Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 15-01-2024 and time 21:42:54 (UTC) in region 1 km W Montefalco (PG)

A magnitude ML 1.2 earthquake occured in region: 1 km W Montefalco (PG), on

  • 15-01-2024 21:42:54 (UTC)
  • 15-01-2024 22:42:54 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8930, 12.6420 at 9 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Montefalco PG 1 5679 5679
Bevagna PG 5 5081 10760
Gualdo Cattaneo PG 7 6155 16915
Castel Ritaldi PG 8 3278 20193
Giano dell'Umbria PG 8 3846 24039
Foligno PG 9 57155 81194
Trevi PG 9 8469 89663
Spello PG 12 8645 98308
Cannara PG 12 4305 102613
Campello sul Clitunno PG 14 2442 105055
Massa Martana PG 16 3770 108825
Collazzone PG 17 3473 112298
Bettona PG 19 4367 116665
Spoleto PG 19 38218 154883
Assisi PG 20 28299 183182

Municipalities with at least 50000 inhabitants

An earthquake occurred to
9 Km SW of Foligno (57155 inhabitants)
32 Km SE of Perugia (166134 inhabitants)
37 Km N of Terni (111501 inhabitants)
69 Km NE of Viterbo (67173 inhabitants)
86 Km NW of L'Aquila (69753 inhabitants)
89 Km SE of Arezzo (99543 inhabitants)
91 Km W of Teramo (54892 inhabitants)
99 Km N of Guidonia Montecelio (88673 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 2024-01-15
21:42:54		 42.8928 12.642 9 2024-01-15
21:46:49		 Sala Sismica INGV-Roma 124667451
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-01-15 21:42:54 ± 0.09
Latitude 42.8928 ± 0.0036
Longitude 12.6420 ± 0.0061
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 124667451

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 530
Semi-minor axis of confidence ellipse (meter) 320
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 91
Circular confidence region, given by single value of horizontal uncertainty (meter) 530.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 172
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.41099
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.1
Num. used stations 8
Type of magnitude ML
Reference to an origin 124667451
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-01-15 21:46:49
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CPGN.HNZ. 2024-01-15T21:43:12.30 3.0 negative manual P 0.16 0
IV.FOSV.EHZ. 2024-01-15T21:43:09.77 0.6 undecidable manual S 12 45.621 50 0.54 43
IV.FDMO.HHZ. 2024-01-15T21:43:07.58 0.3 undecidable manual S 66 39.5271 50 -0.03 72
IV.MML1.EHZ. 2024-01-15T21:43:06.63 0.6 undecidable manual S 47 36.2415 50 -0.1 48
IV.CESX.HHZ. 2024-01-15T21:43:05.67 0.6 undecidable manual S 188 31.8459 50 0.11 48
IV.ATCC.EHZ. 2024-01-15T21:43:05.51 0.3 undecidable manual S 360 32.4453 50 -0.21 71
IV.CESI.HHZ. 2024-01-15T21:43:03.26 0.6 undecidable manual S 60 24.6531 110 -0.06 49
IV.FOSV.EHZ. 2024-01-15T21:43:02.93 0.6 positive manual P 12 45.621 50 0.06 47
IV.NRCA.HHZ. 2024-01-15T21:43:01.75 0.1 negative manual P 100 38.9277 50 -0.1 95
IV.FDMO.HHZ. 2024-01-15T21:43:01.93 0.6 positive manual P 66 39.5271 50 0 49
IV.MML1.EHZ. 2024-01-15T21:43:01.53 0.6 negative manual P 47 36.2415 50 0.1 48
IV.ATCC.EHZ. 2024-01-15T21:43:00.53 1.0 negative manual P 360 32.4453 50 -0.31 23
IV.ASSB.HHZ. 2024-01-15T21:43:00.65 0.6 undecidable manual S 5 16.6722 119 -0.13 49
IV.CESX.HHZ. 2024-01-15T21:43:00.54 1.0 positive manual P 188 31.8459 50 -0.22 24
IV.CESI.HHZ. 2024-01-15T21:42:59.56 0.1 undecidable manual P 60 24.6531 110 0.11 97
IV.ASSB.HHZ. 2024-01-15T21:42:58.04 0.1 positive manual P 5 16.6722 119 0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ASSB.HHN. ML:1.2 0.000128 1.5 AML other m 2024-01-15T21:43:01.07
IV.ASSB.HHE. ML:1.2 0.00014549999999999999 0.18 AML other m 2024-01-15T21:43:03.59
IV.CESI.HHN. ML:1.3 0.0001215 0.24 AML other m 2024-01-15T21:43:04.87
IV.CESI.HHE. ML:1.1 0.00007225000000000001 1.2 AML other m 2024-01-15T21:43:05.86
IV.FDMO.HHE. ML:1.1 0.00004265 0.84 AML other m 2024-01-15T21:43:08.35
IV.NRCA.HHN. ML:1.3 0.00006544999999999999 0.1 AML other m 2024-01-15T21:43:08.67
IV.FDMO.HHN. ML:1.1 0.00004145 1.12 AML other m 2024-01-15T21:43:09.20
IV.NRCA.HHE. ML:1.3 0.0000702 0.4 AML other m 2024-01-15T21:43:10.23
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