Earthquake with magnitude of ML 0.4 on date 28-03-2020 and time 17:49:09 (Italy) in region 4 km S Gualdo Tadino (PG)

A magnitude ML 0.4 earthquake occured in region: 4 km S Gualdo Tadino (PG), on

  • 28-03-2020 16:49:09 (UTC)
  • 28-03-2020 17:49:09 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.19, 12.77 at 13 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 4 15208 15208
Nocera Umbra PG 9 5839 21047
Fossato di Vico PG 11 2840 23887
Fiuminata MC 13 1402 25289
Valfabbrica PG 14 3389 28678
Valtopina PG 15 1398 30076
Sefro MC 15 422 30498
Esanatoglia MC 16 2034 32532
Sigillo PG 16 2404 34936
Pioraco MC 17 1134 36070
Assisi PG 19 28299 64369
Costacciaro PG 19 1216 65585
Fabriano AN 19 31480 97065
Serravalle di Chienti MC 20 1070 98135

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km N of Foligno (57155 inhabitants)
33 Km E of Perugia (166134 inhabitants)
71 Km N of Terni (111501 inhabitants)
75 Km S of Fano (60888 inhabitants)
77 Km SW of Ancona (100861 inhabitants)
78 Km E of Arezzo (99543 inhabitants)
81 Km S of Pesaro (94582 inhabitants)
96 Km NW of Teramo (54892 inhabitants)
98 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
Rev 100 ML 0.4 2020-03-28
16:49:09
43.19 12.77 13 2020-03-28
16:59:33
Sala Sismica INGV-Roma 77650741
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-03-28 16:49:09 ± 0.08
Latitude 43.19 ± 0.00
Longitude 12.77 ± 0.01
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 77650741

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 526
Semi-minor axis of confidence ellipse (meter) 355
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 219
Circular confidence region, given by single value of horizontal uncertainty (meter) 530
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 113
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.24372
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 9
Magnitude information

ML:0.4

Field Value
Value 0.4
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 77650741
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-03-28 16:59:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
MN.CUC.HHZ. 2020-03-28T16:50:58.80 3.0 undecidable manual Sn -5.58 0
IV.MRLC.HHZ. 2020-03-28T16:50:41.92 3.0 undecidable manual Sn -4.28 0
IV.MRB1.HHZ. 2020-03-28T16:50:37.51 3.0 undecidable manual Sg 4.42 0
GU.CANO.HHZ. 2020-03-28T16:50:29.38 3.0 undecidable manual Sn -1.05 0
MN.TRI.HHZ. 2020-03-28T16:50:26.67 3.0 undecidable manual Sg 4.8 0
IV.ROSPO.HHZ. 2020-03-28T16:50:20.81 3.0 undecidable manual Sg 5.54 0
IV.MGR.HHZ. 2020-03-28T16:50:18.02 3.0 undecidable manual Pg 9.37 0
SL.KOGS.BHZ. 2020-03-28T16:50:16.12 3.0 negative manual Pg 5.73 0
IV.LPEL.HHZ. 2020-03-28T16:50:10.64 3.0 undecidable manual Sg 3.72 0
IV.GIUL.HHZ. 2020-03-28T16:50:05.14 3.0 undecidable manual Sn -1.5 0
IV.FIR.HHZ. 2020-03-28T16:49:19.43 3.0 positive manual P -1.63 0
IV.ATSC.EHE. 2020-03-28T16:49:18.80 0.6 undecidable manual S 345 0.2392 97 -0.04 49
IV.ATFO.HHZ. 2020-03-28T16:49:18.73 0.6 undecidable manual S 320 0.2275 97 0.23 47
IV.SSFR.HNE. 2020-03-28T16:49:18.71 0.6 undecidable manual S 1 0.2437 97 -0.24 47
IV.CESI.HNE. 2020-03-28T16:49:17.95 0.6 undecidable manual S 153 0.2104 99 -0.04 49
IV.MURB.HHZ. 2020-03-28T16:49:17.88 0.6 undecidable manual S 291 0.1952 100 0.35 46
IV.MML1.EHE. 2020-03-28T16:49:16.80 0.6 undecidable manual S 119 0.1646 105 0.16 49
IV.SNTG.HNN. 2020-03-28T16:49:15.80 0.6 undecidable manual S 63 0.1358 112 -0.05 50
IV.ATCC.EHZ. 2020-03-28T16:49:14.73 0.6 undecidable manual S 266 0.098 126 -0.14 48
IV.ATFO.HHZ. 2020-03-28T16:49:14.68 0.1 undecidable manual P 320 0.2275 97 0.09 97
IV.SSFR.HNE. 2020-03-28T16:49:14.85 0.1 undecidable manual P 1 0.2437 97 0 98
IV.FOSV.EHZ. 2020-03-28T16:49:14.68 0.6 undecidable manual S 355 0.1025 125 -0.29 47
IV.ATSC.EHE. 2020-03-28T16:49:14.70 0.1 undecidable manual P 345 0.2392 97 -0.09 97
IV.SNTG.HNN. 2020-03-28T16:49:13.16 0.1 undecidable manual P 63 0.1358 112 0.1 98
IV.CESI.HNE. 2020-03-28T16:49:13.95 0.1 undecidable manual P 153 0.2104 99 -0.35 91
IV.MURB.HHZ. 2020-03-28T16:49:13.83 0.1 undecidable manual P 291 0.1952 100 -0.21 95
IV.MML1.EHE. 2020-03-28T16:49:13.84 0.1 undecidable manual P 119 0.1646 105 0.32 94
IV.FOSV.EHZ. 2020-03-28T16:49:12.61 0.1 positive manual P 355 0.1025 125 0.05 100
IV.ATCC.EHZ. 2020-03-28T16:49:12.59 0.1 undecidable manual P 266 0.098 126 0.09 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FIR.HHN. ML:2.5 0.0002045 0.06 AML other m 2020-03-28T16:49:50.41
IV.FIR.HHE. ML:2.5 0.00019 1.58 AML other m 2020-03-28T16:49:51.03
IV.ATCC.EHE. ML:0.2 1.6685215E-5 0.0896 AML other m 2020-03-28T16:49:14.84
IV.ATCC.EHN. ML:0.3 2.2084938E-5 0.2816 AML other m 2020-03-28T16:49:14.98
IV.FOSV.EHE. ML:0 8.0721585E-6 0.128 AML other m 2020-03-28T16:49:14.81
IV.FOSV.EHN. ML:0 1.10168045E-5 0.2176 AML other m 2020-03-28T16:49:15.19
IV.MURB.HHN. ML:0.6 2.4911843E-5 0.3072 AML other m 2020-03-28T16:49:18.19
IV.MURB.HHE. ML:0.8 3.87952E-5 0.256 AML other m 2020-03-28T16:49:18.25
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