Earthquake with magnitude of ML 1.1 on date 21-06-2020 and time 08:53:46 (Italy) in region Varco Sabino (RI)

A magnitude ML 1.1 earthquake occured in region: Varco Sabino (RI), on

  • 21-06-2020 06:53:46 (UTC)
  • 21-06-2020 08:53:46 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.24, 13.02 at 24 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
Varco Sabino RI 0 187 187
Marcetelli RI 2 89 276
Ascrea RI 5 234 510
Castel di Tora RI 6 288 798
Paganico Sabino RI 6 172 970
Longone Sabino RI 6 597 1567
Colle di Tora RI 7 372 1939
Collegiove RI 7 213 2152
Petrella Salto RI 7 1197 3349
Fiamignano RI 9 1413 4762
Rocca Sinibalda RI 9 815 5577
Concerviano RI 10 291 5868
Nespolo RI 10 246 6114
Pozzaglia Sabina RI 10 360 6474
Pescorocchiano RI 11 2075 8549
Turania RI 11 241 8790
Collalto Sabino RI 12 442 9232
Poggio Moiano RI 13 2751 11983
Torricella in Sabina RI 13 1342 13325
Monteleone Sabino RI 14 1224 14549
Orvinio RI 14 405 14954
Belmonte in Sabina RI 14 636 15590
Poggio San Lorenzo RI 15 589 16179
Vivaro Romano RM 15 182 16361
Carsoli AQ 17 5396 21757
Scandriglia RI 17 3108 24865
Vallinfreda RM 17 283 25148
Castel Sant'Angelo RI 17 1308 26456
Cittaducale RI 18 6828 33284
Montenero Sabino RI 18 299 33583
Frasso Sabino RI 18 743 34326
Borgorose RI 18 4591 38917
Casaprota RI 18 744 39661
Percile RM 19 255 39916
Borgo Velino RI 19 972 40888
Poggio Nativo RI 19 2622 43510
Riofreddo RM 20 781 44291

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km W of L'Aquila (69753 inhabitants)
36 Km NE of Tivoli (56533 inhabitants)
36 Km NE of Guidonia Montecelio (88673 inhabitants)
47 Km SE of Terni (111501 inhabitants)
59 Km NE of Roma (2864731 inhabitants)
65 Km NE of Velletri (53303 inhabitants)
73 Km SW of Teramo (54892 inhabitants)
77 Km NE of Pomezia (62966 inhabitants)
78 Km E of Viterbo (67173 inhabitants)
78 Km NE of Aprilia (73446 inhabitants)
83 Km NE of Fiumicino (78395 inhabitants)
84 Km SE of Foligno (57155 inhabitants)
86 Km N of Latina (125985 inhabitants)
94 Km NE of Anzio (54211 inhabitants)
95 Km W of Chieti (51815 inhabitants)
98 Km W of Montesilvano (53738 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 1.1 2020-06-21
06:53:46
42.24 13.02 24 2020-06-21
07:00:09
Sala Sismica INGV-Roma 80367111
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-06-21 06:53:46 ± 0.22
Latitude 42.24 ± 0.01
Longitude 13.02 ± 0.02
Depth (km) 24 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 80367111

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1559
Semi-minor axis of confidence ellipse (meter) 427
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 277
Circular confidence region, given by single value of horizontal uncertainty (meter) 1560
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 145
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 12
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
Epicentral distance of station farthest from the epicenter (degree) 0.59715
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 80367111
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-06-21 07:00:09
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
CH.FUORN.HHZ. 2020-06-21T06:55:45.28 3.0 undecidable manual Sn -4.13 0
GU.ROTM.HHZ. 2020-06-21T06:55:34.90 3.0 undecidable manual Sn -1.93 0
IV.GMB.BHZ. 2020-06-21T06:55:10.84 3.0 undecidable manual Pg 17.57 0
IV.MNTV.HNZ. 2020-06-21T06:54:47.05 3.0 undecidable manual Pg 11.98 0
IV.MSAG.HHZ. 2020-06-21T06:54:46.78 3.0 undecidable manual Sn -0.35 0
IV.ZONE.HHZ. 2020-06-21T06:54:45.62 3.0 undecidable manual Pn -0.02 0
IV.MBAL.EHZ. 2020-06-21T06:54:38.04 3.0 undecidable manual Pn -3.39 0
CR.STON.BHZ. 2020-06-21T06:54:37.96 3.0 undecidable manual Pn 0 0
IV.SIRI.HHZ. 2020-06-21T06:54:29.35 3.0 undecidable manual Pn -1.51 0
IV.NRCA.HHZ. 2020-06-21T06:54:07.89 0.1 undecidable manual S 6 0.5971 104 0.37 85
IV.LNSS.HHZ. 2020-06-21T06:54:00.91 0.1 undecidable manual S 2 0.3633 114 -0.03 94
IV.RM33.EHZ. 2020-06-21T06:53:59.31 0.1 undecidable manual S 28 0.304 119 -0.06 95
IV.CERT.HHZ. 2020-06-21T06:53:59.18 0.1 undecidable manual S 186 0.2923 120 0.12 94
IV.VVLD.HHZ. 2020-06-21T06:53:58.07 0.6 negative manual P 130 0.5783 104 -0.43 41
IV.NRCA.HHZ. 2020-06-21T06:53:58.97 0.6 positive manual P 6 0.5971 104 0.16 44
IV.LNSS.HHZ. 2020-06-21T06:53:54.26 0.6 undecidable manual P 2 0.3633 114 -0.76 38
IV.FIAM.HHZ. 2020-06-21T06:53:54.67 0.1 undecidable manual S 68 0.0746 159 -0.06 100
IV.RM33.EHZ. 2020-06-21T06:53:54.51 1.0 negative manual P 28 0.304 119 0.4 22
IV.ARRO.EHZ. 2020-06-21T06:53:54.69 0.6 positive manual P 331 0.3894 113 -0.74 39
IV.CERT.HHZ. 2020-06-21T06:53:54.22 0.6 positive manual P 186 0.2923 120 0.28 46
IV.FIAM.HHZ. 2020-06-21T06:53:51.68 0.6 undecidable manual P 68 0.0746 159 0.25 48
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FIAM.HHE. ML:0.8 3.49E-5 0.18 AML other m 2020-06-21T06:53:54.63
IV.FIAM.HHN. ML:0.6 2.71E-5 0.14 AML other m 2020-06-21T06:53:55.30
IV.RM33.EHE. ML:1.1 4.445E-5 1.62 AML other m 2020-06-21T06:53:59.17
IV.CERT.HHE. ML:1.2 4.775E-5 1.34 AML other m 2020-06-21T06:54:00.83
IV.RM33.EHN. ML:0.9 3.13E-5 1 AML other m 2020-06-21T06:54:00.94
IV.ARRO.EHN. ML:1.3 5.31E-5 0.14 AML other m 2020-06-21T06:54:00.50
IV.CERT.HHN. ML:1.2 5.48E-5 0.78 AML other m 2020-06-21T06:54:00.99
IV.ARRO.EHE. ML:1.2 3.905E-5 0.34 AML other m 2020-06-21T06:54:00.63
IV.NRCA.HHN. ML:1.2 2.505E-5 0.9 AML other m 2020-06-21T06:54:09.81
IV.NRCA.HHE. ML:1.3 3.085E-5 0.42 AML other m 2020-06-21T06:54:10.48
IV.APEC.HHN. ML:1.9 3.66E-5 0.22 AML other m 2020-06-21T06:54:26.08
IV.APEC.HHE. ML:1.9 4.235E-5 0.06 AML other m 2020-06-21T06:54:26.16
IV.SIRI.HHN. ML:2.6 3.875E-5 0.42 AML other m 2020-06-21T06:54:42.21
IV.APEC.HNE. ML:3.2 0.00074415 0.56 AML other m 2020-06-21T06:54:45.28
IV.APEC.HNN. ML:5.3 0.094 1.6 AML other m 2020-06-21T06:54:56.90
IV.ZONE.HHN. ML:3 3.45E-5 0.74 AML other m 2020-06-21T06:54:58.60
IV.ZONE.HHE. ML:2.8 2.3115E-5 0.32 AML other m 2020-06-21T06:54:58.68
IV.SIRI.HNE. ML:2.8 5.525E-5 0.46 AML other m 2020-06-21T06:55:03.20
IV.SIRI.HNN. ML:2.7 4.85E-5 1.58 AML other m 2020-06-21T06:55:39.07
IV.SIRI.HHE. ML:2.6 3.96E-5 0.78 AML other m 2020-06-21T06:55:41.33
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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Type Description Link
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