Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.4 on date 28-08-2020 and time 14:27:54 (Italy) in region 3 km NW Lariano (RM)

A magnitude ML 2.4 earthquake occured in region: 3 km NW Lariano (RM), on

  • 28-08-2020 12:27:54 (UTC)
  • 28-08-2020 14:27:54 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.7500, 12.8110 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 3 13432 13432
Rocca Priora RM 6 11962 25394
Labico RM 8 6379 31773
Velletri RM 8 53303 85076
San Cesareo RM 8 15153 100229
Rocca di Papa RM 9 17034 117263
Nemi RM 9 1943 119206
Artena RM 9 14276 133482
Monte Compatri RM 9 11978 145460
Valmontone RM 10 15959 161419
Zagarolo RM 10 17843 179262
Colonna RM 11 4287 183549
Monte Porzio Catone RM 11 8693 192242
Genzano di Roma RM 11 23970 216212
Lanuvio RM 12 13632 229844
Palestrina RM 12 21672 251516
Ariccia RM 12 19407 270923
Rocca Massima LT 12 1136 272059
Frascati RM 12 22087 294146
Grottaferrata RM 13 20327 314473
Cave RM 13 11287 325760
Albano Laziale RM 13 41715 367475
Marino RM 13 43026 410501
Castel San Pietro Romano RM 13 902 411403
Castel Gandolfo RM 13 8997 420400
Gallicano nel Lazio RM 14 6334 426734
Cori LT 15 11065 437799
Rocca di Cave RM 16 377 438176
Genazzano RM 16 6036 444212
Colleferro RM 16 21595 465807
Poli RM 17 2418 468225
Capranica Prenestina RM 17 351 468576
Cisterna di Latina LT 18 36868 505444
Ciampino RM 18 38412 543856
Casape RM 19 744 544600
Segni RM 19 9159 553759
San Gregorio da Sassola RM 20 1619 555378

Municipalities with at least 50000 inhabitants

An earthquake occurred to
8 Km NE 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)
29 Km S of Guidonia Montecelio (88673 inhabitants)
31 Km SE of Roma (2864731 inhabitants)
32 Km N of Latina (125985 inhabitants)
37 Km NE of Anzio (54211 inhabitants)
48 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 2.4 2020-08-28
12:27:54		 41.7502 12.8108 10 2020-11-19
12:37:04		 Bollettino Sismico Italiano INGV 83842221
Reviewed
Rev100 		ML 2.4 2020-08-28
12:27:54		 41.7543 12.8012 10 2020-08-28
12:41:30		 Sala Sismica INGV-Roma 82407861
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-08-28 12:27:54 ± 0.06
Latitude 41.7502 ± 0.0054
Longitude 12.8108 ± 0.0060
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 83842221

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 546
Semi-minor axis of confidence ellipse (meter) 437
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 218
Circular confidence region, given by single value of horizontal uncertainty (meter) 550.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 73
Number of associated phases, regardless of their use for origin computation 52
Number of defining phases 50
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.32
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.91371
Number of stations at which the event was observed 32
Number of stations from which data was used for origin computation 30
Magnitudes information

ML:2.4

Field Value
Value 2.4
Uncertainty 0.4
Num. used stations 42
Type of magnitude ML
Reference to an origin 82407861
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-08-28 12:41:30

ML:2.4

Field Value
Value 2.4
Uncertainty 0.4
Num. used stations 51
Type of magnitude ML
Reference to an origin 83842221
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-11-17 02:47:40
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CMPR.HHZ. 2020-08-28T12:29:03.70 3.0 undecidable manual Sn 1.38 0
IV.NARO.HHZ. 2020-08-28T12:28:25.30 3.0 positive manual Pn -0.29 0
IV.POFI.HHZ. 2020-08-28T12:28:18.64 0.6 undecidable manual S 92 74.6697 50 1.08 31
IV.LIK.EHN.01 2020-08-28T12:28:17.53 0.6 undecidable manual S 114 67.9764 50 1.75 21
IV.VVLD.HHZ. 2020-08-28T12:28:16.31 0.6 undecidable manual S 79 68.4759 50 0.41 42
IV.PTQR.HHZ. 2020-08-28T12:28:13.05 0.6 undecidable manual S 58 57.2982 50 0.14 45
IV.FAGN.HHZ. 2020-08-28T12:28:11.28 0.6 undecidable manual P 48 85.6476 50 1.65 22
IV.CERA.HHZ. 2020-08-28T12:28:11.71 0.3 undecidable manual P 99 101.4207 50 -0.36 59
IV.INTR.HHZ. 2020-08-28T12:28:10.64 0.1 negative manual P 72 94.8384 50 -0.41 79
IT.CSO1.HGZ. 2020-08-28T12:28:10.17 0.6 undecidable manual S 30 45.1215 50 0.5 42
IV.ARRO.EHZ. 2020-08-28T12:28:10.76 0.3 undecidable manual P 358 92.0412 50 0.15 63
IV.BARO.EHZ. 2020-08-28T12:28:09.51 0.3 undecidable manual P 312 83.4498 50 0.22 63
IV.GIUL.HHZ. 2020-08-28T12:28:09.32 0.3 undecidable manual S 120 42.5241 50 0.35 66
IV.GUAR.HHZ. 2020-08-28T12:28:08.64 0.3 undecidable manual S 83 41.8248 50 -0.13 69
IV.TOLF.HHN. 2020-08-28T12:28:08.46 0.6 undecidable manual P 298 75.4689 50 0.4 41
IV.LIK.EHN.01 2020-08-28T12:28:07.17 0.6 undecidable manual P 114 67.9764 50 0.26 43
IV.POFI.HHZ. 2020-08-28T12:28:07.66 0.1 undecidable manual P 92 74.6697 50 -0.28 84
IT.RMVT.HGZ. 2020-08-28T12:28:07.37 0.6 undecidable manual S 310 35.2425 50 0.34 45
IT.RMMM.HGZ. 2020-08-28T12:28:07.21 0.6 undecidable manual S 303 35.2425 50 0.17 46
IV.VVLD.HHZ. 2020-08-28T12:28:06.68 0.1 undecidable manual P 79 68.4759 50 -0.3 85
IV.LRP.EHZ. 2020-08-28T12:28:06.26 0.3 undecidable manual P 100 65.2902 50 -0.23 65
IV.MTCE.HHZ. 2020-08-28T12:28:05.14 0.3 undecidable manual S 349 30.747 50 -0.69 61
IV.FIAM.HHZ. 2020-08-28T12:28:05.80 0.3 undecidable manual P 24 62.7927 50 -0.3 65
IT.MMP1.HGE. 2020-08-28T12:28:05.28 1.0 undecidable manual P 355 55.5999 50 0.28 22
IV.SRES.HHZ. 2020-08-28T12:28:05.29 0.6 undecidable manual P 335 59.3961 50 -0.3 43
IV.LATB.EHZ. 2020-08-28T12:28:05.57 0.3 undecidable manual S 156 31.0467 50 -0.35 68
IV.ROM9.HNZ. 2020-08-28T12:28:04.84 0.3 undecidable manual S 290 25.9518 110 0.46 67
IV.LNKT.HNZ. 2020-08-28T12:28:04.88 0.6 undecidable manual S 290 25.9518 110 0.5 44
IV.PTQR.HHZ. 2020-08-28T12:28:04.96 0.3 undecidable manual P 58 57.2982 50 -0.3 65
IT.RMMM.HGZ. 2020-08-28T12:28:02.10 0.3 undecidable manual P 303 35.2425 50 0.23 69
IT.CSO1.HGZ. 2020-08-28T12:28:02.73 0.6 undecidable manual P 30 45.1215 50 -0.66 40
IV.GUAR.HHZ. 2020-08-28T12:28:02.69 0.1 negative manual P 83 41.8248 50 -0.18 92
IT.RMVT.HGZ. 2020-08-28T12:28:02.17 0.6 undecidable manual P 310 35.2425 50 0.31 45
IV.GIUL.HHZ. 2020-08-28T12:28:02.84 0.1 negative manual P 120 42.5241 50 -0.14 92
IV.RCAV.EHZ. 2020-08-28T12:28:01.54 0.3 undecidable manual S 46 15.4734 121 0.44 68
IV.SAMA.EHZ. 2020-08-28T12:28:01.52 0.6 undecidable manual S 281 18.3705 117 -0.46 45
IV.LATB.EHZ. 2020-08-28T12:28:00.95 0.1 undecidable manual P 156 31.0467 50 -0.27 92
IV.ROM9.HNZ. 2020-08-28T12:28:00.69 0.3 undecidable manual P 290 25.9518 110 0.36 68
IV.LNKT.HNZ. 2020-08-28T12:28:00.74 1.0 undecidable manual P 290 25.9518 110 0.41 22
IV.MTCE.HHZ. 2020-08-28T12:28:00.86 0.1 undecidable manual P 349 30.747 50 -0.31 91
IV.LAV9.HNZ. 2020-08-28T12:28:00.34 0.3 undecidable manual S 229 12.2766 128 0.16 73
IV.RDP.HHZ. 2020-08-28T12:27:59.08 0.3 undecidable manual S 278 8.3805 138 -0.12 74
IV.RMP.HHZ. 2020-08-28T12:27:59.56 0.3 undecidable manual S 308 11.0778 130 -0.31 71
IV.MA9.HHZ. 2020-08-28T12:27:59.66 0.3 undecidable manual S 280 12.7761 127 -0.65 64
IV.VIVA.HHZ. 2020-08-28T12:27:58.06 0.3 undecidable manual S 270 3.3966 160 -0.23 73
IV.SAMA.EHZ. 2020-08-28T12:27:58.75 0.1 positive manual P 281 18.3705 117 -0.2 95
IV.LAV9.HNZ. 2020-08-28T12:27:58.36 0.3 undecidable manual P 229 12.2766 128 0.45 68
IV.RCAV.EHZ. 2020-08-28T12:27:58.55 0.3 undecidable manual P 46 15.4734 121 0.11 73
IV.RMP.HHZ. 2020-08-28T12:27:57.77 0.1 undecidable manual P 308 11.0778 130 0.04 100
IV.RDP.HHZ. 2020-08-28T12:27:57.52 0.1 negative manual P 278 8.3805 138 0.18 97
IV.MA9.HHZ. 2020-08-28T12:27:57.99 0.1 negative manual P 280 12.7761 127 0 100
IV.VIVA.HHZ. 2020-08-28T12:27:56.90 0.1 negative manual P 270 3.3966 160 0.08 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.VIVA.HHE. ML:3.8 0.1334676 0.1408 AML other m 2020-08-28T12:27:58.18
IV.VIVA.HHN. ML:3.6 0.08173797999999999 0.2752 AML other m 2020-08-28T12:27:58.79
IV.RDP.HHE. ML:3.4 0.039410719999999996 0.3776 AML other m 2020-08-28T12:27:59.80
IV.RDP.HHN. ML:3.5 0.042957909999999995 0.1984 AML other m 2020-08-28T12:27:59.78
IV.RMP.HHN. ML:3.4 0.0293615 0.4608 AML other m 2020-08-28T12:28:01.33
IV.RCAV.EHE. ML:2.9 0.007087695999999999 0.3008 AML other m 2020-08-28T12:28:01.88
IV.RMP.HHE. ML:3.3 0.022749835 0.2432 AML other m 2020-08-28T12:28:02.10
IV.RCAV.EHN. ML:2.9 0.0074364285 0.1856 AML other m 2020-08-28T12:28:02.46
IV.LAV9.HNN. ML:3.2 0.01890574 0.4096 AML other m 2020-08-28T12:28:03.97
IV.LAV9.HHN. ML:3.2 0.019699035000000004 0.4032 AML other m 2020-08-28T12:28:03.97
IV.LAV9.HNE. ML:3.2 0.01772813 0.2688 AML other m 2020-08-28T12:28:05.77
IV.LAV9.HHE. ML:3.2 0.019031379999999997 0.2752 AML other m 2020-08-28T12:28:05.78
IV.MTCE.HHE. ML:2.0 0.00051264335 0.3456 AML other m 2020-08-28T12:28:06.12
IV.LATB.EHN. ML:1.6 0.00017327585000000002 0.1984 AML other m 2020-08-28T12:28:06.18
IV.LATB.EHE. ML:1.6 0.0002072916 0.2432 AML other m 2020-08-28T12:28:08.77
IV.MTCE.HHN. ML:2.1 0.00061399305 0.4224 AML other m 2020-08-28T12:28:09.72
IV.GIUL.HHE. ML:2.6 0.0011810193 0.4224 AML other m 2020-08-28T12:28:10.12
IV.GUAR.HHN. ML:2.5 0.0011243240000000001 0.3456 AML other m 2020-08-28T12:28:11.16
IV.GIUL.HHN. ML:2.3 0.0007001754500000001 0.1856 AML other m 2020-08-28T12:28:12.13
IV.GUAR.HHE. ML:2.5 0.0010471810500000001 0.3008 AML other m 2020-08-28T12:28:12.31
IV.PTQR.HHN. ML:2.4 0.0005979714999999999 0.416 AML other m 2020-08-28T12:28:13.74
IV.PTQR.HHE. ML:2.6 0.0008996075 0.2624 AML other m 2020-08-28T12:28:14.29
IV.FIAM.HNN. ML:2.2 0.00030469265 0.544 AML other m 2020-08-28T12:28:15.48
IV.FIAM.HHN. ML:1.8 0.00013270815 0.5248 AML other m 2020-08-28T12:28:15.48
IV.SRES.HHE. ML:2.4 0.00046261235 0.32 AML other m 2020-08-28T12:28:15.41
IV.VVLD.HNN. ML:2.5 0.0006167178 0.544 AML other m 2020-08-28T12:28:16.96
IV.VVLD.HHN. ML:2.5 0.00064268335 0.544 AML other m 2020-08-28T12:28:16.96
IV.VVLD.HHE. ML:2.8 0.0010835240000000002 0.2816 AML other m 2020-08-28T12:28:16.84
IV.VVLD.HNE. ML:2.8 0.0010521674999999999 0.3008 AML other m 2020-08-28T12:28:16.84
IV.SRES.HHN. ML:2.0 0.0002013017 0.2432 AML other m 2020-08-28T12:28:17.37
IV.LRP.EHN. ML:1.8 0.00010544003999999998 0.2816 AML other m 2020-08-28T12:28:18.14
IV.LRP.EHE. ML:2.4 0.00048683065000000006 0.2368 AML other m 2020-08-28T12:28:18.95
IV.POFI.HHE. ML:2.2 0.00021834605 0.384 AML other m 2020-08-28T12:28:19.61
IV.POFI.HNE. ML:2.3 0.00029433415 0.3776 AML other m 2020-08-28T12:28:19.81
IV.POFI.HHN. ML:2.1 0.00017757449999999999 0.3008 AML other m 2020-08-28T12:28:20.06
IV.POFI.HNN. ML:2.2 0.00025664175 0.3136 AML other m 2020-08-28T12:28:20.06
IV.BARO.HNE. ML:2.5 0.00043856605 0.4288 AML other m 2020-08-28T12:28:22.42
IV.BARO.EHE. ML:2.5 0.0004104763 0.4224 AML other m 2020-08-28T12:28:22.42
IV.BARO.EHN. ML:2.4 0.00032294089999999995 0.2944 AML other m 2020-08-28T12:28:22.88
IV.FIAM.HHE. ML:1.9 0.0001520987 0.4032 AML other m 2020-08-28T12:28:22.80
IV.INTR.HNN. ML:2.4 0.0002941922 0.352 AML other m 2020-08-28T12:28:24.75
IV.INTR.HHN. ML:2.4 0.00027011220000000005 0.3584 AML other m 2020-08-28T12:28:24.58
IV.BARO.HNN. ML:2.5 0.00037672810000000004 0.48 AML other m 2020-08-28T12:28:24.82
IV.INTR.HNE. ML:2.4 0.00030648370000000005 0.9664 AML other m 2020-08-28T12:28:24.99
IV.ARRO.EHE. ML:2.3 0.00020290629999999998 0.2432 AML other m 2020-08-28T12:28:27.28
IV.ARRO.EHN. ML:2.3 0.00020634505 0.1792 AML other m 2020-08-28T12:28:27.80
IV.INTR.HHE. ML:2.4 0.00028550645 0.5824 AML other m 2020-08-28T12:28:30.58
IV.CERA.HNN. ML:2.2 0.00016410190000000003 0.416 AML other m 2020-08-28T12:28:31.43
IV.CERA.HHN. ML:2.2 0.00017173870000000002 0.3968 AML other m 2020-08-28T12:28:31.42
IV.CERA.HHE. ML:2.2 0.00014799895000000001 0.3968 AML other m 2020-08-28T12:28:35.34
IV.CERA.HNE. ML:2.2 0.00015880695 0.3968 AML other m 2020-08-28T12:28:35.15
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