Earthquake with magnitude of ML 0.9 on date 01-12-2021 and time 00:33:11 (UTC) in region 2 km SE Scheggino (PG)

A magnitude ML 0.9 earthquake occured in region: 2 km SE Scheggino (PG), on

  • 01-12-2021 00:33:11 (UTC)
  • 01-12-2021 01:33:11 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7020, 12.8540 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
Scheggino PG 2 461 461
Sant'Anatolia di Narco PG 4 564 1025
Poggiodomo PG 7 117 1142
Vallo di Nera PG 8 364 1506
Monteleone di Spoleto PG 10 599 2105
Spoleto PG 10 38218 40323
Ferentillo TR 10 1913 42236
Polino TR 13 233 42469
Cascia PG 13 3217 45686
Montefranco TR 14 1276 46962
Cerreto di Spoleto PG 14 1075 48037
Campello sul Clitunno PG 15 2442 50479
Arrone TR 15 2763 53242
Leonessa RI 18 2435 55677
Morro Reatino RI 20 373 56050
Labro RI 20 374 56424

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km NE of Terni (111501 inhabitants)
31 Km SE of Foligno (57155 inhabitants)
59 Km SE of Perugia (166134 inhabitants)
59 Km NW of L'Aquila (69753 inhabitants)
69 Km E of Viterbo (67173 inhabitants)
70 Km W of Teramo (54892 inhabitants)
79 Km N of Guidonia Montecelio (88673 inhabitants)
82 Km N of Tivoli (56533 inhabitants)
95 Km NE of Roma (2864731 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 0.9 2021-12-01
00:33:11
42.7022 12.8542 13 2022-03-30
13:04:34
Bollettino Sismico Italiano INGV 100556541
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-01 00:33:11 ± 0.08
Latitude 42.7022 ± 0.0045
Longitude 12.8542 ± 0.0073
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 100556541

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 548
Semi-minor axis of confidence ellipse (meter) 281
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 88
Circular confidence region, given by single value of horizontal uncertainty (meter) 550.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 92
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.41998
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 8
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 100556541
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-02-11 13:42:44
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MILN.HHZ. 2021-12-01T00:34:49.28 3.0 undecidable manual Sg 1.49 0
IV.CAFE.HNZ. 2021-12-01T00:34:20.03 3.0 undecidable manual Sn -2.13 0
IV.MTGR.HHZ. 2021-12-01T00:34:17.48 3.0 positive manual Pn -3.15 0
IV.TREM.HHZ. 2021-12-01T00:34:15.96 3.0 undecidable manual Sn 2.93 0
IV.PAOL.HHZ. 2021-12-01T00:33:52.29 3.0 undecidable manual Pg 7.34 0
IV.MMUR.HNZ. 2021-12-01T00:33:33.75 3.0 undecidable manual Sg -1.1 0
IV.MML1.HNE. 2021-12-01T00:33:26.51 0.3 undecidable manual S 12 46.62 92 0.48 64
IV.ASSB.HHN. 2021-12-01T00:33:24.52 0.6 undecidable manual S 337 40.9257 93 0 47
IV.CESI.HHE. 2021-12-01T00:33:22.74 0.6 undecidable manual S 7 33.8439 94 0.12 47
IV.NRCA.HHZ. 2021-12-01T00:33:20.17 0.3 undecidable manual S 55 25.752 96 -0.29 68
IV.CESX.HHZ. 2021-12-01T00:33:19.71 0.6 undecidable manual S 245 24.1536 97 -0.34 45
IV.MML1.HNE. 2021-12-01T00:33:19.64 0.3 undecidable manual P 12 46.62 92 -0.09 69
IV.ASSB.HHN. 2021-12-01T00:33:18.56 0.6 undecidable manual P 337 40.9257 93 -0.3 44
IV.LNSS.HHZ. 2021-12-01T00:33:18.70 0.1 undecidable manual S 126 18.7701 103 0.08 98
IV.CESI.HHE. 2021-12-01T00:33:17.59 0.1 undecidable manual P 7 33.8439 94 -0.17 92
IV.EL6.EHZ. 2021-12-01T00:33:17.86 3.0 negative manual P -4.15 0
IV.ARRO.EHZ. 2021-12-01T00:33:17.69 0.3 undecidable manual S 208 15.4734 110 -0.08 73
IV.CESX.HHZ. 2021-12-01T00:33:16.70 0.3 undecidable manual P 245 24.1536 97 0.43 67
IV.NRCA.HHZ. 2021-12-01T00:33:16.36 0.1 undecidable manual P 55 25.752 96 -0.15 94
IV.GAVE.EHZ. 2021-12-01T00:33:15.55 0.3 undecidable manual S 109 3.3966 160 0.06 75
IV.LNSS.HHZ. 2021-12-01T00:33:15.48 0.1 undecidable manual P 126 18.7701 103 0.03 98
IV.ARCI.HHZ. 2021-12-01T00:33:14.85 3.0 undecidable manual P -9.99 0
IV.ARRO.EHZ. 2021-12-01T00:33:14.95 0.1 undecidable manual P 208 15.4734 110 -0.01 98
IV.GAVE.EHZ. 2021-12-01T00:33:13.70 0.1 negative manual P 109 3.3966 160 0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GAVE.EHN. ML:0.9 0.00010664999999999999 0.38 AML other m 2021-12-01T00:33:15.61
IV.GAVE.EHE. ML:0.8 0.00009545 0.14 AML other m 2021-12-01T00:33:15.96
IV.LNSS.HNE. ML:1.1 0.00009172448 0.29 AML other m 2021-12-01T00:33:18.85
IV.LNSS.HHE. ML:0.8 0.000050930845 0.18 AML other m 2021-12-01T00:33:18.86
IV.LNSS.HNN. ML:1.3 0.00013871249499999998 0.68 AML other m 2021-12-01T00:33:18.87
IV.LNSS.HHN. ML:0.8 0.00004713484 0.18 AML other m 2021-12-01T00:33:19.42
IV.NRCA.HHN. ML:0.6 0.00002212504 0.16 AML other m 2021-12-01T00:33:20.36
IV.NRCA.HHE. ML:0.7 0.000022777935 0.22 AML other m 2021-12-01T00:33:22.06
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