Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 01-10-2019 and time 05:40:53 (Italy) in region 4 km NE Colonna (RM)

A magnitude ML 1.5 earthquake occured in region: 4 km NE Colonna (RM), on

  • 01-10-2019 03:40:53 (UTC)
  • 01-10-2019 05:40:53 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.8640, 12.7690 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
Colonna RM 4 4287 4287
Gallicano nel Lazio RM 5 6334 10621
San Cesareo RM 5 15153 25774
Zagarolo RM 6 17843 43617
Monte Compatri RM 7 11978 55595
Monte Porzio Catone RM 7 8693 64288
Rocca Priora RM 8 11962 76250
Frascati RM 10 22087 98337
Palestrina RM 10 21672 120009
San Gregorio da Sassola RM 11 1619 121628
Castel San Pietro Romano RM 11 902 122530
Poli RM 11 2418 124948
Casape RM 11 744 125692
Tivoli RM 11 56533 182225
Grottaferrata RM 12 20327 202552
Rocca di Papa RM 12 17034 219586
Labico RM 13 6379 225965
Marino RM 14 43026 268991
Cave RM 15 11287 280278
Rocca di Cave RM 15 377 280655
Castel Madama RM 15 7399 288054
Capranica Prenestina RM 15 351 288405
Ciampino RM 15 38412 326817
Guidonia Montecelio RM 16 88673 415490
Valmontone RM 16 15959 431449
Lariano RM 16 13432 444881
Castel Gandolfo RM 16 8997 453878
Nemi RM 17 1943 455821
Pisoniano RM 17 770 456591
Genazzano RM 17 6036 462627
Albano Laziale RM 18 41715 504342
San Polo dei Cavalieri RM 18 2992 507334
Ariccia RM 18 19407 526741
Ciciliano RM 18 1336 528077
Marcellina RM 18 7280 535357
San Vito Romano RM 18 3273 538630
Genzano di Roma RM 19 23970 562600
Artena RM 19 14276 576876
Fonte Nuova RM 19 32562 609438
Sant'Angelo Romano RM 20 5018 614456
Sambuci RM 20 925 615381
Vicovaro RM 20 4019 619400
Velletri RM 20 53303 672703
Cerreto Laziale RM 20 1118 673821

Municipalities with at least 50000 inhabitants

An earthquake occurred to
11 Km S of Tivoli (56533 inhabitants)
16 Km S of Guidonia Montecelio (88673 inhabitants)
20 Km N of Velletri (53303 inhabitants)
24 Km E of Roma (2864731 inhabitants)
31 Km NE of Pomezia (62966 inhabitants)
32 Km NE of Aprilia (73446 inhabitants)
45 Km E of Fiumicino (78395 inhabitants)
45 Km N of Latina (125985 inhabitants)
48 Km N of Anzio (54211 inhabitants)
75 Km SW of L'Aquila (69753 inhabitants)
78 Km S of Terni (111501 inhabitants)
82 Km SE of Viterbo (67173 inhabitants)
85 Km E of Civitavecchia (52991 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 1.5 2019-10-01
03:40:53		 41.8645 12.7688 10 2020-02-28
16:41:53		 Bollettino Sismico Italiano INGV 72956931
Reviewed
Rev100 		ML 1.6 2019-10-01
03:40:53		 41.8703 12.7713 8 2019-10-01
03:51:18		 Sala Sismica INGV-Roma 72939111
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-10-01 03:40:53 ± 0.04
Latitude 41.8645 ± 0.0018
Longitude 12.7688 ± 0.0024
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 72956931

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 246
Semi-minor axis of confidence ellipse (meter) 209
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 150
Circular confidence region, given by single value of horizontal uncertainty (meter) 250.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 52
Number of associated phases, regardless of their use for origin computation 44
Number of defining phases 43
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.72395
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 22
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 72956931
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-10-01 15:48:06

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 72939111
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-10-01 03:51:18
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.POFI.HNE. 2019-10-01T03:41:17.67 0.6 undecidable manual S 101 79.6647 50 0.27 42
IV.LRP.EHZ. 2019-10-01T03:41:15.60 1.0 undecidable manual S 109 71.8725 50 0.3 21
IV.TOLF.HHN. 2019-10-01T03:41:14.10 0.6 undecidable manual S 290 67.1772 50 0.05 45
IV.VVLD.HHZ. 2019-10-01T03:41:14.82 0.3 undecidable manual S 89 70.5738 50 -0.14 66
IV.PTQR.HHZ. 2019-10-01T03:41:10.90 0.3 undecidable manual S 71 55.0005 50 0.1 69
IV.GIUL.HHZ. 2019-10-01T03:41:10.51 0.3 undecidable manual S 130 52.6029 50 0.33 66
IV.FIAM.HNN. 2019-10-01T03:41:10.29 0.6 undecidable manual S 33 53.2023 50 -0.03 47
IV.GUAR.HNN. 2019-10-01T03:41:08.04 0.3 undecidable manual S 100 45.621 50 -0.25 68
IV.SRES.HHN. 2019-10-01T03:41:08.87 0.3 undecidable manual S 333 46.5201 50 0.33 67
IV.LATB.EHZ. 2019-10-01T03:41:07.93 0.3 undecidable manual S 159 44.1225 50 0.03 71
IT.MMP1.HGE. 2019-10-01T03:41:07.94 1.0 undecidable manual S 358 42.7239 50 0.41 22
IV.ARRO.EHZ. 2019-10-01T03:41:07.44 3.0 negative manual P -0.05 0
IV.RM33.HNE. 2019-10-01T03:41:07.11 1.0 undecidable manual P 27 80.364 50 -0.25 21
IV.POFI.HNE. 2019-10-01T03:41:06.98 0.1 undecidable manual P 101 79.6647 50 -0.28 85
IT.CSO1.HGZ. 2019-10-01T03:41:06.09 1.0 undecidable manual S 45 37.1295 50 0.05 24
IV.VVLD.HHZ. 2019-10-01T03:41:05.75 0.1 undecidable manual P 89 70.5738 50 -0.1 89
IV.LRP.EHZ. 2019-10-01T03:41:05.85 0.1 undecidable manual P 109 71.8725 50 -0.2 87
IV.TOLF.HHN. 2019-10-01T03:41:05.76 0.6 undecidable manual P 290 67.1772 50 0.43 42
IV.FIAM.HNN. 2019-10-01T03:41:03.05 1.0 undecidable manual P 33 53.2023 50 -0.12 23
IV.PTQR.HHZ. 2019-10-01T03:41:03.30 0.3 undecidable manual P 71 55.0005 50 -0.15 68
IV.GIUL.HHZ. 2019-10-01T03:41:03.38 0.3 undecidable manual P 130 52.6029 50 0.29 67
IV.LAV9.HNZ. 2019-10-01T03:41:01.55 0.3 undecidable manual S 196 21.4674 115 -0.07 74
IV.LATB.EHZ. 2019-10-01T03:41:01.45 0.1 undecidable manual P 159 44.1225 50 -0.33 89
IT.MMP1.HGE. 2019-10-01T03:41:01.74 0.1 undecidable manual P 358 42.7239 50 0.18 92
IV.GUAR.HNN. 2019-10-01T03:41:01.74 1.0 undecidable manual P 100 45.621 50 -0.26 23
IV.SRES.HHN. 2019-10-01T03:41:01.83 0.3 undecidable manual P 333 46.5201 50 -0.31 67
IV.CERT.HHZ. 2019-10-01T03:41:00.91 0.3 undecidable manual S 62 19.9689 116 -0.21 72
IT.CSO1.HGZ. 2019-10-01T03:41:00.47 0.6 undecidable manual P 45 37.1295 50 -0.23 46
IV.SAMA.HHZ. 2019-10-01T03:41:00.00 0.3 undecidable manual S 238 17.2716 120 -0.32 70
IV.MTCE.HHZ. 2019-10-01T03:41:00.34 0.3 undecidable manual S 353 17.6712 119 -0.1 74
IV.RDP.HHZ. 2019-10-01T03:40:59.14 0.6 undecidable manual S 203 12.4764 128 0.2 49
IV.VIVA.HHN. 2019-10-01T03:40:59.14 0.6 undecidable manual S 180 12.6762 128 0.16 49
IV.MA9.HHN. 2019-10-01T03:40:59.09 0.3 undecidable manual S 221 13.875 125 -0.23 72
IV.RCAV.EHZ. 2019-10-01T03:40:59.74 0.3 undecidable manual S 97 14.6742 124 0.19 73
IV.LAV9.HNZ. 2019-10-01T03:40:58.03 0.3 undecidable manual P 196 21.4674 115 -0.12 73
IV.SAMA.HHZ. 2019-10-01T03:40:57.32 0.1 undecidable manual P 238 17.2716 120 -0.08 99
IV.MTCE.HHZ. 2019-10-01T03:40:57.48 0.1 positive manual P 353 17.6712 119 0.01 100
IV.RMP.HHZ. 2019-10-01T03:40:57.75 0.3 undecidable manual S 223 8.0808 141 -0.09 75
IV.RCAV.EHZ. 2019-10-01T03:40:57.22 0.1 undecidable manual P 97 14.6742 124 0.27 95
IV.CERT.HHZ. 2019-10-01T03:40:57.84 0.1 positive manual P 62 19.9689 116 -0.02 100
IV.VIVA.HHN. 2019-10-01T03:40:56.76 0.1 undecidable manual P 180 12.6762 128 0.13 98
IV.MA9.HHN. 2019-10-01T03:40:56.84 0.3 undecidable manual P 221 13.875 125 0.02 75
IV.RMP.HHZ. 2019-10-01T03:40:56.10 0.1 positive manual P 223 8.0808 141 0.14 99
IV.RDP.HHZ. 2019-10-01T03:40:56.92 0.1 undecidable manual P 203 12.4764 128 0.32 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RMP.HHE. ML:2.1 0.001726816 0.16 AML other m 2019-10-01T03:40:57.83
IV.RMP.HHN. ML:2.1 0.0017847225 0.1392 AML other m 2019-10-01T03:40:58.45
IV.RCAV.EHN. ML:1.6 0.0003746712 0.2016 AML other m 2019-10-01T03:41:00.31
IV.MTCE.HHN. ML:1.6 0.00030794074999999997 0.44 AML other m 2019-10-01T03:41:00.74
IV.RCAV.EHE. ML:1.5 0.00030502645 0.1408 AML other m 2019-10-01T03:41:00.69
IV.MTCE.HHE. ML:1.5 0.0002818479 1.76 AML other m 2019-10-01T03:41:00.08
IV.CERT.HHN. ML:1.4 0.00018338575 0.24 AML other m 2019-10-01T03:41:01.77
IV.CERT.HHE. ML:1.5 0.0002504132 1.6416 AML other m 2019-10-01T03:41:02.93
IV.RDP.HHN. ML:2.0 0.0012905685 0.28 AML other m 2019-10-01T03:41:00.68
IV.RDP.HHE. ML:1.9 0.0009946721499999999 0.4208 AML other m 2019-10-01T03:40:59.77
IV.GIUL.HHN. ML:1.2 0.000035947075000000005 0.2384 AML other m 2019-10-01T03:41:12.42
IV.GIUL.HHE. ML:1.0 0.00002556853 0.1808 AML other m 2019-10-01T03:41:12.18
IV.LRP.EHN. ML:0.8 0.000010569405 0.2192 AML other m 2019-10-01T03:41:16.62
IV.LRP.EHE. ML:1.2 0.000027089064 0.2608 AML other m 2019-10-01T03:41:17.03
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