Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 29-10-2016 and time 23:25:06 (UTC) in region 2 km W Nemi (RM)

A magnitude ML 2.0 earthquake occured in region: 2 km W Nemi (RM), on

  • 29-10-2016 23:25:06 (UTC)
  • 30-10-2016 01:25:06 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.7270, 12.6940 at 9 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
Nemi RM 2 1943 1943
Ariccia RM 2 19407 21350
Genzano di Roma RM 2 23970 45320
Albano Laziale RM 3 41715 87035
Rocca di Papa RM 4 17034 104069
Castel Gandolfo RM 4 8997 113066
Lanuvio RM 5 13632 126698
Marino RM 6 43026 169724
Grottaferrata RM 7 20327 190051
Velletri RM 8 53303 243354
Frascati RM 9 22087 265441
Rocca Priora RM 10 11962 277403
Monte Compatri RM 10 11978 289381
Monte Porzio Catone RM 10 8693 298074
Ciampino RM 11 38412 336486
Lariano RM 12 13432 349918
Colonna RM 13 4287 354205
San Cesareo RM 14 15153 369358
Aprilia LT 15 73446 442804
Zagarolo RM 17 17843 460647
Pomezia RM 17 62966 523613
Labico RM 17 6379 529992
Ardea RM 18 49183 579175
Artena RM 19 14276 593451
Cisterna di Latina LT 19 36868 630319
Gallicano nel Lazio RM 19 6334 636653
Valmontone RM 19 15959 652612
Rocca Massima LT 20 1136 653748

Municipalities with at least 50000 inhabitants

An earthquake occurred to
8 Km NW of Velletri (53303 inhabitants)
15 Km N of Aprilia (73446 inhabitants)
17 Km E of Pomezia (62966 inhabitants)
25 Km SE of Roma (2864731 inhabitants)
28 Km SW of Tivoli (56533 inhabitants)
31 Km S of Guidonia Montecelio (88673 inhabitants)
31 Km N of Anzio (54211 inhabitants)
34 Km NW of Latina (125985 inhabitants)
38 Km E of Fiumicino (78395 inhabitants)
85 Km E of Civitavecchia (52991 inhabitants)
91 Km SW of L'Aquila (69753 inhabitants)
91 Km SE of Viterbo (67173 inhabitants)
93 Km S of Terni (111501 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 2016-10-29
23:25:06		 41.7273 12.6943 9 2017-04-18
14:24:22		 Bollettino Sismico Italiano INGV 43662591
Reviewed
Rev100 		ML 1.9 2016-10-29
23:25:06		 41.7385 12.6815 8 2016-10-29
23:33:50		 Sala Sismica INGV-Roma 30978831
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-10-29 23:25:06 ± 0.14
Latitude 41.7273 ± 0.0081
Longitude 12.6943 ± 0.0133
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 43662591

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1112
Semi-minor axis of confidence ellipse (meter) 811
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 249
Circular confidence region, given by single value of horizontal uncertainty (meter) 1110.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 127
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.37
Epicentral distance of station closest to the epicenter (degree) 0.03507
Epicentral distance of station farthest from the epicenter (degree) 0.75903
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 3
Type of magnitude ML
Reference to an origin 43662591
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2017-04-18 14:24:22

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 2
Type of magnitude ML
Reference to an origin 30978831
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2016-10-29 23:33:50
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SRES.HHZ. 2016-10-29T23:25:25.65 0.6 undecidable manual S 345 58.497 50 0.45 42
IV.GIUL.HHZ. 2016-10-29T23:25:23.44 0.6 undecidable manual S 112 50.1165 50 0.49 42
IV.POFI.HNE. 2016-10-29T23:25:20.35 0.6 undecidable manual P 90 84.249 50 -1.01 32
IV.TOLF.HHN. 2016-10-29T23:25:19.34 0.3 undecidable manual P 303 68.376 50 0.43 62
IV.LATB.EHZ. 2016-10-29T23:25:18.32 0.3 undecidable manual S 139 34.1436 50 -0.37 67
IV.SRES.HHZ. 2016-10-29T23:25:18.29 0.6 undecidable manual P 345 58.497 50 0.89 35
IV.CERT.HHN. 2016-10-29T23:25:18.18 0.6 undecidable manual S 44 34.2435 50 -0.52 43
IV.RCAV.EHZ. 2016-10-29T23:25:16.28 0.6 undecidable manual S 57 24.6531 111 0.4 45
IV.GIUL.HHZ. 2016-10-29T23:25:16.02 0.3 undecidable manual P 112 50.1165 50 -0.07 69
IV.CERT.HHN. 2016-10-29T23:25:13.31 0.1 undecidable manual P 44 34.2435 50 -0.33 90
IV.LATB.EHZ. 2016-10-29T23:25:13.28 0.6 undecidable manual P 139 34.1436 50 -0.35 45
IV.RCAV.EHZ. 2016-10-29T23:25:12.28 0.3 undecidable manual P 57 24.6531 111 0.26 69
IV.RMP.HHZ. 2016-10-29T23:25:11.22 0.6 undecidable manual S 4 9.2796 135 -0.1 49
IV.VIVA.HHZ. 2016-10-29T23:25:11.25 0.6 undecidable manual S 68 6.7932 144 0.51 45
IV.LAV9.HHZ. 2016-10-29T23:25:10.75 0.6 undecidable manual S 176 5.4945 149 0.25 48
IV.LAV9.HHZ. 2016-10-29T23:25:09.18 0.1 undecidable manual P 176 5.4945 149 0.27 95
IV.RDP.HHZ. 2016-10-29T23:25:09.63 0.3 undecidable manual S 20 3.8961 157 -0.62 65
IV.VIVA.HHZ. 2016-10-29T23:25:09.47 0.1 undecidable manual P 68 6.7932 144 0.42 92
IV.RMP.HHZ. 2016-10-29T23:25:09.51 0.1 undecidable manual P 4 9.2796 135 0.13 98
IV.MA9.HHZ. 2016-10-29T23:25:09.51 0.6 undecidable manual S 328 5.4945 149 -1 37
IV.RDP.HHZ. 2016-10-29T23:25:08.71 0.1 negative manual P 20 3.8961 157 -0.05 100
IV.MA9.HHZ. 2016-10-29T23:25:08.51 0.3 undecidable manual P 328 5.4945 149 -0.4 69
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LAV9.HNE. ML:2.1 0.0020033655 0.2304 AML other m 2016-10-29T23:25:10.97
IV.LAV9.HHE. ML:2.1 0.0020152265 0.2432 AML other m 2016-10-29T23:25:10.97
IV.LAV9.HHN. ML:2.1 0.0020023045 0.2816 AML other m 2016-10-29T23:25:10.98
IV.LAV9.HNN. ML:2.0 0.0017911885000000002 0.2816 AML other m 2016-10-29T23:25:10.98
IV.RDP.HHE. ML:2.0 0.002056862 0.4992 AML other m 2016-10-29T23:25:10.05
IV.RDP.HHN. ML:2.0 0.0020608149999999997 0.3072 AML other m 2016-10-29T23:25:09.91
IV.RMP.HHN. ML:1.7 0.0007605 0.42 AML other m 2016-10-29T23:25:12.33
IV.RMP.HHE. ML:1.7 0.0006615 0.92 AML other m 2016-10-29T23:25:12.00
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