Earthquake with magnitude of ML 1.0 on date 19-09-2020 and time 10:55:53 (UTC) in region 3 km W Gualdo Tadino (PG)

A magnitude ML 1.0 earthquake occured in region: 3 km W Gualdo Tadino (PG), on

  • 19-09-2020 10:55:53 (UTC)
  • 19-09-2020 12:55:53 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.24, 12.75 at 12 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
Gualdo Tadino PG 3 15208 15208
Fossato di Vico PG 6 2840 18048
Sigillo PG 10 2404 20452
Costacciaro PG 13 1216 21668
Nocera Umbra PG 15 5839 27507
Valfabbrica PG 15 3389 30896
Esanatoglia MC 16 2034 32930
Fiuminata MC 16 1402 34332
Fabriano AN 16 31480 65812
Gubbio PG 19 32216 98028
Sefro MC 19 422 98450
Scheggia e Pascelupo PG 19 1393 99843

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km N of Foligno (57155 inhabitants)
33 Km E of Perugia (166134 inhabitants)
70 Km SW of Fano (60888 inhabitants)
75 Km E of Arezzo (99543 inhabitants)
75 Km SW of Ancona (100861 inhabitants)
75 Km S of Pesaro (94582 inhabitants)
76 Km N of Terni (111501 inhabitants)
92 Km S of Rimini (147750 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 1.0 2020-09-19
10:55:53
43.24 12.75 12 2020-09-19
11:03:04
Sala Sismica INGV-Roma 83027331
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-19 10:55:53 ± 0.09
Latitude 43.24 ± 0.00
Longitude 12.75 ± 0.00
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 83027331

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 327
Semi-minor axis of confidence ellipse (meter) 315
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 118
Circular confidence region, given by single value of horizontal uncertainty (meter) 330
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 229
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.09
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.38851
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 83027331
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-19 11:03:04
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IT.ACQ.HGZ. 2020-09-19T10:57:46.40 3.0 undecidable manual Sg 17.530001 0
IV.PANTE.HHZ. 2020-09-19T10:57:44.01 3.0 undecidable manual Pg 20.5 0
IV.MILN.HHZ. 2020-09-19T10:57:44.94 3.0 undecidable manual Sg 16.389999 0
CR.STON.BHZ. 2020-09-19T10:57:29.82 3.0 undecidable manual Sn -0.18 0
IV.MFNL.HHZ. 2020-09-19T10:57:23.03 3.0 undecidable manual Pg 13.39 0
IV.MCRV.HHZ. 2020-09-19T10:57:10.75 3.0 undecidable manual Sn -2.01 0
XK.GIZZ.HHZ. 2020-09-19T10:57:04.63 3.0 undecidable manual Pn 1.18 0
IV.VENL.HNZ. 2020-09-19T10:57:01.77 3.0 undecidable manual Sg 1.63 0
IV.SGG.HHZ. 2020-09-19T10:56:51.97 3.0 undecidable manual Sn -0.32 0
IV.MCRV.HHZ. 2020-09-19T10:56:48.38 3.0 undecidable manual Pg 11.62 0
IV.SARZ.HHZ. 2020-09-19T10:56:44.37 3.0 negative manual Pn 1.25 0
GU.RNCA.HHZ. 2020-09-19T10:56:44.10 3.0 undecidable manual Pn 3.87 0
IV.VBKN.HHZ. 2020-09-19T10:56:34.65 3.0 negative manual Pn 2.55 0
IV.BRSN.HNZ. 2020-09-19T10:56:33.61 3.0 undecidable manual S -1.13 0
IV.IMOL.HNZ. 2020-09-19T10:56:18.73 3.0 undecidable manual Pg 0.85 0
IV.CAMP.HHZ. 2020-09-19T10:56:15.60 3.0 undecidable manual S -0.38 0
IV.NARO.HHZ. 2020-09-19T10:56:07.22 0.6 undecidable manual S 341 0.3885 91 0.19 46
IV.NARO.HHZ. 2020-09-19T10:56:01.06 0.3 negative manual P 341 0.3885 91 -0.06 71
IV.ATSC.EHE. 2020-09-19T10:56:00.96 0.6 undecidable manual S 345 0.188 95 -0.11 49
IV.MURB.HHZ. 2020-09-19T10:56:00.54 0.6 undecidable manual S 277 0.1673 97 0.06 49
IV.ATCC.EHZ. 2020-09-19T10:55:58.48 0.6 undecidable manual S 235 0.1007 120 -0.11 50
IV.MURB.HHZ. 2020-09-19T10:55:57.36 0.1 positive manual P 277 0.1673 97 0.02 100
IV.FOSV.EHZ. 2020-09-19T10:55:57.45 0.6 undecidable manual S 6 0.0522 146 -0.1 51
IV.SSFR.HNE. 2020-09-19T10:55:57.83 1.0 undecidable manual P 6 0.1952 95 0.03 25
IV.ATFO.HHZ. 2020-09-19T10:55:57.62 0.6 undecidable manual P 313 0.1808 96 0.05 50
IV.ATSC.EHE. 2020-09-19T10:55:57.60 0.1 undecidable manual P 345 0.188 95 -0.08 98
IV.ATCC.EHZ. 2020-09-19T10:55:56.24 1.0 undecidable manual P 235 0.1007 120 -0.01 25
IV.FOSV.EHZ. 2020-09-19T10:55:55.77 0.1 positive manual P 6 0.0522 146 0.12 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FOSV.EHE. ML:0.9 0.0001125 0.14 AML other m 2020-09-19T10:55:57.57
IV.FOSV.EHN. ML:1.1 0.0001835 0.1 AML other m 2020-09-19T10:55:57.59
IV.ATCC.EHE. ML:0.8 6.78E-5 0.42 AML other m 2020-09-19T10:55:58.78
IV.ATCC.EHN. ML:0.9 8.16E-5 0.22 AML other m 2020-09-19T10:55:58.69
IV.MURB.HHE. ML:1.2 0.0001265 0.2 AML other m 2020-09-19T10:56:00.98
IV.MURB.HHN. ML:1 7.7E-5 1.22 AML other m 2020-09-19T10:56:01.22
IV.IMOL.HNN. ML:3.4 0.001225 0.06 AML other m 2020-09-19T10:56:21.82
IV.IMOL.HNE. ML:3.5 0.00164 0.06 AML other m 2020-09-19T10:56:22.48
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