Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 07-11-2016 and time 07:53:30 (Italy) in region 4 km NW Accumoli (RI)

A magnitude ML 1.6 earthquake occured in region: 4 km NW Accumoli (RI), on

  • 07-11-2016 06:53:30 (UTC)
  • 07-11-2016 07:53:30 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7260, 13.2340 at 12 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 4 667 667
Arquata del Tronto AP 7 1178 1845
Amatrice RI 12 2657 4502
Cittareale RI 13 482 4984
Norcia PG 14 4957 9941
Acquasanta Terme AP 15 2916 12857
Montegallo AP 15 523 13380
Cascia PG 18 3217 16597
Castelsantangelo sul Nera MC 20 281 16878

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km W of Teramo (54892 inhabitants)
44 Km NW of L'Aquila (69753 inhabitants)
50 Km SE of Foligno (57155 inhabitants)
51 Km E of Terni (111501 inhabitants)
79 Km W of Montesilvano (53738 inhabitants)
81 Km SE of Perugia (166134 inhabitants)
85 Km W of Pescara (121014 inhabitants)
87 Km W of Chieti (51815 inhabitants)
91 Km NE of Guidonia Montecelio (88673 inhabitants)
92 Km NE of Tivoli (56533 inhabitants)
99 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 1.6 2016-11-07
06:53:30		 42.7262 13.2342 12 2016-11-07
07:05:55		 Sala Sismica INGV-Roma 32300881
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-11-07 06:53:30 ± 0.08
Latitude 42.7262 ± 0.0036
Longitude 13.2342 ± 0.0073
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 32300881

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 567
Semi-minor axis of confidence ellipse (meter) 395
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 110
Circular confidence region, given by single value of horizontal uncertainty (meter) 570.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 63
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.36872
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 3
Type of magnitude ML
Reference to an origin 32300881
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2016-11-07 07:05:55
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.VIVA.HHZ. 2016-11-07T06:53:49.53 3.0 negative manual P 2.87 0
IV.CESI.HHZ. 2016-11-07T06:53:43.75 0.6 undecidable manual S 319 40.9257 91 0.21 47
IV.T1211.EHZ. 2016-11-07T06:53:42.90 0.6 undecidable manual S 235 37.629 91 0.24 46
IV.T1215.EHZ. 2016-11-07T06:53:40.85 0.6 undecidable manual S 286 30.9468 91 -0.02 49
IV.RM33.EHZ. 2016-11-07T06:53:39.48 0.6 undecidable manual S 184 24.1536 92 0.42 45
IV.MMO1.EHZ. 2016-11-07T06:53:38.09 0.6 undecidable manual S 21 20.6682 93 -0.04 49
IV.T1241.EHZ. 2016-11-07T06:53:38.32 0.6 undecidable manual S 48 21.5673 92 -0.06 49
IV.LNSS.HHZ. 2016-11-07T06:53:38.00 0.6 undecidable manual S 229 20.868 93 -0.2 48
IV.CESI.HHZ. 2016-11-07T06:53:37.74 0.1 undecidable manual P 319 40.9257 91 -0.14 93
IV.T1211.EHZ. 2016-11-07T06:53:37.55 0.1 undecidable manual P 235 37.629 91 0.17 93
IV.T1215.EHZ. 2016-11-07T06:53:36.19 1.0 negative manual P 286 30.9468 91 -0.16 24
IV.SMA1.EHZ. 2016-11-07T06:53:36.20 0.6 undecidable manual S 142 13.4754 106 -0.02 51
IV.TERO.HHZ. 2016-11-07T06:53:36.59 0.1 undecidable manual P 111 32.2455 91 0.04 97
IV.T1216.EHZ. 2016-11-07T06:53:35.44 3.0 negative manual P -0.25 0
IV.MMO1.EHZ. 2016-11-07T06:53:34.71 1.0 positive manual P 21 20.6682 93 -0.05 25
IV.RM33.EHZ. 2016-11-07T06:53:34.65 0.1 undecidable manual P 184 24.1536 92 -0.65 86
IV.T1204.EHZ. 2016-11-07T06:53:34.92 0.6 undecidable manual S 130 8.6802 129 -0.19 49
IV.T1241.EHZ. 2016-11-07T06:53:34.99 0.1 positive manual P 48 21.5673 92 0.09 99
IV.LNSS.HHZ. 2016-11-07T06:53:34.77 0.1 undecidable manual P 229 20.868 93 -0.03 100
IV.T1204.EHZ. 2016-11-07T06:53:33.18 0.1 positive manual P 130 8.6802 129 0.16 99
IV.SMA1.EHZ. 2016-11-07T06:53:33.76 0.1 undecidable manual P 142 13.4754 106 0.1 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:1.8 0.00023349999999999998 0.1 AML other m 2016-11-07T06:54:13.38
IV.CESI.HHN. ML:2.2 0.000496 0.12 AML other m 2016-11-07T06:54:13.33
IV.LNSS.HHE. ML:1.2 0.00012104999999999999 0.14 AML other m 2016-11-07T06:53:39.04
IV.LNSS.HHN. ML:1.7 0.0003115 1.28 AML other m 2016-11-07T06:53:38.93
IV.SMA1.EHN. ML:1.5 0.00028700000000000004 0.18 AML other m 2016-11-07T06:53:37.02
IV.SMA1.EHE. ML:1.4 0.000277 0.54 AML other m 2016-11-07T06:53:37.43
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