Earthquake with magnitude of ML 0.8 on date 01-12-2021 and time 12:19:02 (Italy) in region 4 km NE Sellano (PG)

A magnitude ML 0.8 earthquake occured in region: 4 km NE Sellano (PG), on

  • 01-12-2021 11:19:02 (UTC)
  • 01-12-2021 12:19:02 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9200, 12.9480 at 12 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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 4 1079 1079
Preci PG 9 724 1803
Monte Cavallo MC 9 145 1948
Cerreto di Spoleto PG 11 1075 3023
Visso MC 12 1107 4130
Ussita MC 16 444 4574
Pieve Torina MC 16 1458 6032
Trevi PG 17 8469 14501
Castelsantangelo sul Nera MC 17 281 14782
Serravalle di Chienti MC 17 1070 15852
Fiordimonte MC 18 202 16054
Campello sul Clitunno PG 18 2442 18496
Vallo di Nera PG 18 364 18860
Norcia PG 18 4957 23817
Pievebovigliana MC 20 866 24683
Muccia MC 20 915 25598

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km E of Foligno (57155 inhabitants)
47 Km NE of Terni (111501 inhabitants)
50 Km E of Perugia (166134 inhabitants)
68 Km W of Teramo (54892 inhabitants)
73 Km NW of L'Aquila (69753 inhabitants)
89 Km NE of Viterbo (67173 inhabitants)
90 Km SW of Ancona (100861 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
Bulletin
Rev1000
ML 0.8 2021-12-01
11:19:02
42.9198 12.9478 12 2022-03-30
13:04:35
Bollettino Sismico Italiano INGV 100596131
Reviewed
Rev100
ML 0.8 2021-12-01
11:19:02
42.9185 12.945 11 2021-12-01
11:28:47
Sala Sismica INGV-Roma 98012831
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-01 11:19:02 ± 0.12
Latitude 42.9198 ± 0.0054
Longitude 12.9478 ± 0.0086
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 100596131

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 760
Semi-minor axis of confidence ellipse (meter) 39
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 108
Circular confidence region, given by single value of horizontal uncertainty (meter) 760.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 110
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.25451
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 8
Magnitudes information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 100596131
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-02-04 15:31:04

ML:0.8

Field Value
Value 0.8
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 98012831
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-12-01 11:28:47
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.BRSN.EHZ. 2021-12-01T11:19:19.92 3.0 undecidable manual Sg -1.4 0
IV.ZCCA.HHZ. 2021-12-01T11:19:15.35 3.0 undecidable manual Pg 0.59 0
IV.ARVD.HHZ. 2021-12-01T11:19:14.37 3.0 undecidable manual Sn 0.71 0
IV.ASSB.HHN. 2021-12-01T11:19:12.19 0.6 undecidable manual S 300 27.1506 91 -0.25 47
IV.CSP1.EHN. 2021-12-01T11:19:12.82 0.3 undecidable manual S 47 28.2495 91 0.07 73
IV.MML1.EHZ. 2021-12-01T11:19:10.87 0.3 undecidable manual S 5 21.5673 92 -0.09 73
IV.FDMO.HHZ. 2021-12-01T11:19:09.59 0.1 undecidable manual S 41 17.1717 95 -0.2 96
IV.NRCA.HHZ. 2021-12-01T11:19:09.44 0.6 undecidable manual S 125 16.5723 96 -0.19 49
IV.ASSB.HHN. 2021-12-01T11:19:08.36 0.1 undecidable manual P 300 27.1506 91 0.01 98
IV.CSP1.EHN. 2021-12-01T11:19:08.66 0.1 undecidable manual P 47 28.2495 91 0.14 96
IV.CESI.HHZ. 2021-12-01T11:19:07.85 0.3 undecidable manual S 340 10.0788 122 -0.14 75
IV.GAVE.HNZ. 2021-12-01T11:19:07.82 0.1 undecidable manual P 190 25.6521 92 -0.29 94
IV.MML1.EHZ. 2021-12-01T11:19:07.61 1.0 negative manual P 5 21.5673 92 0.12 24
IT.MTCL.HGZ. 2021-12-01T11:19:07.52 0.3 undecidable manual S 27 9.1797 126 -0.28 73
IV.FDMO.HHZ. 2021-12-01T11:19:06.83 0.1 undecidable manual P 41 17.1717 95 0.01 100
IV.NRCA.HHZ. 2021-12-01T11:19:06.75 0.1 negative manual P 125 16.5723 96 0.03 99
IT.MTCL.HGZ. 2021-12-01T11:19:06.55 0.1 undecidable manual P 27 9.1797 126 0.88 77
IV.PIEI.HHZ. 2021-12-01T11:19:05.67 3.0 positive manual Pg 2.82 0
IV.CESI.HHZ. 2021-12-01T11:19:05.93 0.3 undecidable manual P 340 10.0788 122 0.16 73
IV.FOPC.HGZ. 2021-12-01T11:19:04.42 3.0 undecidable manual P 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:0.7 0.00006205 0.16 AML other m 2021-12-01T11:19:07.98
IV.CESI.HHN. ML:0.9 0.0000968 1.7 AML other m 2021-12-01T11:19:08.06
IV.NRCA.HHN. ML:1.0 0.0000733 0.14 AML other m 2021-12-01T11:19:09.58
IV.NRCA.HHE. ML:0.8 0.00005465 0.66 AML other m 2021-12-01T11:19:11.35
IV.MML1.EHE. ML:0.7 0.000035957545 0.1792 AML other m 2021-12-01T11:19:11.26
IV.MML1.EHN. ML:0.4 0.000017462850000000002 0.5632 AML other m 2021-12-01T11:19:11.31
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