Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 28-01-2024 and time 18:36:18 (Italy) in region 5 km N Trevi (PG)

A magnitude ML 1.2 earthquake occured in region: 5 km N Trevi (PG), on

  • 28-01-2024 17:36:18 (UTC)
  • 28-01-2024 18:36:18 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9200, 12.7470 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.

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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
Trevi PG 5 8469 8469
Foligno PG 5 57155 65624
Montefalco PG 8 5679 71303
Spello PG 10 8645 79948
Bevagna PG 11 5081 85029
Campello sul Clitunno PG 11 2442 87471
Castel Ritaldi PG 12 3278 90749
Sellano PG 15 1079 91828
Gualdo Cattaneo PG 16 6155 97983
Valtopina PG 16 1398 99381
Cannara PG 16 4305 103686
Giano dell'Umbria PG 17 3846 107532
Cerreto di Spoleto PG 18 1075 108607
Vallo di Nera PG 19 364 108971
Assisi PG 20 28299 137270

Municipalities with at least 50000 inhabitants

An earthquake occurred to
5 Km SE of Foligno (57155 inhabitants)
36 Km SE of Perugia (166134 inhabitants)
41 Km N of Terni (111501 inhabitants)
77 Km NE of Viterbo (67173 inhabitants)
83 Km NW of L'Aquila (69753 inhabitants)
83 Km W of Teramo (54892 inhabitants)
93 Km SE of Arezzo (99543 inhabitants)
100 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
Reviewed
Rev100 		ML 1.2 2024-01-28
17:36:18		 42.9203 12.7467 11 2024-01-28
18:02:58		 Sala Sismica INGV-Roma 124915361
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-01-28 17:36:18
Latitude 42.9203
Longitude 12.7467
Depth (km) 11 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 124915361

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 560.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 122
Number of associated phases, regardless of their use for origin computation 15
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) 0.13850
Epicentral distance of station farthest from the epicenter (degree) 0.44696
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty
Num. used stations 4
Type of magnitude ML
Reference to an origin 124915361
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-01-28 18:02:58
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FDMO.HHZ. 2024-01-28T17:36:29.11 0.3 undecidable manual S 64 30.5472 -0.08 0.95
IV.CESX.HHZ. 2024-01-28T17:36:29.15 0.6 undecidable manual P 207 49.617 0.46 0.89
IV.MML1.EHZ. 2024-01-28T17:36:28.34 0.3 undecidable manual S 40 28.1496 -0.18 0.95
IV.LNSS.HHZ. 2024-01-28T17:36:26.13 1.0 undecidable manual P 161 47.2194 -2.08 0
IV.CSP1.EHZ. 2024-01-28T17:36:26.30 1.0 undecidable manual S 71 29.4483 -2.94 0
IV.MC2.EHZ. 2024-01-28T17:36:25.30 0.6 undecidable manual P 91 36.0417 0.11 0.63
IV.MOMA.HHZ. 2024-01-28T17:36:25.70 0.3 undecidable manual S 229 19.3695 -0.29 0.95
IV.MML1.EHZ. 2024-01-28T17:36:24.06 0.1 undecidable manual P 40 28.1496 0.09 1.26
IV.CESI.HHZ. 2024-01-28T17:36:24.77 0.6 undecidable manual S 53 15.873 -0.17 0.63
IV.FDMO.HHZ. 2024-01-28T17:36:24.42 0.1 undecidable manual P 64 30.5472 0.07 1.26
IV.NRCA.HHZ. 2024-01-28T17:36:24.35 0.3 undecidable manual P 107 31.5462 -0.14 0.95
IV.ASSB.HHZ. 2024-01-28T17:36:24.72 0.3 undecidable manual S 333 15.3735 -0.04 0.95
IV.CESI.HHZ. 2024-01-28T17:36:22.00 0.1 undecidable manual P 53 15.873 0.04 1.26
IV.MOMA.HHZ. 2024-01-28T17:36:22.85 0.3 undecidable manual P 229 19.3695 0.3 0.95
IV.ASSB.HHZ. 2024-01-28T17:36:21.89 0.1 undecidable manual P 333 15.3735 0.03 1.26
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MML1.EHN. ML:0.9 0.000043950000000000004 1.52 AML other m 2024-01-28T17:36:29.01
IV.MML1.EHE. ML:1.0 0.000053200000000000006 0.74 AML other m 2024-01-28T17:36:29.00
IV.ASSB.HHN. ML:1.3 0.000184 0.14 AML other m 2024-01-28T17:36:25.41
IV.ASSB.HHE. ML:1.3 0.0001735 1 AML other m 2024-01-28T17:36:25.74
IV.FDMO.HHN. ML:1.1 0.00005895 0.96 AML other m 2024-01-28T17:36:29.37
IV.FDMO.HHE. ML:1.1 0.000059499999999999996 1.38 AML other m 2024-01-28T17:36:30.53
IV.NRCA.HHN. ML:1.3 0.0000904 0.12 AML other m 2024-01-28T17:36:29.97
IV.NRCA.HHE. ML:1.1 0.000060400000000000004 0.16 AML other m 2024-01-28T17:36:29.42
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