Earthquake with magnitude of ML 1.9 on date 26-07-2020 and time 01:46:20 (UTC) in region 3 km E Lariano (RM)

A magnitude ML 1.9 earthquake occured in region: 3 km E Lariano (RM), on

  • 26-07-2020 01:46:20 (UTC)
  • 26-07-2020 03:46:20 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.7340, 12.8650 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.

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
Artena RM 4 14276 27708
Labico RM 6 6379 34087
Valmontone RM 7 15959 50046
Rocca Massima LT 8 1136 51182
Velletri RM 9 53303 104485
Rocca Priora RM 11 11962 116447
Cori LT 11 11065 127512
Cave RM 11 11287 138799
San Cesareo RM 11 15153 153952
Colleferro RM 12 21595 175547
Palestrina RM 12 21672 197219
Zagarolo RM 12 17843 215062
Nemi RM 13 1943 217005
Castel San Pietro Romano RM 13 902 217907
Rocca di Papa RM 13 17034 234941
Monte Compatri RM 14 11978 246919
Segni RM 14 9159 256078
Genazzano RM 14 6036 262114
Rocca di Cave RM 14 377 262491
Genzano di Roma RM 15 23970 286461
Lanuvio RM 15 13632 300093
Colonna RM 15 4287 304380
Monte Porzio Catone RM 15 8693 313073
Gallicano nel Lazio RM 16 6334 319407
Cisterna di Latina LT 16 36868 356275
Gavignano RM 16 1916 358191
Ariccia RM 16 19407 377598
Capranica Prenestina RM 16 351 377949
Albano Laziale RM 17 41715 419664
Frascati RM 17 22087 441751
Montelanico RM 17 2131 443882
Poli RM 17 2418 446300
Grottaferrata RM 17 20327 466627
Marino RM 18 43026 509653
Castel Gandolfo RM 18 8997 518650
Paliano FR 18 8281 526931
Norma LT 19 3946 530877
Casape RM 19 744 531621
San Vito Romano RM 19 3273 534894
Olevano Romano RM 20 6687 541581

Municipalities with at least 50000 inhabitants

An earthquake occurred to
9 Km NE of Velletri (53303 inhabitants)
24 Km NE of Aprilia (73446 inhabitants)
26 Km S of Tivoli (56533 inhabitants)
30 Km N of Latina (125985 inhabitants)
31 Km E of Pomezia (62966 inhabitants)
32 Km SE of Guidonia Montecelio (88673 inhabitants)
36 Km SE of Roma (2864731 inhabitants)
37 Km NE of Anzio (54211 inhabitants)
52 Km E of Fiumicino (78395 inhabitants)
82 Km SW of L'Aquila (69753 inhabitants)
94 Km S of Terni (111501 inhabitants)
97 Km E of Civitavecchia (52991 inhabitants)
99 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 1.9 2020-07-26
01:46:20
41.7335 12.8647 12 2020-11-19
12:36:55
Bollettino Sismico Italiano INGV 81447891
Reviewed
Rev100
ML 1.7 2020-07-26
01:46:20
41.7398 12.8837 11 2020-07-26
01:55:29
Sala Sismica INGV-Roma 81349511
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-07-26 01:46:20 ± 0.06
Latitude 41.7335 ± 0.0036
Longitude 12.8647 ± 0.0048
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 81447891

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 439
Semi-minor axis of confidence ellipse (meter) 276
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 196
Circular confidence region, given by single value of horizontal uncertainty (meter) 440.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 83
Number of associated phases, regardless of their use for origin computation 30
Number of defining phases 30
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.07285
Epicentral distance of station farthest from the epicenter (degree) 0.82198
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 17
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.4
Num. used stations 16
Type of magnitude ML
Reference to an origin 81447891
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-08-10 07:04:31

ML:1.7

Field Value
Value 1.7
Uncertainty 0.4
Num. used stations 30
Type of magnitude ML
Reference to an origin 81349511
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-07-26 01:55:29
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FIAM.HNN. 2020-07-26T01:46:40.00 0.6 undecidable manual S 19 62.8926 91 0.45 42
IV.LRP.EHZ. 2020-07-26T01:46:39.64 0.3 undecidable manual S 99 60.5949 91 0.7 59
IV.PTQR.HHZ. 2020-07-26T01:46:37.80 0.6 undecidable manual S 54 54.6009 91 0.44 43
IV.INTR.HHZ. 2020-07-26T01:46:35.67 0.1 undecidable manual P 70 91.242 91 -0.14 85
IV.GIUL.HHZ. 2020-07-26T01:46:33.12 0.3 undecidable manual S 121 37.7289 92 0.27 69
IV.GUAR.HHZ. 2020-07-26T01:46:32.51 0.6 undecidable manual S 79 37.629 92 -0.32 45
IV.POFI.HHZ. 2020-07-26T01:46:32.49 0.1 undecidable manual P 91 70.1742 91 -0.06 90
IV.FIAM.HNN. 2020-07-26T01:46:31.38 0.1 undecidable manual P 19 62.8926 91 -0.05 92
IV.LIK.EHE.01 2020-07-26T01:46:31.24 0.6 undecidable manual P 114 63.1923 91 -0.24 44
IV.SRES.HHZ. 2020-07-26T01:46:31.31 0.6 undecidable manual P 332 63.0924 91 -0.15 45
IV.MTCE.HHZ. 2020-07-26T01:46:31.42 0.6 undecidable manual S 343 33.6441 93 -0.35 46
IV.LRP.EHZ. 2020-07-26T01:46:31.05 0.1 negative manual P 99 60.5949 91 -0.02 92
IV.PTQR.HHZ. 2020-07-26T01:46:30.08 0.3 undecidable manual P 54 54.6009 91 -0.08 69
IV.LATB.EHZ. 2020-07-26T01:46:30.08 0.3 undecidable manual S 163 27.75 94 -0.12 72
IV.RMP.HHZ. 2020-07-26T01:46:27.23 0.6 undecidable manual S 303 15.873 106 0.18 48
IV.GIUL.HHZ. 2020-07-26T01:46:27.49 0.1 undecidable manual P 121 37.7289 92 -0.06 95
IV.GUAR.HHZ. 2020-07-26T01:46:27.42 0.6 undecidable manual P 79 37.629 92 -0.12 47
IV.MA9.HHN. 2020-07-26T01:46:27.30 0.6 undecidable manual S 283 17.4714 102 -0.18 49
IV.LAV9.HHZ. 2020-07-26T01:46:26.64 0.6 undecidable manual S 246 15.0738 108 -0.21 48
IV.MTCE.HHZ. 2020-07-26T01:46:26.76 0.1 undecidable manual P 343 33.6441 93 -0.17 95
IV.RDP.HHZ. 2020-07-26T01:46:26.62 0.6 undecidable manual S 283 13.0758 115 0.25 48
IV.RCAV.EHZ. 2020-07-26T01:46:26.39 0.6 undecidable manual S 28 14.2746 111 -0.26 48
IV.VIVA.HHZ. 2020-07-26T01:46:25.21 0.3 undecidable manual S 283 8.0808 136 -0.05 76
IV.LATB.EHZ. 2020-07-26T01:46:25.81 0.1 positive manual P 163 27.75 94 -0.22 94
IV.RDP.HHZ. 2020-07-26T01:46:24.04 0.1 undecidable manual P 283 13.0758 115 0.23 96
IV.RMP.HHZ. 2020-07-26T01:46:24.42 0.1 positive manual P 303 15.873 106 0.22 96
IV.LAV9.HHZ. 2020-07-26T01:46:24.17 0.6 undecidable manual P 246 15.0738 108 0.08 50
IV.MA9.HHN. 2020-07-26T01:46:24.56 0.3 undecidable manual P 283 17.4714 102 0.11 74
IV.RCAV.EHZ. 2020-07-26T01:46:23.71 0.6 undecidable manual P 28 14.2746 111 -0.26 48
IV.VIVA.HHZ. 2020-07-26T01:46:23.27 0.1 positive manual P 283 8.0808 136 0.1 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RDP.HHE. ML:2.1 0.0007889848 0.1 AML other m 2020-07-26T01:46:27.89
IV.RCAV.EHN. ML:2.0 0.0009275651 0.16 AML other m 2020-07-26T01:46:27.42
IV.RCAV.EHE. ML:1.9 0.0007782316 0.12 AML other m 2020-07-26T01:46:27.43
IV.RDP.HHN. ML:2.2 0.0014960039 0.14 AML other m 2020-07-26T01:46:27.69
IV.RMP.HHE. ML:2.5 0.0021425804999999996 0.16 AML other m 2020-07-26T01:46:28.99
IV.RMP.HHN. ML:2.6 0.003471374 1.88 AML other m 2020-07-26T01:46:28.03
IV.GUAR.HHN. ML:1.5 0.00011274336499999999 0.24 AML other m 2020-07-26T01:46:33.16
IV.GUAR.HHE. ML:1.6 0.00014725054999999997 0.34 AML other m 2020-07-26T01:46:34.54
IV.GIUL.HHE. ML:1.7 0.00017352699999999998 0.12 AML other m 2020-07-26T01:46:33.73
IV.GIUL.HHN. ML:1.8 0.00021464624999999998 0.24 AML other m 2020-07-26T01:46:34.31
IV.LRP.EHE. ML:1.9 0.0001735777 0.22 AML other m 2020-07-26T01:46:40.13
IV.LRP.EHN. ML:1.2 0.000032446865 0.24 AML other m 2020-07-26T01:46:40.04
IV.SRES.HHN. ML:1.4 0.00004266228 0.22 AML other m 2020-07-26T01:46:44.76
IV.SRES.HHE. ML:1.2 0.000027995125 0.26 AML other m 2020-07-26T01:46:42.20
IV.VIVA.HHN. ML:2.6 0.0049073265 0.4 AML other m 2020-07-26T01:46:25.31
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