Earthquake with magnitude of ML 0.2 on date 21-04-2023 and time 06:02:17 (UTC) in region 6 km E Gualdo Tadino (PG)

A magnitude ML 0.2 earthquake occured in region: 6 km E Gualdo Tadino (PG), on

  • 21-04-2023 06:02:17 (UTC)
  • 21-04-2023 08:02:17 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.2080, 12.8570 at 17 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 6 15208 15208
Fiuminata MC 6 1402 16610
Esanatoglia MC 9 2034 18644
Sefro MC 10 422 19066
Pioraco MC 11 1134 20200
Nocera Umbra PG 12 5839 26039
Fossato di Vico PG 12 2840 28879
Matelica MC 14 9981 38860
Fabriano AN 15 31480 70340
Castelraimondo MC 16 4587 74927
Cerreto d'Esi AN 16 3817 78744
Sigillo PG 17 2404 81148
Serravalle di Chienti MC 17 1070 82218
Gagliole MC 18 620 82838
Valtopina PG 18 1398 84236
Camerino MC 19 6974 91210

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km NE of Foligno (57155 inhabitants)
40 Km E of Perugia (166134 inhabitants)
70 Km SW of Ancona (100861 inhabitants)
72 Km S of Fano (60888 inhabitants)
74 Km N of Terni (111501 inhabitants)
78 Km S of Pesaro (94582 inhabitants)
84 Km E of Arezzo (99543 inhabitants)
92 Km NW of Teramo (54892 inhabitants)
98 Km S of Rimini (147750 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 0.2 2023-04-21
06:02:17
43.208 12.8572 17 2023-04-21
08:54:51
Sala Sismica INGV-Roma 116566801
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-21 06:02:17 ± 0.12
Latitude 43.2080 ± 0.0036
Longitude 12.8572 ± 0.0049
Depth (km) 17 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 116566801

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 447
Semi-minor axis of confidence ellipse (meter) 106
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 212
Circular confidence region, given by single value of horizontal uncertainty (meter) 450.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 100
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.1
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.24012
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 6
Magnitude information

ML:0.2

Field Value
Value 0.2
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 116566801
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-04-21 08:54:51
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FDMO.HHZ. 2023-04-21T06:02:27.02 0.6 undecidable manual S 136 26.6511 111 0 49
IV.ASSB.HHZ. 2023-04-21T06:02:26.54 0.6 undecidable manual S 221 24.3534 113 0.07 49
IV.ARVD.HHZ. 2023-04-21T06:02:26.35 3.0 negative manual P -0.01 0
IV.MML1.EHZ. 2023-04-21T06:02:24.07 0.6 undecidable manual S 138 13.9749 132 -0.04 50
IV.SNTG.HHZ. 2023-04-21T06:02:23.06 0.6 undecidable manual S 52 8.4804 148 -0.11 50
IV.ASSB.HHZ. 2023-04-21T06:02:22.53 0.1 undecidable manual P 221 24.3534 113 -0.01 99
IV.FDMO.HHZ. 2023-04-21T06:02:22.82 0.6 undecidable manual P 136 26.6511 111 -0.04 49
IV.CESI.HHZ. 2023-04-21T06:02:22.26 0.3 positive manual P 170 22.8549 115 -0.06 74
IV.MML1.EHZ. 2023-04-21T06:02:21.23 0.1 undecidable manual P 138 13.9749 132 0.05 100
IV.SNTG.HHZ. 2023-04-21T06:02:20.93 0.6 undecidable manual P 52 8.4804 148 0.3 48
IV.FOSV.EHZ. 2023-04-21T06:02:20.93 0.1 undecidable manual P 321 12.3765 136 -0.07 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MML1.EHE. ML:0.1 0.000011064302 0.2016 AML other m 2023-04-21T06:02:24.56
IV.MML1.EHN. ML:0.3 0.0000138246535 0.16 AML other m 2023-04-21T06:02:24.64
IV.FDMO.HHE. ML:0.3 0.000010075202500000002 0.1216 AML other m 2023-04-21T06:02:27.43
IV.FDMO.HHN. ML:0.0 0.000005818549 0.16 AML other m 2023-04-21T06:02:27.36
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