Earthquake with magnitude of ML 1.2 on date 21-06-2020 and time 04:10:30 (Italy) in region 2 km SW Fiano Romano (RM)

A magnitude ML 1.2 earthquake occured in region: 2 km SW Fiano Romano (RM), on

  • 21-06-2020 02:10:30 (UTC)
  • 21-06-2020 04:10:30 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.16, 12.58 at 9 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
Fiano Romano RM 2 15360 15360
Capena RM 4 10592 25952
Civitella San Paolo RM 5 2066 28018
Morlupo RM 7 8696 36714
Castelnuovo di Porto RM 8 8630 45344
Nazzano RM 8 1436 46780
Riano RM 9 10466 57246
Torrita Tiberina RM 10 1089 58335
Sant'Oreste RM 10 3687 62022
Rignano Flaminio RM 11 10277 72299
Filacciano RM 11 477 72776
Ponzano Romano RM 12 1155 73931
Monterotondo RM 12 40830 114761
Magliano Romano RM 12 1448 116209
Sacrofano RM 13 7740 123949
Montelibretti RM 13 5323 129272
Fara in Sabina RI 13 13742 143014
Montopoli di Sabina RI 13 4210 147224
Mentana RM 14 22921 170145
Faleria VT 14 2179 172324
Poggio Mirteto RI 15 6315 178639
Calcata VT 15 918 179557
Toffia RI 15 1058 180615
Castelnuovo di Farfa RI 16 1059 181674
Forano RI 16 3179 184853
Stimigliano RI 16 2328 187181
Moricone RM 16 2650 189831
Mazzano Romano RM 16 3165 192996
Campagnano di Roma RM 17 11571 204567
Nerola RM 17 1926 206493
Sant'Angelo Romano RM 17 5018 211511
Formello RM 17 12918 224429
Mompeo RI 17 530 224959
Salisano RI 18 567 225526
Cantalupo in Sabina RI 18 1685 227211
Fonte Nuova RM 18 32562 259773
Palombara Sabina RM 18 13269 273042
Poggio Catino RI 18 1341 274383
Montorio Romano RM 18 1984 276367
Selci RI 19 1106 277473
Poggio Nativo RI 19 2622 280095

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km NW of Guidonia Montecelio (88673 inhabitants)
28 Km NW of Tivoli (56533 inhabitants)
30 Km N of Roma (2864731 inhabitants)
46 Km S of Terni (111501 inhabitants)
49 Km SE of Viterbo (67173 inhabitants)
51 Km NE of Fiumicino (78395 inhabitants)
54 Km N of Pomezia (62966 inhabitants)
54 Km N of Velletri (53303 inhabitants)
63 Km N of Aprilia (73446 inhabitants)
66 Km E of Civitavecchia (52991 inhabitants)
71 Km W of L'Aquila (69753 inhabitants)
79 Km N of Anzio (54211 inhabitants)
81 Km NW of Latina (125985 inhabitants)
90 Km S of Foligno (57155 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.2 2020-06-21
02:10:30
42.16 12.59 9 2020-06-21
02:36:54
Sala Sismica INGV-Roma 80361571
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-06-21 02:10:30 ± 0.11
Latitude 42.16 ± 0.01
Longitude 12.59 ± 0.01
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 80361571

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 728
Semi-minor axis of confidence ellipse (meter) 493
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 64
Circular confidence region, given by single value of horizontal uncertainty (meter) 730
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 104
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.09893
Epicentral distance of station farthest from the epicenter (degree) 0.45326
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 80361571
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-06-21 02:36:54
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CESX.HHZ. 2020-06-21T02:10:47.35 0.1 undecidable manual S 0 0.4533 50 0.61 82
IV.BARO.HNN. 2020-06-21T02:10:45.32 0.3 undecidable manual S 283 0.4065 50 -0.03 72
IV.SAMA.EHZ. 2020-06-21T02:10:43.81 0.6 undecidable manual S 179 0.3741 50 -0.6 42
IV.CERT.HHZ. 2020-06-21T02:10:43.70 0.6 undecidable manual S 125 0.3588 50 -0.25 46
IV.ARRO.EHZ. 2020-06-21T02:10:39.30 0.6 positive manual P 17 0.4443 50 -0.38 44
IV.CESX.HHZ. 2020-06-21T02:10:39.32 0.1 undecidable manual P 0 0.4533 50 -0.52 85
IV.RDP.HHE. 2020-06-21T02:10:39.50 1.0 undecidable manual P 167 0.4056 50 0.48 22
IV.RCAV.EHN. 2020-06-21T02:10:39.78 1.0 undecidable manual P 139 0.4074 50 0.72 20
IV.CERT.HHZ. 2020-06-21T02:10:38.00 0.6 undecidable manual P 125 0.3588 50 -0.23 46
IV.RMP.HHZ. 2020-06-21T02:10:38.80 0.6 positive manual P 165 0.3543 50 0.65 41
IV.BARO.HNN. 2020-06-21T02:10:38.82 0.3 undecidable manual P 283 0.4065 50 -0.21 69
IV.SAMA.EHZ. 2020-06-21T02:10:38.71 0.1 undecidable manual P 179 0.3741 50 0.22 92
IV.MTCE.HHZ. 2020-06-21T02:10:37.93 0.6 undecidable manual S 139 0.1763 115 0.05 50
IT.MMP1.HGZ. 2020-06-21T02:10:37.12 0.1 undecidable manual S 52 0.1529 118 0.04 100
IV.SRES.HHZ. 2020-06-21T02:10:35.35 0.6 undecidable manual S 326 0.0989 129 0 51
IV.MTCE.HHZ. 2020-06-21T02:10:34.82 0.1 positive manual P 139 0.1763 115 0.1 98
IT.MMP1.HGZ. 2020-06-21T02:10:34.06 0.1 undecidable manual P 52 0.1529 118 -0.2 97
IV.SRES.HHZ. 2020-06-21T02:10:33.39 0.6 undecidable manual P 326 0.0989 129 0.13 50
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SRES.HHN. ML:1.2 0.0002145 0.88 AML other m 2020-06-21T02:10:35.64
IV.SRES.HHE. ML:1.1 0.0001765 0.32 AML other m 2020-06-21T02:10:35.77
IV.MTCE.HHN. ML:1.1 9.135E-5 0.42 AML other m 2020-06-21T02:10:38.37
IV.MTCE.HHE. ML:1.2 0.00011155 1.14 AML other m 2020-06-21T02:10:38.24
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download