Earthquake with magnitude of ML 1.3 on date 01-12-2021 and time 12:22:56 (UTC) in region 1 km W Foligno (PG)

A magnitude ML 1.3 earthquake occured in region: 1 km W Foligno (PG), on

  • 01-12-2021 12:22:56 (UTC)
  • 01-12-2021 13:22:56 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.954, 12.697 at 10 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 1 57155 57155
Spello PG 5 8645 65800
Bevagna PG 7 5081 70881
Montefalco PG 8 5679 76560
Trevi PG 10 8469 85029
Cannara PG 10 4305 89334
Gualdo Cattaneo PG 12 6155 95489
Valtopina PG 13 1398 96887
Assisi PG 15 28299 125186
Castel Ritaldi PG 15 3278 128464
Campello sul Clitunno PG 16 2442 130906
Giano dell'Umbria PG 16 3846 134752
Bastia Umbra PG 17 21874 156626
Bettona PG 18 4367 160993
Nocera Umbra PG 19 5839 166832

Municipalities with at least 50000 inhabitants

An earthquake occurred to
1 Km W of Foligno (57155 inhabitants)
30 Km SE of Perugia (166134 inhabitants)
44 Km N of Terni (111501 inhabitants)
77 Km NE of Viterbo (67173 inhabitants)
87 Km SE of Arezzo (99543 inhabitants)
88 Km NW of L'Aquila (69753 inhabitants)
89 Km W of Teramo (54892 inhabitants)
99 Km SW of Ancona (100861 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web questionnaire

This map shows the distribution of earthquake resentment in the area, expressed in terms of intensity on the MCS scale (Mercalli-Cancani-Sieberg). Intensities are determined using data from questionnaires collected on the website http://www.hsit.it. The intensities shown are determined considering all the reports received from each municipality, and are all the more reliable the greater the number of questionnaires. The collected data are subjected to an automatic statistical filter, but are not checked individually. In particular, intensities greater than or equal to the VI degree of the MCS or EMS scale require on-site verification by specialized personnel. The black star is the epicenter of the earthquake that occurred. This map is updated every time citizens fill out new questionnaires. The number of questionnaires processed to obtain this map, the date and time of the last update are shown at the top right.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.3 2021-12-01
12:22:56
42.9542 12.6967 10 2021-12-01
12:28:33
Sala Sismica INGV-Roma 98014201
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-01 12:22:56 ± 0.06
Latitude 42.9542 ± 0.0036
Longitude 12.6967 ± 0.0061
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 98014201

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 468
Semi-minor axis of confidence ellipse (meter) 348
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 292
Circular confidence region, given by single value of horizontal uncertainty (meter) 470
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 131
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.43257
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 98014201
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-12-01 12:28:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CSP1.EHZ. 2021-12-01T12:23:11.70 0.3 undecidable manual S 69 0.3957 50 0.42 64
IV.NRCA.HHZ. 2021-12-01T12:23:09.07 0.6 undecidable manual S 111 0.3283 50 -0.22 46
IV.MTL1.HNZ. 2021-12-01T12:23:08.14 3.0 undecidable manual S -2.16 0
IV.GAVE.EHZ. 2021-12-01T12:23:08.54 0.6 undecidable manual S 151 0.2995 50 0.13 47
IV.FDMO.HHZ. 2021-12-01T12:23:08.39 0.6 undecidable manual S 74 0.2968 50 0.04 47
IV.ATCC.EHZ. 2021-12-01T12:23:06.59 0.6 undecidable manual S 350 0.2347 111 0.14 47
IV.MML1.EHZ. 2021-12-01T12:23:06.87 0.3 undecidable manual S 52 0.2563 50 -0.27 68
IV.CSP1.EHZ. 2021-12-01T12:23:05.24 1.0 negative manual P 69 0.3957 50 0.08 23
IV.LNSS.HHZ. 2021-12-01T12:23:05.74 0.3 negative manual P 144 0.4326 50 -0.04 69
IV.CESI.HHZ. 2021-12-01T12:23:04.05 0.1 undecidable manual S 71 0.1601 119 0.2 94
IV.MOMA.HHZ. 2021-12-01T12:23:04.51 0.6 undecidable manual S 212 0.1763 117 0.11 48
IV.FDMO.HHZ. 2021-12-01T12:23:03.37 0.1 undecidable manual P 74 0.2968 50 -0.1 94
IV.NRCA.HHZ. 2021-12-01T12:23:03.89 0.1 negative manual P 111 0.3283 50 -0.12 93
IV.GAVE.EHZ. 2021-12-01T12:23:03.48 0.1 undecidable manual P 151 0.2995 50 -0.03 95
IV.ATCC.EHZ. 2021-12-01T12:23:02.39 0.1 undecidable manual P 350 0.2347 111 0.01 97
IV.MML1.EHZ. 2021-12-01T12:23:02.62 0.1 undecidable manual P 52 0.2563 50 -0.15 94
IV.ASSB.HHZ. 2021-12-01T12:23:01.71 0.6 undecidable manual S 343 0.0926 134 -0.02 50
IV.MOMA.HHZ. 2021-12-01T12:23:01.48 0.6 negative manual P 212 0.1763 117 0.29 46
IV.CESI.HHZ. 2021-12-01T12:23:00.96 0.1 undecidable manual P 71 0.1601 119 0.09 97
IV.ASSB.HHZ. 2021-12-01T12:22:59.82 0.1 positive manual P 343 0.0926 134 0.17 96
IT.FOPC.HGZ. 2021-12-01T12:22:59.77 0.3 undecidable manual S 17 0.0162 170 -0.49 68
IT.FOPC.HGZ. 2021-12-01T12:22:58.75 0.1 negative manual P 17 0.0162 170 -0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ASSB.HHN. ML:1.7 0.0006085 1.04 AML other m 2021-12-01T12:23:01.36
IV.ASSB.HHE. ML:1.7 0.000671 0.2 AML other m 2021-12-01T12:23:02.26
IV.CESI.HHN. ML:1.2 0.0001405 1.32 AML other m 2021-12-01T12:23:04.82
IV.CESI.HHE. ML:1.1 9.41E-5 0.94 AML other m 2021-12-01T12:23:04.23
IV.MOMA.HHE. ML:1.4 0.000197 0.74 AML other m 2021-12-01T12:23:05.48
IV.MOMA.HHN. ML:1.4 0.0001735 0.42 AML other m 2021-12-01T12:23:06.44
IV.MML1.EHN. ML:1.3 9.58E-5 0.36 AML other m 2021-12-01T12:23:07.48
IV.MML1.EHE. ML:1.1 7.04E-5 0.24 AML other m 2021-12-01T12:23:07.80
IV.GAVE.EHN. ML:1.4 0.0001205 0.46 AML other m 2021-12-01T12:23:08.42
IV.GAVE.EHE. ML:1.5 0.0001475 1.06 AML other m 2021-12-01T12:23:09.30
IV.NRCA.HHN. ML:1.3 6.8E-5 0.12 AML other m 2021-12-01T12:23:10.34
IV.NRCA.HHE. ML:1.2 6.135E-5 0.68 AML other m 2021-12-01T12:23:10.75
IT.FOPC.HGE. ML:0 0.13460174 0.0704 AML other m 2021-12-01T12:22:59.84
IT.FOPC.HGN. ML:0 0.1227393 0.0512 AML other m 2021-12-01T12:22:59.91
IV.ATCC.HNE. ML:1.3 0.00012272285 0.2688 AML other m 2021-12-01T12:23:08.74
IV.ATCC.HNN. ML:1.3 0.00011736905 0.4416 AML other m 2021-12-01T12:23:07.25
IV.FDMO.HHE. ML:0.8 2.9043195E-5 0.224 AML other m 2021-12-01T12:23:09.13
IV.FDMO.HHN. ML:0.8 2.539405E-5 0.2176 AML other m 2021-12-01T12:23:11.33
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