Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.4 on date 14-01-2017 and time 03:01:02 (UTC) in region 2 km E Ariccia (RM)

A magnitude ML 2.4 earthquake occured in region: 2 km E Ariccia (RM), on

  • 14-01-2017 03:01:02 (UTC)
  • 14-01-2017 04:01:02 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.7280, 12.6880 at 10 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
Ariccia RM 2 19407 19407
Genzano di Roma RM 2 23970 43377
Albano Laziale RM 2 41715 85092
Nemi RM 2 1943 87035
Castel Gandolfo RM 4 8997 96032
Rocca di Papa RM 4 17034 113066
Marino RM 5 43026 156092
Lanuvio RM 5 13632 169724
Grottaferrata RM 7 20327 190051
Velletri RM 9 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
Pomezia RM 17 62966 505770
Zagarolo RM 17 17843 523613
Ardea RM 18 49183 572796
Labico RM 18 6379 579175
Cisterna di Latina LT 19 36868 616043
Artena RM 19 14276 630319
Gallicano nel Lazio RM 20 6334 636653
Valmontone RM 20 15959 652612

Municipalities with at least 50000 inhabitants

An earthquake occurred to
9 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)
84 Km E of Civitavecchia (52991 inhabitants)
91 Km SE of Viterbo (67173 inhabitants)
91 Km SW of L'Aquila (69753 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 2.4 2017-01-14
03:01:02		 41.7277 12.6878 10 2018-01-10
09:44:27		 Bollettino Sismico Italiano INGV 39131951
Reviewed
Rev100 		ML 2.4 2017-01-14
03:01:03		 41.7298 12.6832 10 2017-01-14
03:12:36		 Sala Sismica INGV-Roma 39021951
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-01-14 03:01:02 ± 0.09
Latitude 41.7277 ± 0.0054
Longitude 12.6878 ± 0.0084
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 39131951

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 723
Semi-minor axis of confidence ellipse (meter) 502
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 243
Circular confidence region, given by single value of horizontal uncertainty (meter) 720.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 136
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.45596
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 11
Magnitudes information

ML:2.4

Field Value
Value 2.4
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 39131951
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2017-01-16 11:15:34

ML:2.4

Field Value
Value 2.4
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 39021951
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-01-14 03:08:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GIUL.HHZ. 2017-01-14T03:01:19.45 0.6 undecidable manual S 112 50.616 50 0.37 43
IV.MTCE.HHN. 2017-01-14T03:01:14.50 0.6 undecidable manual S 8 33.0447 50 0.1 47
IV.LATB.EHZ. 2017-01-14T03:01:14.40 0.6 undecidable manual S 139 34.5432 50 -0.39 44
IV.CERT.HHZ. 2017-01-14T03:01:14.65 0.3 undecidable manual S 45 34.5432 50 -0.15 70
IV.RCAV.EHZ. 2017-01-14T03:01:12.03 0.3 undecidable manual S 58 25.0527 50 -0.24 70
IV.GIUL.HHZ. 2017-01-14T03:01:12.26 0.1 positive manual P 112 50.616 50 0 93
IV.ROM9.HNE. 2017-01-14T03:01:10.59 0.6 undecidable manual S 308 18.0708 120 0.41 45
IV.LATB.EHZ. 2017-01-14T03:01:09.62 0.1 undecidable manual P 139 34.5432 50 -0.16 93
IV.CERT.HHZ. 2017-01-14T03:01:09.71 0.1 positive manual P 45 34.5432 50 -0.08 95
IV.MTCE.HHN. 2017-01-14T03:01:09.57 0.1 undecidable manual P 8 33.0447 50 0.01 96
IV.RCAV.EHZ. 2017-01-14T03:01:08.44 0.1 positive manual P 58 25.0527 50 0.11 96
IV.VIVA.HHZ. 2017-01-14T03:01:07.56 0.3 undecidable manual S 70 7.2927 145 0.23 72
IV.ROM9.HNE. 2017-01-14T03:01:07.55 0.1 undecidable manual P 308 18.0708 120 0.42 91
IV.SAMA.HHZ. 2017-01-14T03:01:07.53 0.3 undecidable manual S 307 9.879 136 -0.37 70
IV.RMP.HHZ. 2017-01-14T03:01:07.68 0.3 undecidable manual S 7 9.3795 138 -0.1 74
IV.RDP.HHZ. 2017-01-14T03:01:06.28 3.0 undecidable manual S -0.42 0
IV.MA9.HHZ. 2017-01-14T03:01:06.11 0.3 undecidable manual S 333 5.2947 153 -0.86 59
IV.LAV9.HNZ. 2017-01-14T03:01:06.86 0.3 undecidable manual S 171 5.5944 151 -0.16 73
IV.MA9.HHZ. 2017-01-14T03:01:05.16 0.1 positive manual P 333 5.2947 153 -0.11 99
IV.RMP.HHZ. 2017-01-14T03:01:05.96 0.1 positive manual P 7 9.3795 138 0.22 96
IV.LAV9.HNZ. 2017-01-14T03:01:05.52 0.1 positive manual P 171 5.5944 151 0.22 97
IV.VIVA.HHZ. 2017-01-14T03:01:05.76 0.1 positive manual P 70 7.2927 145 0.28 95
IV.RDP.HHZ. 2017-01-14T03:01:05.15 3.0 negative manual P -0.01 0
IV.SAMA.HHZ. 2017-01-14T03:01:05.79 0.1 positive manual P 307 9.879 136 -0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LAV9.HHE. ML:2.6 0.006625 0.2 AML other m 2017-01-14T03:01:08.86
IV.LAV9.HNE. ML:2.6 0.006245 0.2 AML other m 2017-01-14T03:01:08.87
IV.LAV9.HHN. ML:2.5 0.0051600000000000005 0.2 AML other m 2017-01-14T03:01:10.34
IV.LAV9.HNN. ML:2.5 0.004865 0.2 AML other m 2017-01-14T03:01:10.35
IV.MA9.HHN. ML:2.4 0.00383 0.46 AML other m 2017-01-14T03:01:06.61
IV.MA9.HHE. ML:2.3 0.00348 1.08 AML other m 2017-01-14T03:01:07.38
IV.RDP.HHN. ML:2.7 0.00811 0.58 AML other m 2017-01-14T03:01:07.65
IV.RDP.HHE. ML:2.4 0.004810000000000001 0.44 AML other m 2017-01-14T03:01:09.12
IV.RMP.HHN. ML:2.1 0.0018250000000000002 0.3 AML other m 2017-01-14T03:01:08.82
IV.RMP.HHE. ML:2.2 0.00213 0.32 AML other m 2017-01-14T03:01:09.45
IV.SAMA.HHE. ML:2.0 0.00143 0.8 AML other m 2017-01-14T03:01:08.90
IV.SAMA.HHN. ML:1.9 0.0010055 1.14 AML other m 2017-01-14T03:01:09.69
IV.VIVA.HHN. ML:2.6 0.006719999999999999 1.82 AML other m 2017-01-14T03:01:08.94
IV.VIVA.HHE. ML:2.7 0.007895 0.96 AML other m 2017-01-14T03:01:08.10
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