Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 02-11-2016 and time 09:53:27 (Italy) in region 8 km NW Accumoli (RI)

A magnitude ML 2.1 earthquake occured in region: 8 km NW Accumoli (RI), on

  • 02-11-2016 08:53:27 (UTC)
  • 02-11-2016 09:53:27 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7480, 13.1780 at 3 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 8 667 667
Norcia PG 9 4957 5624
Arquata del Tronto AP 10 1178 6802
Cascia PG 14 3217 10019
Cittareale RI 15 482 10501
Amatrice RI 16 2657 13158
Castelsantangelo sul Nera MC 17 281 13439
Montegallo AP 17 523 13962
Preci PG 19 724 14686
Acquasanta Terme AP 19 2916 17602

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km W of Teramo (54892 inhabitants)
45 Km SE of Foligno (57155 inhabitants)
48 Km NW of L'Aquila (69753 inhabitants)
48 Km E of Terni (111501 inhabitants)
76 Km SE of Perugia (166134 inhabitants)
84 Km W of Montesilvano (53738 inhabitants)
91 Km W of Pescara (121014 inhabitants)
91 Km NE of Guidonia Montecelio (88673 inhabitants)
92 Km W of Chieti (51815 inhabitants)
93 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 2.1 2016-11-02
08:53:27		 42.7482 13.1782 3 2016-11-02
09:09:15		 Sala Sismica INGV-Roma 31603361
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-11-02 08:53:27 ± 0.15
Latitude 42.7482 ± 0.0072
Longitude 13.1782 ± 0.0098
Depth (km) 3 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 31603361

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 849
Semi-minor axis of confidence ellipse (meter) 231
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 230
Circular confidence region, given by single value of horizontal uncertainty (meter) 850.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 44
Number of associated phases, regardless of their use for origin computation 33
Number of defining phases 31
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.48
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.68079
Number of stations at which the event was observed 25
Number of stations from which data was used for origin computation 24
Magnitude information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 31603361
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2016-11-02 09:09:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CESX.HHZ. 2016-11-02T08:53:46.99 0.6 undecidable manual S 252 50.616 93 1.48 28
IV.T0110.HHZ. 2016-11-02T08:53:42.19 1.0 negative manual P 139 75.5688 50 0.19 23
IV.T1247.HHZ. 2016-11-02T08:53:41.15 0.6 undecidable manual S 164 35.4423 95 0.91 38
IV.FIAM.HHZ. 2016-11-02T08:53:38.91 1.0 undecidable manual P 185 53.502 50 0.31 23
IV.CESX.HHZ. 2016-11-02T08:53:38.24 0.1 undecidable manual P 252 50.616 93 0.17 95
IV.ASSB.HHZ. 2016-11-02T08:53:37.02 0.6 negative manual P 308 53.4021 50 -1.56 26
IV.T1247.HHZ. 2016-11-02T08:53:36.22 0.6 negative manual P 164 35.4423 95 1.2 34
IV.T1215.EHZ. 2016-11-02T08:53:36.75 0.6 undecidable manual S 283 25.8519 97 -0.2 49
XO.AM05.EHZ. 2016-11-02T08:53:35.02 0.1 undecidable manual P 29 29.1486 96 1.25 66
IV.TERO.HNZ. 2016-11-02T08:53:35.67 0.1 undecidable manual P 112 37.4292 95 0.24 96
IV.GIGS.HHZ. 2016-11-02T08:53:35.75 1.0 positive manual P 135 45.9207 94 -1.38 15
IV.FDMO.HHZ. 2016-11-02T08:53:34.58 0.1 negative manual P 347 32.8449 95 0.07 100
IV.T1216.EHZ. 2016-11-02T08:53:34.99 3.0 undecidable manual S -0.23 0
IV.T1211.EHZ. 2016-11-02T08:53:34.32 0.6 negative manual P 228 35.5422 95 -0.74 41
IV.T1256.HHZ. 2016-11-02T08:53:34.97 0.1 undecidable manual P 8 28.8489 96 1.24 66
IV.ARRO.EHZ. 2016-11-02T08:53:34.93 0.6 positive manual P 241 38.5281 94 -0.72 41
IV.T1243.HHZ. 2016-11-02T08:53:33.47 3.0 undecidable manual S 104 22.755 98 -2.4 0
IV.CAMP.HHZ. 2016-11-02T08:53:33.55 0.3 undecidable manual P 141 30.1476 96 -0.43 70
IV.RM33.EHZ. 2016-11-02T08:53:33.06 0.6 positive manual P 174 26.6511 96 -0.23 49
IV.SMA1.EHZ. 2016-11-02T08:53:33.05 0.6 undecidable manual S 135 18.2706 99 -1.29 33
IV.T1241.EHZ. 2016-11-02T08:53:32.33 1.0 undecidable manual P 60 23.8539 97 -0.39 24
IV.T1215.EHZ. 2016-11-02T08:53:32.63 0.6 negative manual P 283 25.8519 97 -0.5 46
IV.T1243.HHZ. 2016-11-02T08:53:32.08 0.1 negative manual P 104 22.755 98 -0.43 94
IV.LNSS.HHZ. 2016-11-02T08:53:32.17 0.3 positive manual P 215 19.6692 99 0.28 73
IV.T1204.EHZ. 2016-11-02T08:53:32.63 0.6 undecidable manual S 125 13.875 102 -0.19 50
IV.SMA1.EHZ. 2016-11-02T08:53:31.97 0.3 undecidable manual P 135 18.2706 99 0.35 73
IV.NRCA.HNZ. 2016-11-02T08:53:31.43 0.6 undecidable manual S 331 10.7781 106 -0.37 49
IV.T1217.EHZ. 2016-11-02T08:53:31.90 0.3 undecidable manual P 259 20.4684 98 -0.16 75
IV.T1245.HHZ. 2016-11-02T08:53:31.85 0.6 undecidable manual S 4 12.0768 104 -0.37 49
IV.MMO1.HNZ. 2016-11-02T08:53:31.50 0.1 undecidable manual P 36 20.6682 98 -0.59 90
IV.T1245.HHZ. 2016-11-02T08:53:30.47 0.6 positive manual P 4 12.0768 104 0.08 52
IV.T1204.EHZ. 2016-11-02T08:53:30.97 0.3 undecidable manual P 125 13.875 102 0.22 75
IV.NRCA.HNZ. 2016-11-02T08:53:30.05 0.6 negative manual P 331 10.7781 106 -0.1 52
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ARRO.EHN. ML:1.7 0.0001875 0.26 AML other m 2016-11-02T08:53:43.59
IV.ARRO.EHE. ML:1.6 0.000156 0.18 AML other m 2016-11-02T08:53:44.64
IV.CAMP.HHN. ML:2.0 0.000544 0.28 AML other m 2016-11-02T08:53:39.23
IV.CAMP.HHE. ML:2.1 0.0007239999999999999 0.22 AML other m 2016-11-02T08:53:39.13
IV.FDMO.HHN. ML:2.2 0.0007605 0.32 AML other m 2016-11-02T08:53:41.01
IV.FIAM.HHN. ML:1.8 0.0001595 0.5 AML other m 2016-11-02T08:53:49.50
IV.FIAM.HHE. ML:1.9 0.000199 0.22 AML other m 2016-11-02T08:53:47.78
IV.GIGS.HHE. ML:1.5 0.00010015000000000001 0.54 AML other m 2016-11-02T08:53:43.05
IV.GIGS.HHN. ML:1.3 0.0000649 0.84 AML other m 2016-11-02T08:53:43.41
IV.LNSS.HHE. ML:1.6 0.000313 0.52 AML other m 2016-11-02T08:53:38.25
IV.LNSS.HHN. ML:1.9 0.0006805 0.76 AML other m 2016-11-02T08:53:38.49
IV.NRCA.HHN. ML:1.8 0.0009951768 0.0768 AML other m 2016-11-02T08:53:31.53
IV.NRCA.HNN. ML:1.7 0.0009201539 0.3008 AML other m 2016-11-02T08:53:31.54
IV.RM33.HNN. ML:2.4 0.0014765000000000002 0.22 AML other m 2016-11-02T08:53:39.12
IV.RM33.EHN. ML:2.4 0.0015049999999999998 0.22 AML other m 2016-11-02T08:53:39.12
IV.RM33.HNE. ML:2.5 0.0018849999999999997 0.18 AML other m 2016-11-02T08:53:39.51
IV.RM33.EHE. ML:2.5 0.0017850000000000001 0.18 AML other m 2016-11-02T08:53:39.42
IV.SMA1.EHE. ML:2.2 0.00138 0.2 AML other m 2016-11-02T08:53:36.09
IV.SMA1.EHN. ML:2.0 0.0010245 0.14 AML other m 2016-11-02T08:53:36.10
IV.T1241.EHN. ML:2.2 0.001095 0.38 AML other m 2016-11-02T08:53:37.25
IV.T1241.EHE. ML:2.0 0.0006450000000000001 0.9 AML other m 2016-11-02T08:53:38.66
IV.T1245.HHN. ML:2.3 0.003105 0.14 AML other m 2016-11-02T08:53:36.57
IV.T1245.HNN. ML:2.4 0.0033399999999999997 0.14 AML other m 2016-11-02T08:53:36.57
IV.T1245.HHE. ML:2.1 0.0020549999999999995 0.66 AML other m 2016-11-02T08:53:35.83
IV.T1245.HNE. ML:2.2 0.00219 0.64 AML other m 2016-11-02T08:53:35.83
IV.T1247.HHN. ML:2.3 0.000756 0.16 AML other m 2016-11-02T08:53:45.25
IV.T1247.HHE. ML:2.4 0.0010899999999999998 0.16 AML other m 2016-11-02T08:53:42.97
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