Earthquake with magnitude of ML 1.2 on date 19-12-2021 and time 06:58:49 (Italy) in region 9 km E Foligno (PG)

A magnitude ML 1.2 earthquake occured in region: 9 km E Foligno (PG), on

  • 19-12-2021 05:58:49 (UTC)
  • 19-12-2021 06:58:49 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9470, 12.8140 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
Foligno PG 9 57155 57155
Trevi PG 9 8469 65624
Sellano PG 11 1079 66703
Spello PG 13 8645 75348
Valtopina PG 13 1398 76746
Montefalco PG 14 5679 82425
Campello sul Clitunno PG 14 2442 84867
Monte Cavallo MC 16 145 85012
Cerreto di Spoleto PG 16 1075 86087
Bevagna PG 17 5081 91168
Castel Ritaldi PG 18 3278 94446
Serravalle di Chienti MC 18 1070 95516
Nocera Umbra PG 18 5839 101355
Cannara PG 20 4305 105660
Preci PG 20 724 106384
Vallo di Nera PG 20 364 106748

Municipalities with at least 50000 inhabitants

An earthquake occurred to
9 Km E of Foligno (57155 inhabitants)
39 Km E of Perugia (166134 inhabitants)
45 Km NE of Terni (111501 inhabitants)
79 Km W of Teramo (54892 inhabitants)
82 Km NW of L'Aquila (69753 inhabitants)
83 Km NE of Viterbo (67173 inhabitants)
94 Km SW of Ancona (100861 inhabitants)
95 Km SE of Arezzo (99543 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 1.2 2021-12-19
05:58:49
42.947 12.8142 8 2021-12-19
06:27:15
Sala Sismica INGV-Roma 98713751
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-19 05:58:49 ± 0.05
Latitude 42.9470 ± 0.0027
Longitude 12.8142 ± 0.0025
Depth (km) 8 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 98713751

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 331
Semi-minor axis of confidence ellipse (meter) 90
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 210
Circular confidence region, given by single value of horizontal uncertainty (meter) 330.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 193
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 8
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.32016
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 4
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 98713751
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-12-19 06:27:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PTRJ.HHZ. 2021-12-19T05:59:25.30 3.0 undecidable manual Pg 3.17 0
IV.CSP1.EHZ. 2021-12-19T05:59:02.24 0.1 undecidable manual S 63 35.5422 50 0.02 96
IV.PE3.EHZ. 2021-12-19T05:59:02.30 3.0 positive manual P 0.09 0
IV.NRCA.HHZ. 2021-12-19T05:58:59.53 0.1 undecidable manual S 117 27.4503 107 -0.03 97
IV.CSP1.EHZ. 2021-12-19T05:58:56.68 1.0 positive manual P 63 35.5422 50 -0.22 23
IV.NRCA.HHZ. 2021-12-19T05:58:55.38 0.1 negative manual P 117 27.4503 107 0.02 97
IV.ASSB.HHZ. 2021-12-19T05:58:55.96 0.1 undecidable manual S 310 16.4724 116 -0.05 99
IV.CESI.HHZ. 2021-12-19T05:58:54.00 0.1 undecidable manual S 49 9.7791 130 -0.04 100
IV.ASSB.HHZ. 2021-12-19T05:58:53.35 0.1 undecidable manual P 310 16.4724 116 0.04 99
IV.CESI.HHZ. 2021-12-19T05:58:52.27 0.1 negative manual P 49 9.7791 130 0.09 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:0.8 0.00008285000000000001 1.64 AML other m 2021-12-19T05:58:53.11
IV.CESI.HHN. ML:0.8 0.0000791 0.18 AML other m 2021-12-19T05:58:54.16
IV.SSFR.HHE. ML:1.2 0.0000421 1.38 AML other m 2021-12-19T05:59:00.05
IV.FRON.EHE. ML:1.4 0.0000505 0.12 AML other m 2021-12-19T05:59:00.85
IV.SSFR.HHN. ML:1.3 0.00004265 0.66 AML other m 2021-12-19T05:59:01.49
IV.FRON.EHN. ML:1.4 0.00004765 0.3 AML other m 2021-12-19T05:59:01.24
IV.MPAG.EHE. ML:1.1 0.0000212 0.42 AML other m 2021-12-19T05:59:12.60
IV.MPAG.EHN. ML:1.2 0.000026299999999999996 0.42 AML other m 2021-12-19T05:59:14.45
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