Earthquake with magnitude of ML 0.8 on date 19-04-2021 and time 02:45:56 (Italy) in region 3 km W Gualdo Tadino (PG)

A magnitude ML 0.8 earthquake occured in region: 3 km W Gualdo Tadino (PG), on

  • 19-04-2021 00:45:56 (UTC)
  • 19-04-2021 02:45:56 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.2240, 12.7570 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
Gualdo Tadino PG 3 15208 15208
Fossato di Vico PG 8 2840 18048
Sigillo PG 12 2404 20452
Nocera Umbra PG 13 5839 26291
Valfabbrica PG 14 3389 29680
Fiuminata MC 15 1402 31082
Costacciaro PG 16 1216 32298
Esanatoglia MC 16 2034 34332
Fabriano AN 17 31480 65812
Sefro MC 18 422 66234
Valtopina PG 18 1398 67632
Pioraco MC 19 1134 68766

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km N of Foligno (57155 inhabitants)
33 Km E of Perugia (166134 inhabitants)
72 Km SW of Fano (60888 inhabitants)
74 Km N of Terni (111501 inhabitants)
76 Km E of Arezzo (99543 inhabitants)
76 Km SW of Ancona (100861 inhabitants)
77 Km S of Pesaro (94582 inhabitants)
94 Km S of Rimini (147750 inhabitants)
100 Km NW of Teramo (54892 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
Reviewed
Rev100
ML 0.8 2021-04-19
00:45:56
43.224 12.7568 10 2021-04-19
00:52:45
Sala Sismica INGV-Roma 89236881
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-04-19 00:45:56 ± 0.06
Latitude 43.2240 ± 0.0036
Longitude 12.7568 ± 0.0062
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 89236881

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 497
Semi-minor axis of confidence ellipse (meter) 380
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 278
Circular confidence region, given by single value of horizontal uncertainty (meter) 500.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 135
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.40739
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 8
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.3
Num. used stations 13
Type of magnitude ML
Reference to an origin 89236881
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-04-19 00:52:45
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.BOZZ.EHZ. 2021-04-19T00:47:18.61 3.0 undecidable manual Sn 0.13 0
IV.MCEL.HHZ. 2021-04-19T00:46:46.66 3.0 undecidable manual Sg 1.97 0
IV.TREG.EHZ. 2021-04-19T00:46:43.81 3.0 negative manual Pg 7.71 0
IV.MTGR.HHZ. 2021-04-19T00:46:42.32 3.0 negative manual Pn 0.99 0
ST.RONC.EHZ. 2021-04-19T00:46:37.27 3.0 undecidable manual Pn -6.84 0
IV.MGR.HHZ. 2021-04-19T00:46:20.68 3.0 undecidable manual Pg 4.33 0
IV.FRON.EHZ. 2021-04-19T00:46:07.14 0.3 undecidable manual S 356 32.6451 50 -0.3 69
IV.ARVD.HHZ. 2021-04-19T00:46:07.85 0.3 undecidable manual S 26 33.8439 50 0.09 72
IV.EL6.EHZ. 2021-04-19T00:46:07.02 0.3 undecidable manual S 67 30.2475 50 0.24 70
IV.LAV9.HHZ. 2021-04-19T00:46:06.29 3.0 undecidable manual S 0.33 0
IV.NARO.HHZ. 2021-04-19T00:46:04.56 0.3 undecidable manual P 342 45.2214 50 -0.02 72
IV.ASSB.HHZ. 2021-04-19T00:46:04.13 0.3 undecidable manual S 202 21.6672 116 -0.3 70
IV.MURB.HHZ. 2021-04-19T00:46:03.84 0.3 undecidable manual S 283 19.2696 118 0.14 73
IV.EL6.EHZ. 2021-04-19T00:46:02.35 0.3 undecidable manual P 67 30.2475 50 0.08 73
IV.FRON.EHZ. 2021-04-19T00:46:02.47 0.6 undecidable manual P 356 32.6451 50 -0.18 47
IV.ARVD.HHZ. 2021-04-19T00:46:02.77 0.3 undecidable manual P 26 33.8439 50 -0.06 72
IV.ATCC.EHZ. 2021-04-19T00:46:01.31 0.1 undecidable manual S 246 10.3785 135 0.11 100
IV.ASSB.HHZ. 2021-04-19T00:46:00.80 0.3 undecidable manual P 202 21.6672 116 -0.12 73
IV.FOSV.EHZ. 2021-04-19T00:46:00.42 0.1 undecidable manual S 3 7.881 143 -0.21 98
IV.MURB.HHZ. 2021-04-19T00:46:00.64 0.3 undecidable manual P 283 19.2696 118 0.15 73
IV.CAFE.HHZ. 2021-04-19T00:45:59.86 3.0 undecidable manual P -5.12 0
IV.ATCC.EHZ. 2021-04-19T00:45:59.23 0.3 undecidable manual P 246 10.3785 135 0.18 74
IV.FOSV.EHZ. 2021-04-19T00:45:58.83 0.1 undecidable manual P 3 7.881 143 0.11 100
IV.POFI.HHZ. 2021-04-19T00:45:52.40 3.0 undecidable manual S -2.85 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATCC.EHN. ML:0.9 0.00009231938000000001 0.18 AML other m 2021-04-19T00:46:01.57
IV.ATCC.EHE. ML:1.1 0.000147 0.22 AML other m 2021-04-19T00:46:01.48
IV.MURB.HHE. ML:1.0 0.000086905995 0.2 AML other m 2021-04-19T00:46:04.49
IV.MURB.HHN. ML:0.9 0.000061881835 0.18 AML other m 2021-04-19T00:46:04.33
IV.ASSB.HHE. ML:0.7 0.0000369 1.04 AML other m 2021-04-19T00:46:05.85
IV.ASSB.HHN. ML:0.7 0.00003591688 0.14 AML other m 2021-04-19T00:46:05.56
IV.FOSV.EHE. ML:0.7 0.000077091045 0.2 AML other m 2021-04-19T00:46:00.72
IV.FOSV.EHN. ML:0.9 0.000114649725 0.18 AML other m 2021-04-19T00:46:00.74
IV.MURB.HNE. ML:1.2 0.00012606934999999999 0.3 AML other m 2021-04-19T00:46:04.26
IV.EL6.EHN. ML:0.6 0.00001754416 0.1 AML other m 2021-04-19T00:46:07.95
IV.FRON.EHE. ML:0.4 0.000009502863 0.08 AML other m 2021-04-19T00:46:07.35
IV.FRON.EHN. ML:0.4 0.0000113143035 0.1 AML other m 2021-04-19T00:46:07.50
IV.NARO.HHE. ML:0.5 0.000009213371 0.08 AML other m 2021-04-19T00:46:11.92
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