23:38:41.45 0.1 undecidable manual P 112 11.0778 120 0.29 95
IV.T1299.HNN. 2016-10-30T23:38:40.85 0.1 undecidable manual P 122 7.0929 139 0.17 99
IV.T1201.HNN. 2016-10-30T23:38:40.56 0.1 undecidable manual P 109 3.5964 158 0.16 100
IV.T1204.EHZ. 2016-10-30T23:38:40.95 0.1 undecidable manual P 84 8.88 130 0.08 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ARRO.EHE. ML:1.6 0.00016404255 0.1664 AML other m 2016-10-30T23:38:52.63
IV.ARRO.EHN. ML:1.7 0.00019268795 0.1664 AML other m 2016-10-30T23:38:53.19
IV.ASSB.HHE. ML:1.7 0.00011180380000000002 0.256 AML other m 2016-10-30T23:38:36.28
IV.ASSB.HHN. ML:1.6 0.00007340274499999999 0.1664 AML other m 2016-10-30T23:38:53.06
IV.CAMP.HHN. ML:1.5 0.00020271700000000002 0.2176 AML other m 2016-10-30T23:38:47.25
IV.CAMP.HHE. ML:1.6 0.00022879275 0.4608 AML other m 2016-10-30T23:38:46.96
IV.FEMA.HNE. ML:2.1 0.0005051532 0.2048 AML other m 2016-10-30T23:38:28.88
IV.FEMA.HNN. ML:2.1 0.0005165276 0.1152 AML other m 2016-10-30T23:38:29.15
IV.GIGS.HHE. ML:1.2 0.00005273332 0.0768 AML other m 2016-10-30T23:38:52.47
IV.GIGS.HHN. ML:1.2 0.000058296824999999996 0.0768 AML other m 2016-10-30T23:38:50.97
IV.GUMA.HHE. ML:2.5 0.0009324707500000001 0.3712 AML other m 2016-10-30T23:38:53.30
IV.GUMA.HHN. ML:2.3 0.00061770385 0.4992 AML other m 2016-10-30T23:38:53.57
IV.GUMA.HNE. ML:2.3 0.00065506705 0.2944 AML other m 2016-10-30T23:38:53.30
IV.GUMA.HNN. ML:2.3 0.0006061764000000001 0.4096 AML other m 2016-10-30T23:38:53.30
IV.LNSS.HHN. ML:2.3 0.001660832 0.3584 AML other m 2016-10-30T23:38:44.90
IV.LNSS.HHE. ML:1.8 0.0005459558 0.1792 AML other m 2016-10-30T23:38:44.95
IV.RM33.EHE. ML:2.2 0.001167276 0.1152 AML other m 2016-10-30T23:38:45.79
IV.RM33.HNE. ML:2.2 0.0011486265 0.1152 AML other m 2016-10-30T23:38:45.78
IV.RM33.HNN. ML:2.0 0.0008336296999999999 0.1152 AML other m 2016-10-30T23:38:45.64
IV.RM33.EHN. ML:2.0 0.0008282106 0.1152 AML other m 2016-10-30T23:38:45.64
IV.SMA1.EHN. ML:2.5 0.0032999765 0.0896 AML other m 2016-10-30T23:38:44.17
IV.SMA1.EHE. ML:2.7 0.005834846499999999 0.1408 AML other m 2016-10-30T23:38:44.11
IV.T1204.EHE. ML:2.4 0.0033035589999999997 0.192 AML other m 2016-10-30T23:38:43.59
IV.T1204.EHN. ML:2.3 0.0023055235 0.0896 AML other m 2016-10-30T23:38:42.94
IV.T1215.HNE. ML:2.0 0.0004312149 0.1024 AML other m 2016-10-30T23:38:34.85
IV.T1215.EHE. ML:2.0 0.0004046606 0.1024 AML other m 2016-10-30T23:38:34.80
IV.T1215.EHN. ML:2.0 0.000403241 0.1536 AML other m 2016-10-30T23:38:34.85
IV.T1215.HNN. ML:1.9 0.00037903735000000005 0.128 AML other m 2016-10-30T23:38:34.77
IV.T1216.EHE. ML:2.3 0.0009811155 0.256 AML other m 2016-10-30T23:38:28.88
IV.T1216.EHN. ML:2.1 0.00065725115 0.128 AML other m 2016-10-30T23:38:29.20
IV.T1217.EHE. ML:1.8 0.0004017360000000001 0.1536 AML other m 2016-10-30T23:38:46.42
IV.T1217.HNN. ML:2.2 0.00091052005 0.2304 AML other m 2016-10-30T23:38:46.44
IV.T1217.EHN. ML:2.1 0.00087690033 0.2304 AML other m 2016-10-30T23:38:46.44
IV.T1217.HNE. ML:1.8 0.00040012315 0.128 AML other m 2016-10-30T23:38:46.34
IV.T1256.HNE. ML:1.7 0.00016951194999999996 0.1408 AML other m 2016-10-30T23:38:33.36
IV.T1256.HHE. ML:1.7 0.00018644744999999998 0.1408 AML other m 2016-10-30T23:38:33.36
IV.T1256.HHN. ML:1.8 0.00022118085 0.2816 AML other m 2016-10-30T23:38:31.92
IV.T1256.HNN. ML:1.8 0.00023564705 0.2816 AML other m 2016-10-30T23:38:31.79
IV.TERO.HHE. ML:2.0 0.0004305194 0.1024 AML other m 2016-10-30T23:38:49.68
IV.TERO.HNN. ML:2.0 0.00040662399999999996 0.128 AML other m 2016-10-30T23:38:49.40
IV.TERO.HHN. ML:2.0 0.00045353295000000003 0.1024 AML other m 2016-10-30T23:38:49.45
IV.TERO.HNE. ML:2.0 0.00039336855 0.1024 AML other m 2016-10-30T23:38:49.68
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