Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.2 on date 30-07-2018 and time 08:00:36 (Italy) in region 3 km SW Genzano di Roma (RM)

A magnitude ML 2.2 earthquake occured in region: 3 km SW Genzano di Roma (RM), on

  • 30-07-2018 06:00:36 (UTC)
  • 30-07-2018 08:00:36 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.6920, 12.6700 at 12 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
Genzano di Roma RM 3 23970 23970
Lanuvio RM 3 13632 37602
Ariccia RM 3 19407 57009
Albano Laziale RM 4 41715 98724
Nemi RM 5 1943 100667
Castel Gandolfo RM 6 8997 109664
Rocca di Papa RM 9 17034 126698
Marino RM 9 43026 169724
Velletri RM 9 53303 223027
Grottaferrata RM 11 20327 243354
Aprilia LT 11 73446 316800
Frascati RM 13 22087 338887
Ciampino RM 14 38412 377299
Ardea RM 14 49183 426482
Rocca Priora RM 14 11962 438444
Pomezia RM 14 62966 501410
Lariano RM 14 13432 514842
Monte Compatri RM 14 11978 526820
Monte Porzio Catone RM 14 8693 535513
Cisterna di Latina LT 17 36868 572381
Colonna RM 17 4287 576668
San Cesareo RM 18 15153 591821

Municipalities with at least 50000 inhabitants

An earthquake occurred to
9 Km W of Velletri (53303 inhabitants)
11 Km N of Aprilia (73446 inhabitants)
14 Km E of Pomezia (62966 inhabitants)
27 Km SE of Roma (2864731 inhabitants)
27 Km N of Anzio (54211 inhabitants)
32 Km NW of Latina (125985 inhabitants)
32 Km SW of Tivoli (56533 inhabitants)
35 Km S of Guidonia Montecelio (88673 inhabitants)
37 Km E of Fiumicino (78395 inhabitants)
85 Km SE of Civitavecchia (52991 inhabitants)
93 Km SE of Viterbo (67173 inhabitants)
95 Km SW of L'Aquila (69753 inhabitants)
97 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 2.2 2018-07-30
06:00:36		 41.692 12.6703 12 2019-04-24
14:50:51		 Bollettino Sismico Italiano INGV 59444231
Reviewed
Rev100 		ML 2.0 2018-07-30
06:00:37		 41.6975 12.7055 11 2018-07-30
06:13:26		 Sala Sismica INGV-Roma 59190471
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-07-30 06:00:36 ± 0.09
Latitude 41.6920 ± 0.0036
Longitude 12.6703 ± 0.0060
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 59444231

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 433
Semi-minor axis of confidence ellipse (meter) 345
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 29
Circular confidence region, given by single value of horizontal uncertainty (meter) 430.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 175
Number of associated phases, regardless of their use for origin computation 42
Number of defining phases 34
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.77791
Number of stations at which the event was observed 25
Number of stations from which data was used for origin computation 17
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 59190471
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-07-30 06:13:26

ML:2.2

Field Value
Value 2.2
Uncertainty 0.5
Num. used stations 22
Type of magnitude ML
Reference to an origin 59444231
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-08-06 14:51:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
MN.BLY.HHZ. 2018-07-30T06:02:33.71 3.0 undecidable manual Sn -2.5 0
IV.EUCT.HNZ. 2018-07-30T06:02:31.49 3.0 undecidable manual Sn -0.32 0
IV.ILLI.HHZ. 2018-07-30T06:02:14.56 3.0 undecidable manual Sn 1.16 0
IV.BDI.HHZ. 2018-07-30T06:02:05.60 3.0 undecidable manual Sg 11.19 0
IV.IACL.HHZ. 2018-07-30T06:02:05.42 3.0 undecidable manual Sn -1.11 0
IV.SOI.EHZ. 2018-07-30T06:01:58.60 3.0 undecidable manual Pg 17.34 0
IV.DGI.HHZ. 2018-07-30T06:01:55.16 3.0 undecidable manual Sg 6.39 0
OB.GAVE.EHZ. 2018-07-30T06:01:11.94 3.0 undecidable manual S 0.8 0
IV.POFI.HNE. 2018-07-30T06:01:02.42 0.6 undecidable manual S 88 86.3469 91 0.25 42
IV.VVLD.HHZ. 2018-07-30T06:01:01.34 0.3 undecidable manual S 76 81.252 91 0.52 59
IV.LRP.EHZ. 2018-07-30T06:00:59.53 1.0 undecidable manual S 93 76.0683 91 0.09 22
IV.PTQR.HHZ. 2018-07-30T06:00:58.28 0.6 undecidable manual S 59 70.5738 91 0.32 42
IV.TOLF.HHN. 2018-07-30T06:00:57.49 0.6 undecidable manual S 307 69.0753 91 -0.07 44
IV.SRES.HHN. 2018-07-30T06:00:55.44 1.0 undecidable manual S 348 61.8936 91 -0.21 22
IV.GIUL.HHZ. 2018-07-30T06:00:52.81 0.6 undecidable manual S 107 50.7159 91 0.16 45
IV.VVLD.HHZ. 2018-07-30T06:00:50.44 0.1 positive manual P 76 81.252 91 -0.17 86
IV.POFI.HNE. 2018-07-30T06:00:50.94 0.1 undecidable manual P 88 86.3469 91 -0.45 80
IV.MTCE.HHZ. 2018-07-30T06:00:49.22 0.3 undecidable manual S 9 37.1295 92 0.17 70
IV.LRP.EHZ. 2018-07-30T06:00:49.85 0.1 undecidable manual P 93 76.0683 91 0.04 89
IV.CERT.HHZ. 2018-07-30T06:00:49.27 0.3 undecidable manual S 42 38.4282 92 -0.12 70
IV.TOLF.HHN. 2018-07-30T06:00:48.96 0.1 undecidable manual P 307 69.0753 91 0.23 87
IV.PTQR.HHZ. 2018-07-30T06:00:48.93 0.1 undecidable manual P 59 70.5738 91 -0.03 90
IV.LATB.EHZ. 2018-07-30T06:00:47.42 0.3 undecidable manual S 132 32.745 93 -0.44 66
IV.SRES.HHN. 2018-07-30T06:00:47.61 0.3 undecidable manual P 348 61.8936 91 -0.02 69
IV.RCAV.EHZ. 2018-07-30T06:00:46.36 0.3 undecidable manual S 53 28.5492 94 -0.39 68
IV.GIUL.HHZ. 2018-07-30T06:00:45.72 0.1 undecidable manual P 107 50.7159 91 -0.18 91
IV.MTCE.HHZ. 2018-07-30T06:00:44.03 0.3 undecidable manual P 9 37.1295 92 0.21 69
IV.CERT.HHZ. 2018-07-30T06:00:44.08 0.1 undecidable manual P 42 38.4282 92 0.07 95
IV.LATB.EHZ. 2018-07-30T06:00:43.00 0.1 undecidable manual P 132 32.745 93 -0.13 94
IV.RMP.HHZ. 2018-07-30T06:00:42.76 0.3 undecidable manual S 11 13.4754 113 -0.04 75
IV.RCAV.EHZ. 2018-07-30T06:00:42.62 0.1 undecidable manual P 53 28.5492 94 0.13 95
IV.SAMA.HHZ. 2018-07-30T06:00:41.86 0.3 undecidable manual S 327 11.7771 119 -0.52 67
IV.MA9.HHN. 2018-07-30T06:00:41.30 0.3 undecidable manual S 354 8.6802 133 -0.41 69
IV.LAV9.HNZ. 2018-07-30T06:00:41.12 0.3 undecidable manual S 124 2.7972 163 0.24 73
IV.RDP.HHZ. 2018-07-30T06:00:41.54 0.3 undecidable manual S 24 8.2806 134 -0.1 74
IV.VIVA.HHZ. 2018-07-30T06:00:41.91 0.3 undecidable manual S 52 10.4784 124 -0.19 73
IV.RMP.HHZ. 2018-07-30T06:00:40.48 0.1 negative manual P 11 13.4754 113 0.28 95
IV.RDP.HHZ. 2018-07-30T06:00:39.79 0.1 negative manual P 24 8.2806 134 0.25 96
IV.VIVA.HHZ. 2018-07-30T06:00:39.92 0.1 undecidable manual P 52 10.4784 124 0.12 98
IV.SAMA.HHZ. 2018-07-30T06:00:39.89 0.1 undecidable manual P 327 11.7771 119 -0.08 99
IV.MA9.HHN. 2018-07-30T06:00:39.64 0.1 negative manual P 354 8.6802 133 0.06 100
IV.LAV9.HNZ. 2018-07-30T06:00:39.47 0.1 positive manual P 124 2.7972 163 0.37 94
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LRP.EHE. ML:2.0 0.0001625 0.22 AML other m 2018-07-30T06:01:01.89
IV.RDP.HHN. ML:2.8 0.008475 0.3 AML other m 2018-07-30T06:00:42.22
IV.LAV9.HHN. ML:3.2 0.0217 1.78 AML other m 2018-07-30T06:00:43.06
IV.LAV9.HNN. ML:3.1 0.020300000000000002 1.76 AML other m 2018-07-30T06:00:43.07
IV.RMP.HHN. ML:2.7 0.005345 0.4 AML other m 2018-07-30T06:00:43.06
IV.RMP.HHE. ML:2.3 0.0020299999999999997 0.82 AML other m 2018-07-30T06:00:43.41
IV.LAV9.HHE. ML:3.1 0.02025 0.82 AML other m 2018-07-30T06:00:43.00
IV.LAV9.HNE. ML:3.1 0.019100000000000002 0.82 AML other m 2018-07-30T06:00:43.01
IV.RCAV.EHN. ML:1.9 0.0004 0.22 AML other m 2018-07-30T06:00:48.65
IV.RCAV.EHE. ML:1.7 0.0002635 0.26 AML other m 2018-07-30T06:00:49.44
IV.CERT.HHN. ML:1.7 0.00016999999999999999 1.02 AML other m 2018-07-30T06:00:51.19
IV.CERT.HHE. ML:1.7 0.000192 0.3 AML other m 2018-07-30T06:00:54.20
IV.GIUL.HHN. ML:1.9 0.0002165 0.5 AML other m 2018-07-30T06:00:54.41
IV.GIUL.HHE. ML:2.1 0.000294 0.5 AML other m 2018-07-30T06:00:54.24
IV.LRP.EHN. ML:1.8 0.00009900000000000001 1.26 AML other m 2018-07-30T06:01:03.72
OB.GAVE.EHN. ML:2.1 0.00009759999999999999 0.36 AML other m 2018-07-30T06:01:13.57
OB.GAVE.EHE. ML:2.0 0.0000823 1.02 AML other m 2018-07-30T06:01:15.02
IV.RDP.HHE. ML:2.9 0.009405 0.38 AML other m 2018-07-30T06:00:41.94
IV.VIVA.HHN. ML:3.0 0.010158794 0.0224 AML other m 2018-07-30T06:00:43.79
IV.VIVA.HHE. ML:3.0 0.010342252500000001 0.2208 AML other m 2018-07-30T06:00:43.24
IV.LATB.EHN. ML:0.8 0.00002898226 0.2592 AML other m 2018-07-30T06:00:48.36
IV.LATB.EHE. ML:1.1 0.000049897665 0.1792 AML other m 2018-07-30T06:00:48.23
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