Earthquake with magnitude of ML 0.3 on date 22-10-2021 and time 22:14:00 (UTC) in region 6 km NE Sellano (PG)

A magnitude ML 0.3 earthquake occured in region: 6 km NE Sellano (PG), on

  • 22-10-2021 22:14:00 (UTC)
  • 23-10-2021 00:14:00 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9420, 12.9520 at 8 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
Sellano PG 6 1079 1079
Monte Cavallo MC 7 145 1224
Preci PG 10 724 1948
Visso MC 11 1107 3055
Cerreto di Spoleto PG 14 1075 4130
Pieve Torina MC 14 1458 5588
Serravalle di Chienti MC 15 1070 6658
Ussita MC 15 444 7102
Fiordimonte MC 16 202 7304
Castelsantangelo sul Nera MC 17 281 7585
Pievebovigliana MC 17 866 8451
Muccia MC 17 915 9366
Trevi PG 18 8469 17835
Campello sul Clitunno PG 20 2442 20277
Fiastra MC 20 559 20836

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km E of Foligno (57155 inhabitants)
49 Km NE of Terni (111501 inhabitants)
49 Km E of Perugia (166134 inhabitants)
69 Km W of Teramo (54892 inhabitants)
75 Km NW of L'Aquila (69753 inhabitants)
88 Km SW of Ancona (100861 inhabitants)
90 Km NE of Viterbo (67173 inhabitants)
101 Km S of Fano (60888 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 0.3 2021-10-22
22:14:00
42.9423 12.9517 8 2021-10-22
22:20:55
Sala Sismica INGV-Roma 96889701
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-22 22:14:00 ± 0.09
Latitude 42.9423 ± 0.0018
Longitude 12.9517 ± 0.0025
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 96889701

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 249
Semi-minor axis of confidence ellipse (meter) 101
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 61
Circular confidence region, given by single value of horizontal uncertainty (meter) 250.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 199
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.08
Epicentral distance of station closest to the epicenter (degree) 0.06205
Epicentral distance of station farthest from the epicenter (degree) 0.23742
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

ML:0.3

Field Value
Value 0.3
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 96889701
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-22 22:20:55
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CSP1.EHZ. 2021-10-22T22:14:09.62 0.1 undecidable manual S 51 26.3514 106 -0.09 95
IV.MML1.EHZ. 2021-10-22T22:14:07.45 0.3 undecidable manual S 5 19.0698 112 0.16 71
IV.NRCA.HNZ. 2021-10-22T22:14:06.96 0.1 undecidable manual S 132 17.871 113 0.05 97
IV.FDMO.HHZ. 2021-10-22T22:14:06.08 0.1 undecidable manual S 46 15.1737 116 0.02 98
IV.CSP1.EHZ. 2021-10-22T22:14:05.47 1.0 undecidable manual P 51 26.3514 106 -0.21 23
IV.MML1.EHZ. 2021-10-22T22:14:04.24 1.0 negative manual P 5 19.0698 112 -0.04 24
IV.NRCA.HNZ. 2021-10-22T22:14:04.03 0.1 undecidable manual P 132 17.871 113 -0.04 97
IV.FDMO.HHZ. 2021-10-22T22:14:03.57 0.6 positive manual P 46 15.1737 116 0 49
IV.CESI.HHZ. 2021-10-22T22:14:03.87 0.1 undecidable manual S 331 7.881 134 -0.1 98
IT.MTCL.HGN. 2021-10-22T22:14:03.73 0.1 undecidable manual S 34 6.8931 137 0 100
IT.MTCL.HGN. 2021-10-22T22:14:02.30 0.1 undecidable manual P 34 6.8931 137 0.07 99
IV.CESI.HHZ. 2021-10-22T22:14:02.40 0.1 undecidable manual P 331 7.881 134 0.03 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:0.3 0.000036445779999999994 0.1152 AML other m 2021-10-22T22:14:04.08
IV.CESI.HHN. ML:0.4 0.000040671073000000004 0.1408 AML other m 2021-10-22T22:14:04.15
IV.FDMO.HHE. ML:0.3 0.000018458135 1.1392 AML other m 2021-10-22T22:14:06.44
IV.FDMO.HHN. ML:0.2 0.0000161893205 1.8048 AML other m 2021-10-22T22:14:06.47
IV.MML1.EHE. ML:0.3 0.000012822679999999999 1.344 AML other m 2021-10-22T22:14:07.60
IV.MML1.EHN. ML:0.4 0.000020927265 1.8176 AML other m 2021-10-22T22:14:08.19
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