Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.3 on date 29-08-2020 and time 12:59:03 (Italy) in region 4 km NW Lariano (RM)

A magnitude ML 2.3 earthquake occured in region: 4 km NW Lariano (RM), on

  • 29-08-2020 10:59:03 (UTC)
  • 29-08-2020 12:59:03 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.7520, 12.8030 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
Lariano RM 4 13432 13432
Rocca Priora RM 6 11962 25394
Velletri RM 7 53303 78697
Rocca di Papa RM 8 17034 95731
San Cesareo RM 8 15153 110884
Nemi RM 8 1943 112827
Labico RM 8 6379 119206
Monte Compatri RM 8 11978 131184
Artena RM 10 14276 145460
Valmontone RM 10 15959 161419
Monte Porzio Catone RM 10 8693 170112
Colonna RM 10 4287 174399
Zagarolo RM 10 17843 192242
Genzano di Roma RM 10 23970 216212
Ariccia RM 11 19407 235619
Lanuvio RM 11 13632 249251
Frascati RM 12 22087 271338
Grottaferrata RM 12 20327 291665
Marino RM 12 43026 334691
Albano Laziale RM 12 41715 376406
Palestrina RM 12 21672 398078
Castel Gandolfo RM 13 8997 407075
Rocca Massima LT 13 1136 408211
Cave RM 13 11287 419498
Castel San Pietro Romano RM 13 902 420400
Gallicano nel Lazio RM 13 6334 426734
Cori LT 15 11065 437799
Rocca di Cave RM 16 377 438176
Genazzano RM 17 6036 444212
Poli RM 17 2418 446630
Colleferro RM 17 21595 468225
Ciampino RM 18 38412 506637
Capranica Prenestina RM 18 351 506988
Cisterna di Latina LT 18 36868 543856
Casape RM 19 744 544600
San Gregorio da Sassola RM 20 1619 546219
Segni RM 20 9159 555378

Municipalities with at least 50000 inhabitants

An earthquake occurred to
7 Km N of Velletri (53303 inhabitants)
22 Km NE of Aprilia (73446 inhabitants)
24 Km S of Tivoli (56533 inhabitants)
27 Km E of Pomezia (62966 inhabitants)
28 Km S of Guidonia Montecelio (88673 inhabitants)
31 Km SE of Roma (2864731 inhabitants)
33 Km N of Latina (125985 inhabitants)
37 Km NE of Anzio (54211 inhabitants)
47 Km E of Fiumicino (78395 inhabitants)
83 Km SW of L'Aquila (69753 inhabitants)
91 Km S of Terni (111501 inhabitants)
92 Km E of Civitavecchia (52991 inhabitants)
94 Km SE 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
Bulletin
Rev1000 		ML 2.3 2020-08-29
10:59:03		 41.7517 12.8027 10 2020-11-19
12:37:00		 Bollettino Sismico Italiano INGV 82740331
Reviewed
Rev100 		ML 2.3 2020-08-29
10:59:03		 41.7512 12.7992 10 2020-08-29
11:07:35		 Sala Sismica INGV-Roma 82437601
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-08-29 10:59:03 ± 0.05
Latitude 41.7517 ± 0.0036
Longitude 12.8027 ± 0.0048
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 82740331

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 435
Semi-minor axis of confidence ellipse (meter) 323
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 209
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) 71
Number of associated phases, regardless of their use for origin computation 33
Number of defining phases 33
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.02428
Epicentral distance of station farthest from the epicenter (degree) 0.92001
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 21
Magnitudes information

ML:2.3

Field Value
Value 2.3
Uncertainty 0.4
Num. used stations 39
Type of magnitude ML
Reference to an origin 82740331
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-11-15 01:51:18

ML:2.3

Field Value
Value 2.3
Uncertainty 0.4
Num. used stations 36
Type of magnitude ML
Reference to an origin 82437601
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-08-29 11:07:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CERA.HHZ. 2020-08-29T10:59:20.43 0.3 undecidable manual P 99 102.12 50 -0.07 64
IV.INTR.HHZ. 2020-08-29T10:59:19.19 0.3 undecidable manual P 72 95.4378 50 -0.27 62
IV.GUAR.HHZ. 2020-08-29T10:59:17.24 0.6 undecidable manual S 83 42.4242 50 -0.01 48
IV.GIUL.HHZ. 2020-08-29T10:59:17.62 0.6 undecidable manual S 120 43.1235 50 0.17 47
IV.POFI.HHZ. 2020-08-29T10:59:16.27 0.3 undecidable manual P 93 75.369 50 -0.1 67
IV.VVLD.HHZ. 2020-08-29T10:59:15.23 0.3 undecidable manual P 79 69.0753 50 -0.17 67
IT.RMVT.HGE. 2020-08-29T10:59:15.37 0.1 undecidable manual S 311 34.6431 50 0.21 94
IV.LATB.EHZ. 2020-08-29T10:59:14.05 0.3 undecidable manual S 155 31.5462 50 -0.29 70
IV.SRES.HHZ. 2020-08-29T10:59:14.54 0.6 undecidable manual P 336 58.9965 50 0.7 39
IV.FIAM.HHZ. 2020-08-29T10:59:14.38 0.3 undecidable manual P 24 62.8926 50 -0.06 69
IV.LRP.EHZ. 2020-08-29T10:59:14.90 0.3 undecidable manual P 100 65.9895 50 -0.02 69
IV.MTCE.HHZ. 2020-08-29T10:59:13.85 0.3 undecidable manual S 351 30.4473 50 -0.21 71
IV.PTQR.HHZ. 2020-08-29T10:59:13.73 0.6 undecidable manual P 59 57.7977 50 0.08 46
IV.GIUL.HHZ. 2020-08-29T10:59:11.31 0.1 negative manual P 120 43.1235 50 -0.1 95
IV.GUAR.HHZ. 2020-08-29T10:59:11.16 0.1 negative manual P 83 42.4242 50 -0.13 94
IT.RMMM.HGE. 2020-08-29T10:59:10.47 0.3 undecidable manual P 303 34.6431 50 0.38 68
IT.RMVT.HGE. 2020-08-29T10:59:10.24 0.1 undecidable manual P 311 34.6431 50 0.15 95
IV.MTCE.HHZ. 2020-08-29T10:59:09.30 0.3 undecidable manual P 351 30.4473 50 -0.15 72
IV.RCAV.EHZ. 2020-08-29T10:59:09.84 0.1 undecidable manual S 48 15.873 121 0.24 96
IV.LATB.EHZ. 2020-08-29T10:59:09.45 0.1 positive manual P 155 31.5462 50 -0.16 95
IV.SAMA.EHZ. 2020-08-29T10:59:09.81 0.1 undecidable manual S 280 17.6712 119 -0.34 94
IV.MA9.HHZ. 2020-08-29T10:59:08.04 0.1 undecidable manual S 280 12.0768 129 -0.47 92
IV.LAV9.HHZ. 2020-08-29T10:59:08.89 0.3 undecidable manual S 226 11.877 129 0.43 70
IV.SAMA.EHZ. 2020-08-29T10:59:07.15 0.1 positive manual P 280 17.6712 119 -0.04 100
IV.RDP.HHZ. 2020-08-29T10:59:07.37 0.3 undecidable manual S 277 7.6812 141 -0.07 76
IV.RMP.HHZ. 2020-08-29T10:59:07.74 0.1 undecidable manual S 310 10.4784 133 -0.36 95
IV.RMP.HHZ. 2020-08-29T10:59:06.18 0.1 negative manual P 310 10.4784 133 0.17 99
IV.VIVA.HHZ. 2020-08-29T10:59:06.40 0.1 undecidable manual S 266 2.6973 164 -0.23 99
IV.MA9.HHZ. 2020-08-29T10:59:06.41 0.1 undecidable manual P 280 12.0768 129 0.16 98
IV.LAV9.HHZ. 2020-08-29T10:59:06.72 0.3 undecidable manual P 226 11.877 129 0.5 69
IV.RCAV.EHZ. 2020-08-29T10:59:06.99 0.1 undecidable manual P 48 15.873 121 0.11 99
IV.VIVA.HHZ. 2020-08-29T10:59:05.33 0.1 negative manual P 266 2.6973 164 0.17 100
IV.RDP.HHZ. 2020-08-29T10:59:05.91 0.1 negative manual P 277 7.6812 141 0.28 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.VIVA.HHN. ML:3.7 0.088332825 0.16 AML other m 2020-08-29T10:59:06.48
IV.VIVA.HHE. ML:3.4 0.05260926 0.1152 AML other m 2020-08-29T10:59:06.55
IV.RDP.HHE. ML:3.4 0.033505879999999995 0.3392 AML other m 2020-08-29T10:59:08.14
IV.RDP.HHN. ML:3.4 0.036464095 0.2048 AML other m 2020-08-29T10:59:08.02
IV.RMP.HHE. ML:3.2 0.02053829 0.1408 AML other m 2020-08-29T10:59:08.08
IV.LAV9.HNN. ML:2.9 0.009503936 0.2368 AML other m 2020-08-29T10:59:09.85
IV.LAV9.HHN. ML:2.9 0.0098959635 0.224 AML other m 2020-08-29T10:59:09.84
IV.RMP.HHN. ML:3.2 0.021706635 0.1024 AML other m 2020-08-29T10:59:09.85
IV.RCAV.EHE. ML:2.6 0.003530746 0.3008 AML other m 2020-08-29T10:59:10.33
IV.RCAV.EHN. ML:2.6 0.003586293 0.224 AML other m 2020-08-29T10:59:11.11
IV.LAV9.HHE. ML:3.0 0.01299767 0.2176 AML other m 2020-08-29T10:59:14.13
IV.LAV9.HNE. ML:3.0 0.0123955 0.224 AML other m 2020-08-29T10:59:14.14
IV.MTCE.HHE. ML:1.9 0.00034534965 0.3968 AML other m 2020-08-29T10:59:14.46
IV.LATB.EHN. ML:1.3 0.00010112195000000001 0.1792 AML other m 2020-08-29T10:59:14.64
IV.MTCE.HHN. ML:1.9 0.0003548304 0.3968 AML other m 2020-08-29T10:59:14.55
IV.LATB.EHE. ML:1.3 0.0000848695 0.256 AML other m 2020-08-29T10:59:15.36
IV.GIUL.HHE. ML:2.4 0.0007806697 0.4608 AML other m 2020-08-29T10:59:18.59
IV.GIUL.HHN. ML:2.2 0.0005042478 0.16 AML other m 2020-08-29T10:59:19.61
IV.GUAR.HHE. ML:2.3 0.0006232322999999999 0.2176 AML other m 2020-08-29T10:59:19.64
IV.GUAR.HHN. ML:2.3 0.00069765085 0.3392 AML other m 2020-08-29T10:59:21.49
IV.PTQR.HHE. ML:2.5 0.00066300385 0.2816 AML other m 2020-08-29T10:59:22.74
IV.PTQR.HHN. ML:2.2 0.00035877075000000005 0.48 AML other m 2020-08-29T10:59:23.07
IV.SRES.HHE. ML:1.8 0.0001225858 0.1792 AML other m 2020-08-29T10:59:23.69
IV.VVLD.HNN. ML:2.5 0.00048357344999999994 0.4416 AML other m 2020-08-29T10:59:25.39
IV.VVLD.HHN. ML:2.5 0.0004930499500000001 0.4416 AML other m 2020-08-29T10:59:25.39
IV.VVLD.HHE. ML:2.7 0.0009082179999999999 0.3584 AML other m 2020-08-29T10:59:25.30
IV.VVLD.HNE. ML:2.7 0.00085198185 0.3648 AML other m 2020-08-29T10:59:25.31
IV.LRP.EHN. ML:1.7 0.00009110294499999999 0.256 AML other m 2020-08-29T10:59:26.37
IV.LRP.EHE. ML:2.2 0.0003072597 0.2368 AML other m 2020-08-29T10:59:26.50
IV.SRES.HHN. ML:1.8 0.0001303839 0.3392 AML other m 2020-08-29T10:59:26.96
IV.POFI.HNN. ML:2.0 0.000151200595 0.384 AML other m 2020-08-29T10:59:27.26
IV.POFI.HHN. ML:1.9 0.00013162763999999998 0.3392 AML other m 2020-08-29T10:59:28.52
IV.POFI.HHE. ML:2.0 0.00015011185 0.3968 AML other m 2020-08-29T10:59:29.61
IV.POFI.HNE. ML:2.2 0.000216948185 0.4032 AML other m 2020-08-29T10:59:29.62
IV.INTR.HHN. ML:2.2 0.00015889635 0.416 AML other m 2020-08-29T10:59:38.08
IV.INTR.HHE. ML:2.3 0.00023497085 0.4992 AML other m 2020-08-29T10:59:39.02
IV.CERA.HHN. ML:2.0 0.00010055922 0.4992 AML other m 2020-08-29T10:59:39.92
IV.CERA.HNN. ML:2.1 0.00011550702000000002 0.5248 AML other m 2020-08-29T10:59:39.67
IV.CERA.HHE. ML:2.1 0.00010825544500000001 0.384 AML other m 2020-08-29T10:59:42.64
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