Earthquake with magnitude of ML 1.6 on date 20-11-2020 and time 06:33:44 (UTC) in region 6 km N Borgorose (RI)

A magnitude ML 1.6 earthquake occured in region: 6 km N Borgorose (RI), on

  • 20-11-2020 06:33:44 (UTC)
  • 20-11-2020 07:33:44 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.244, 13.243 at 7 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
Borgorose RI 6 4591 4591
Tornimparte AQ 7 3187 7778
Pescorocchiano RI 9 2075 9853
Lucoli AQ 10 1011 10864
Fiamignano RI 10 1413 12277
Scoppito AQ 14 3727 16004
Petrella Salto RI 15 1197 17201
Sante Marie AQ 16 1166 18367
Marcetelli RI 16 89 18456
Nespolo RI 17 246 18702
L'Aquila AQ 18 69753 88455
Varco Sabino RI 18 187 88642
Collegiove RI 19 213 88855
Massa d'Albe AQ 19 1476 90331
Ocre AQ 20 1167 91498
Tagliacozzo AQ 20 6889 98387
Magliano de' Marsi AQ 20 3690 102077
Collalto Sabino RI 20 442 102519

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km SW of L'Aquila (69753 inhabitants)
48 Km NE of Tivoli (56533 inhabitants)
50 Km NE of Guidonia Montecelio (88673 inhabitants)
60 Km SW of Teramo (54892 inhabitants)
60 Km SE of Terni (111501 inhabitants)
73 Km NE of Velletri (53303 inhabitants)
74 Km NE of Roma (2864731 inhabitants)
77 Km W of Chieti (51815 inhabitants)
80 Km W of Montesilvano (53738 inhabitants)
84 Km W of Pescara (121014 inhabitants)
87 Km NE of Aprilia (73446 inhabitants)
88 Km NE of Pomezia (62966 inhabitants)
91 Km SE of Foligno (57155 inhabitants)
91 Km NE of Latina (125985 inhabitants)
95 Km E of Viterbo (67173 inhabitants)
98 Km NE of Fiumicino (78395 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 1.6 2020-11-20
06:33:44
42.2445 13.2427 7 2021-02-26
14:56:12
Bollettino Sismico Italiano INGV 85968221
Reviewed
Rev100
ML 1.8 2020-11-20
06:33:44
42.223 13.2098 10 2020-11-20
06:39:54
Sala Sismica INGV-Roma 84864421
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-11-20 06:33:44 ± 0.07
Latitude 42.2445 ± 0.0036
Longitude 13.2427 ± 0.0049
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 85968221

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 435
Semi-minor axis of confidence ellipse (meter) 246
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 306
Circular confidence region, given by single value of horizontal uncertainty (meter) 430
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 67
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.3948
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 11
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 85968221
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-01-06 06:18:28

ML:1.8

Field Value
Value 1.8
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 84864421
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-11-20 06:39:54
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.T0110.HHZ. 2020-11-20T06:33:59.47 0.6 undecidable manual S 92 0.3948 50 0.03 50
IV.LNSS.HNZ. 2020-11-20T06:33:59.54 0.6 undecidable manual S 337 0.3876 50 0.31 47
IV.CSP1.EHZ. 2020-11-20T06:33:59.59 3.0 undecidable manual S -0.18 0
IV.SMA1.EHN. 2020-11-20T06:33:59.20 0.6 undecidable manual S 10 0.3921 50 -0.14 49
IV.CAMP.HHE. 2020-11-20T06:33:56.46 0.6 undecidable manual S 23 0.3157 101 -0.22 49
IV.FAGN.HHZ. 2020-11-20T06:33:54.55 0.3 undecidable manual S 85 0.2536 103 0.23 74
IV.T0110.HHZ. 2020-11-20T06:33:53.04 0.3 undecidable manual P 92 0.3948 50 0 75
IV.PTQR.HHZ. 2020-11-20T06:33:53.72 0.6 undecidable manual S 152 0.2509 103 -0.53 46
IV.SMA1.EHN. 2020-11-20T06:33:52.99 0.6 undecidable manual P 10 0.3921 50 0.01 50
IV.T1299.HNN. 2020-11-20T06:33:52.82 0.6 undecidable manual P 4 0.3903 50 -0.14 49
IV.LNSS.HNZ. 2020-11-20T06:33:52.87 0.6 undecidable manual P 337 0.3876 50 -0.05 50
IV.CAMP.HHE. 2020-11-20T06:33:51.40 0.3 undecidable manual P 23 0.3157 101 -0.05 76
MN.AQU.HNN. 2020-11-20T06:33:51.22 0.6 undecidable manual S 48 0.1628 110 0.25 50
IT.CSO1.HGZ. 2020-11-20T06:33:51.95 0.6 undecidable manual S 219 0.1835 108 0.21 50
IV.FAGN.HHZ. 2020-11-20T06:33:50.55 0.1 undecidable manual P 85 0.2536 103 0.47 93
IV.GIGS.HHN. 2020-11-20T06:33:50.68 0.6 undecidable manual P 49 0.3211 101 -0.88 39
IV.PTQR.HHZ. 2020-11-20T06:33:49.90 0.1 undecidable manual P 152 0.2509 103 -0.14 100
IV.FIAM.HHZ. 2020-11-20T06:33:48.57 0.6 undecidable manual S 284 0.0953 122 -0.08 52
MN.AQU.HNN. 2020-11-20T06:33:48.04 0.3 undecidable manual P 48 0.1628 110 -0.11 77
IT.CSO1.HGZ. 2020-11-20T06:33:48.75 0.3 undecidable manual P 219 0.1835 108 0.16 76
IV.FIAM.HHZ. 2020-11-20T06:33:46.83 0.3 undecidable manual P 284 0.0953 122 0.02 79
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FIAM.HNN. ML:1.9 0.001068765 0.3104 AML other m 2020-11-20T06:33:48.94
IV.FIAM.HHN. ML:1.5 0.0004812426 0.32 AML other m 2020-11-20T06:33:48.95
IV.FAGN.HHE. ML:1.8 0.0003245 0.26 AML other m 2020-11-20T06:33:56.99
IV.T0110.HHN. ML:1.3 6.188164E-5 0.3008 AML other m 2020-11-20T06:34:01.08
IV.FAGN.HHN. ML:1.6 0.0002405 0.32 AML other m 2020-11-20T06:34:02.33
IV.T0110.HHE. ML:1.2 5.003155E-5 0.4608 AML other m 2020-11-20T06:34:03.85
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