Earthquake with magnitude of ML 1.6 on date 20-02-2020 and time 22:48:27 (Italy) in region 3 km NE Borgorose (RI)

A magnitude ML 1.6 earthquake occured in region: 3 km NE Borgorose (RI), on

  • 20-02-2020 21:48:27 (UTC)
  • 20-02-2020 22:48:27 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.22, 13.25 at 10 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
Borgorose RI 3 4591 4591
Pescorocchiano RI 8 2075 6666
Tornimparte AQ 9 3187 9853
Lucoli AQ 11 1011 10864
Fiamignano RI 11 1413 12277
Sante Marie AQ 14 1166 13443
Marcetelli RI 16 89 13532
Nespolo RI 16 246 13778
Petrella Salto RI 17 1197 14975
Scoppito AQ 17 3727 18702
Tagliacozzo AQ 17 6889 25591
Massa d'Albe AQ 18 1476 27067
Magliano de' Marsi AQ 18 3690 30757
Collegiove RI 18 213 30970
Varco Sabino RI 19 187 31157
Collalto Sabino RI 19 442 31599
L'Aquila AQ 19 69753 101352
Scurcola Marsicana AQ 19 2824 104176
Carsoli AQ 19 5396 109572

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km SW of L'Aquila (69753 inhabitants)
47 Km NE of Tivoli (56533 inhabitants)
49 Km NE of Guidonia Montecelio (88673 inhabitants)
61 Km SW of Teramo (54892 inhabitants)
62 Km SE of Terni (111501 inhabitants)
71 Km NE of Velletri (53303 inhabitants)
73 Km NE of Roma (2864731 inhabitants)
77 Km W of Chieti (51815 inhabitants)
81 Km W of Montesilvano (53738 inhabitants)
84 Km W of Pescara (121014 inhabitants)
86 Km NE of Aprilia (73446 inhabitants)
87 Km NE of Pomezia (62966 inhabitants)
89 Km NE of Latina (125985 inhabitants)
93 Km SE of Foligno (57155 inhabitants)
96 Km E of Viterbo (67173 inhabitants)
97 Km NE of Fiumicino (78395 inhabitants)
100 Km NE of Anzio (54211 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
Rev 100 ML 1.6 2020-02-20
21:48:27
42.22 13.25 10 2020-02-20
21:53:56
Sala Sismica INGV-Roma 76683231
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-02-20 21:48:27 ± 0.05
Latitude 42.22 ± 0.00
Longitude 13.25 ± 0.00
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 76683231

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 278
Semi-minor axis of confidence ellipse (meter) 249
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 113
Circular confidence region, given by single value of horizontal uncertainty (meter) 280
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 79
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.536
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.1
Num. used stations 20
Type of magnitude ML
Reference to an origin 76683231
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-02-20 21:53:56
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.COLB.HHZ. 2020-02-20T21:49:17.49 3.0 undecidable manual S 0.51 0
IV.ARRO.EHZ. 2020-02-20T21:48:45.12 0.6 undecidable manual S 315 0.5018 50 -0.12 46
IV.SMA1.EHZ. 2020-02-20T21:48:43.08 0.6 undecidable manual S 9 0.4119 50 0.5 43
IV.T0110.HHZ. 2020-02-20T21:48:42.45 0.6 undecidable manual S 89 0.3921 50 0.46 44
IV.CAMP.HHZ. 2020-02-20T21:48:40.21 0.6 undecidable manual S 21 0.3345 50 -0.06 48
IV.CERT.HHZ. 2020-02-20T21:48:40.55 0.6 undecidable manual S 216 0.3372 50 0.19 47
IV.GIGS.HHZ. 2020-02-20T21:48:40.12 0.6 undecidable manual S 46 0.3327 50 -0.12 47
IV.RM33.EHZ. 2020-02-20T21:48:38.69 0.6 undecidable manual S 355 0.286 50 -0.16 47
IV.GAVE.EHZ. 2020-02-20T21:48:38.33 0.1 undecidable manual P 331 0.536 50 -0.03 93
IV.INTR.HHZ. 2020-02-20T21:48:37.99 0.1 undecidable manual P 113 0.5324 50 -0.31 88
IV.ARRO.EHZ. 2020-02-20T21:48:37.69 0.6 negative manual P 315 0.5018 50 -0.1 46
IV.PTQR.HHZ. 2020-02-20T21:48:37.22 0.6 undecidable manual S 150 0.232 111 0.08 49
IV.T0110.HHZ. 2020-02-20T21:48:36.02 1.0 positive manual P 89 0.3921 50 0.11 23
IV.SMA1.EHZ. 2020-02-20T21:48:36.25 0.1 undecidable manual P 9 0.4119 50 0 95
IV.CERT.HHZ. 2020-02-20T21:48:35.00 0.6 undecidable manual P 216 0.3372 50 0.04 48
MN.AQU.HHE. 2020-02-20T21:48:35.21 0.6 undecidable manual S 42 0.1754 116 0.05 49
IV.GIGS.HHZ. 2020-02-20T21:48:34.77 0.1 undecidable manual P 46 0.3327 50 -0.12 95
IV.RM33.EHZ. 2020-02-20T21:48:34.06 0.6 positive manual P 355 0.286 50 -0.03 49
IV.CAMP.HHZ. 2020-02-20T21:48:34.96 0.6 positive manual P 21 0.3345 50 0.04 48
IV.PTQR.HHZ. 2020-02-20T21:48:32.95 0.6 negative manual P 150 0.232 111 -0.15 48
IV.FIAM.HHZ. 2020-02-20T21:48:32.93 0.6 undecidable manual S 295 0.1052 130 0.06 50
MN.AQU.HHE. 2020-02-20T21:48:31.96 0.1 undecidable manual P 42 0.1754 116 0 100
IV.FIAM.HHZ. 2020-02-20T21:48:30.71 0.3 positive manual P 295 0.1052 130 0.06 75
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FIAM.HHN. ML:1.7 0.000573 0.72 AML other m 2020-02-20T21:48:33.78
IV.FIAM.HHE. ML:1.7 0.0005495 0.12 AML other m 2020-02-20T21:48:33.58
IV.PTQR.HHN. ML:1.4 0.000145 1.36 AML other m 2020-02-20T21:48:37.26
IV.PTQR.HHE. ML:1.4 0.000141 1.24 AML other m 2020-02-20T21:48:38.76
IV.RM33.EHE. ML:1.7 0.000238 0.18 AML other m 2020-02-20T21:48:39.92
IV.CERT.HHE. ML:1.6 0.000133 0.82 AML other m 2020-02-20T21:48:40.80
IV.RM33.EHN. ML:1.7 0.000243 1.04 AML other m 2020-02-20T21:48:40.94
IV.CAMP.HHE. ML:1.4 9.465E-5 1.32 AML other m 2020-02-20T21:48:42.80
IV.CERT.HHN. ML:1.4 8.5E-5 1.16 AML other m 2020-02-20T21:48:43.69
IV.CAMP.HHN. ML:1.6 0.0001455 1.36 AML other m 2020-02-20T21:48:43.86
IV.SMA1.EHN. ML:1.7 0.0001395 0.44 AML other m 2020-02-20T21:48:45.29
IV.SMA1.EHE. ML:1.8 0.0001945 0.38 AML other m 2020-02-20T21:48:45.42
IV.T0110.HHN. ML:1.6 0.0001235 0.88 AML other m 2020-02-20T21:48:45.29
IV.ARRO.EHN. ML:1.5 7.07E-5 0.22 AML other m 2020-02-20T21:48:46.49
IV.GAVE.EHE. ML:1.6 7.435E-5 1.08 AML other m 2020-02-20T21:48:48.97
IV.ARRO.EHE. ML:1.5 7.13E-5 0.2 AML other m 2020-02-20T21:48:49.36
IV.GAVE.EHN. ML:1.6 7.87E-5 0.56 AML other m 2020-02-20T21:48:49.44
IV.INTR.HHN. ML:1.6 7.35E-5 1.46 AML other m 2020-02-20T21:48:51.92
IV.INTR.HHE. ML:1.6 8.085E-5 1.08 AML other m 2020-02-20T21:48:51.78
IV.T0110.HHE. ML:1.6 0.00014 1.24 AML other m 2020-02-20T21:48:54.05
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