Earthquake with magnitude of ML 1.2 on date 16-02-2020 and time 21:17:51 (UTC) in region 6 km N Valfabbrica (PG)

A magnitude ML 1.2 earthquake occured in region: 6 km N Valfabbrica (PG), on

  • 16-02-2020 21:17:51 (UTC)
  • 16-02-2020 22:17:51 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.22, 12.61 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
Valfabbrica PG 7 3389 3389
Gualdo Tadino PG 14 15208 18597
Fossato di Vico PG 15 2840 21437
Gubbio PG 15 32216 53653
Assisi PG 16 28299 81952
Sigillo PG 16 2404 84356
Bastia Umbra PG 18 21874 106230
Costacciaro PG 18 1216 107446
Nocera Umbra PG 19 5839 113285

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km NE of Perugia (166134 inhabitants)
30 Km N of Foligno (57155 inhabitants)
65 Km E of Arezzo (99543 inhabitants)
73 Km N of Terni (111501 inhabitants)
77 Km SW of Fano (60888 inhabitants)
81 Km SW of Pesaro (94582 inhabitants)
86 Km SW of Ancona (100861 inhabitants)
94 Km S of Rimini (147750 inhabitants)
98 Km NE of Viterbo (67173 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 1.2 2020-02-16
21:17:51
43.22 12.61 10 2020-02-16
21:28:16
Sala Sismica INGV-Roma 76575681
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-02-16 21:17:51 ± 0.11
Latitude 43.22 ± 0.01
Longitude 12.61 ± 0.01
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 76575681

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 839
Semi-minor axis of confidence ellipse (meter) 708
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 344
Circular confidence region, given by single value of horizontal uncertainty (meter) 840
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 82
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.37
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.56477
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.4
Num. used stations 6
Type of magnitude ML
Reference to an origin 76575681
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-02-16 21:28:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ZONE.HHZ. 2020-02-16T21:19:32.53 3.0 undecidable manual Sg 7.38 0
IV.GRI.EHZ. 2020-02-16T21:19:10.14 3.0 undecidable manual Pg 5.73 0
IV.ZONE.HHZ. 2020-02-16T21:18:46.07 3.0 positive manual Pg 3.21 0
IV.FIU.EHZ. 2020-02-16T21:18:44.03 3.0 undecidable manual Sn -5.24 0
IV.FIR.HHZ. 2020-02-16T21:18:27.14 3.0 undecidable manual Sn -8.74 0
IV.MOMA.HHE. 2020-02-16T21:18:07.28 0.6 undecidable manual S 184 0.4155 50 0.63 41
IV.ARVD.HHZ. 2020-02-16T21:18:05.58 0.6 undecidable manual S 40 0.3678 50 0.32 45
IV.CESI.HHE. 2020-02-16T21:18:03.74 0.1 undecidable manual S 135 0.3013 50 0.47 89
IV.MML1.HNE. 2020-02-16T21:18:03.01 0.1 undecidable manual S 112 0.2815 50 0.31 93
IV.ATVO.HHZ. 2020-02-16T21:18:01.11 0.6 undecidable manual S 318 0.2221 112 0.22 48
IV.ATTE.HNE. 2020-02-16T21:18:00.08 0.1 undecidable manual S 264 0.1898 115 0.33 95
IV.ARVD.HHZ. 2020-02-16T21:17:59.03 0.1 undecidable manual P 40 0.3678 50 -0.48 89
IV.GAVE.EHZ. 2020-02-16T21:17:59.79 0.1 undecidable manual S 0.5648 -9.99 0
IV.MOMA.HHE. 2020-02-16T21:17:59.49 0.1 undecidable manual P 184 0.4155 50 -0.82 77
IV.CESI.HHE. 2020-02-16T21:17:58.40 0.1 undecidable manual P 135 0.3013 50 0.03 98
IV.FOSV.EHZ. 2020-02-16T21:17:57.84 0.6 undecidable manual S 55 0.1322 124 0.01 51
IV.MML1.HNE. 2020-02-16T21:17:57.47 0.1 undecidable manual P 112 0.2815 50 -0.56 88
IV.ATVO.HHZ. 2020-02-16T21:17:57.14 1.0 positive manual P 318 0.2221 112 0.15 24
IV.GAVE.EHZ. 2020-02-16T21:17:56.60 0.1 undecidable manual P 0.5648 -6.27 0
IV.MURB.HHZ. 2020-02-16T21:17:56.70 0.6 undecidable manual S 305 0.0782 139 0.45 47
IV.ATCC.EHZ. 2020-02-16T21:17:55.27 0.6 undecidable manual S 149 0.0387 157 -0.16 50
IV.FOSV.EHZ. 2020-02-16T21:17:55.35 0.1 undecidable manual P 55 0.1322 124 0.13 100
IV.ATTE.HNE. 2020-02-16T21:17:55.81 0.1 undecidable manual P 264 0.1898 115 -0.51 90
IV.MURB.HHZ. 2020-02-16T21:17:54.74 1.0 undecidable manual P 305 0.0782 139 0.43 24
IV.ATCC.EHZ. 2020-02-16T21:17:53.96 1.0 undecidable manual P 149 0.0387 157 0.12 26
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATCC.EHN. ML:1.5 0.0005655 0.24 AML other m 2020-02-16T21:17:55.40
IV.ATCC.EHE. ML:1.3 0.000332 0.56 AML other m 2020-02-16T21:17:55.41
IV.MURB.HHN. ML:1.2 0.000218 0.2 AML other m 2020-02-16T21:17:56.88
IV.MURB.HHE. ML:1.4 0.000314 0.34 AML other m 2020-02-16T21:17:57.18
IV.FOSV.EHE. ML:0.5 3.0E-5 1.6 AML other m 2020-02-16T21:17:58.93
IV.FOSV.EHN. ML:0.4 2.565E-5 0.48 AML other m 2020-02-16T21:17:58.14
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