Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.7 on date 28-01-2024 and time 14:00:50 (Italy) in region 4 km NE Castel Ritaldi (PG)

A magnitude ML 0.7 earthquake occured in region: 4 km NE Castel Ritaldi (PG), on

  • 28-01-2024 13:00:50 (UTC)
  • 28-01-2024 14:00:50 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8570, 12.7020 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
Castel Ritaldi PG 4 3278 3278
Trevi PG 4 8469 11747
Montefalco PG 6 5679 17426
Campello sul Clitunno PG 7 2442 19868
Giano dell'Umbria PG 10 3846 23714
Foligno PG 11 57155 80869
Bevagna PG 11 5081 85950
Gualdo Cattaneo PG 13 6155 92105
Spoleto PG 14 38218 130323
Spello PG 15 8645 138968
Vallo di Nera PG 16 364 139332
Massa Martana PG 17 3770 143102
Sant'Anatolia di Narco PG 18 564 143666
Cerreto di Spoleto PG 18 1075 144741
Cannara PG 18 4305 149046
Sellano PG 19 1079 150125
Scheggino PG 19 461 150586

Municipalities with at least 50000 inhabitants

An earthquake occurred to
11 Km S of Foligno (57155 inhabitants)
33 Km N of Terni (111501 inhabitants)
38 Km SE of Perugia (166134 inhabitants)
69 Km NE of Viterbo (67173 inhabitants)
80 Km NW of L'Aquila (69753 inhabitants)
85 Km W of Teramo (54892 inhabitants)
95 Km SE of Arezzo (99543 inhabitants)
95 Km N of Guidonia Montecelio (88673 inhabitants)
100 Km N of Tivoli (56533 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 0.7 2024-01-28
13:00:50		 42.8573 12.7022 9 2024-01-28
13:12:20		 Sala Sismica INGV-Roma 124909451
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-01-28 13:00:50 ± 0.06
Latitude 42.8573 ± 0.0036
Longitude 12.7022 ± 0.0061
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 124909451

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 495
Semi-minor axis of confidence ellipse (meter) 335
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 285
Circular confidence region, given by single value of horizontal uncertainty (meter) 490.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 109
Number of associated phases, regardless of their use for origin computation 30
Number of defining phases 13
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) 0.43617
Number of stations at which the event was observed 24
Number of stations from which data was used for origin computation 8
Magnitude information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 124909451
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-01-28 13:12:20
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.BURY.HHZ. 2024-01-28T13:02:42.13 3.0 undecidable manual Sg 19.42 0
IV.GRIS.EHZ. 2024-01-28T13:02:36.55 3.0 undecidable manual Sn 2.29 0
IV.QLNO.HHZ. 2024-01-28T13:02:15.50 3.0 undecidable manual Sn 2.31 0
IV.MDI.HHZ. 2024-01-28T13:02:13.28 3.0 undecidable manual Sn -3.34 0
IV.PTCC.HHZ. 2024-01-28T13:02:12.62 3.0 undecidable manual Sn -5.91 0
TV.SU26.HHZ. 2024-01-28T13:02:11.41 3.0 undecidable manual Pg 14.02 0
IV.SPS2.HHZ. 2024-01-28T13:02:06.10 3.0 positive manual Pg 11 0
2Y.A301A.HHZ. 2024-01-28T13:01:57.75 3.0 undecidable manual Sn -0.11 0
OT.OT05.EHZ. 2024-01-28T13:01:55.58 3.0 undecidable manual Sn -3.37 0
SI.ROSI.HHZ. 2024-01-28T13:01:42.66 3.0 undecidable manual Pn -2.8 0
IV.PTRJ.HHZ. 2024-01-28T13:01:30.10 3.0 negative manual Pg 9.07 0
IV.PAOL.HHZ. 2024-01-28T13:01:22.31 3.0 undecidable manual Pn -2.45 0
IV.BDI.HHZ. 2024-01-28T13:01:13.74 3.0 positive manual Pn -0.34 0
IV.MTRA.HNZ. 2024-01-28T13:01:13.59 3.0 undecidable manual Sg 2.22 0
IV.CSP1.EHZ. 2024-01-28T13:01:06.05 0.3 undecidable manual S 57 48.4182 50 0.11 70
IV.CSNT.HHZ. 2024-01-28T13:01:04.12 3.0 undecidable manual P 0.28 0
IV.NRCA.HHZ. 2024-01-28T13:01:01.87 0.3 undecidable manual S 94 33.6441 50 -0.13 72
IV.MTRA.HNZ. 2024-01-28T13:01:00.01 3.0 undecidable manual P -0.46 0
IV.SMA1.EHZ. 2024-01-28T13:01:00.92 3.0 positive manual P 0.33 0
IV.CSP1.EHZ. 2024-01-28T13:00:59.40 0.3 undecidable manual P 57 48.4182 50 0.13 70
IV.CESI.HHZ. 2024-01-28T13:00:58.73 0.6 undecidable manual S 45 23.1546 112 -0.08 49
IV.ASSB.HHZ. 2024-01-28T13:00:57.97 0.3 undecidable manual S 350 20.868 114 -0.09 74
IV.MML1.EHE. 2024-01-28T13:00:57.55 0.6 undecidable manual P 37 35.8419 50 0.21 47
IV.FDMO.HHE. 2024-01-28T13:00:57.31 0.6 undecidable manual P 57 37.0296 50 -0.21 47
IV.NRCA.HHZ. 2024-01-28T13:00:56.79 0.3 undecidable manual P 94 33.6441 50 -0.2 71
IV.GAVE.EHE. 2024-01-28T13:00:55.39 0.3 undecidable manual P 139 24.0537 111 0.08 74
IV.CESI.HHZ. 2024-01-28T13:00:55.35 0.6 undecidable manual P 45 23.1546 112 0.2 48
IV.MOMA.HHZ. 2024-01-28T13:00:55.34 0.1 undecidable manual S 241 12.2766 127 -0.13 99
IV.ASSB.HHZ. 2024-01-28T13:00:54.69 0.1 undecidable manual P 350 20.868 114 -0.02 100
IV.MOMA.HHZ. 2024-01-28T13:00:53.40 0.1 undecidable manual P 241 12.2766 127 0.18 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MOMA.HHE. ML:0.9 0.0001022 0.16 AML other m 2024-01-28T13:00:55.91
IV.MOMA.HHN. ML:0.9 0.00010105 0.14 AML other m 2024-01-28T13:00:56.36
IV.ASSB.HHE. ML:0.4 0.00001786837 0.1984 AML other m 2024-01-28T13:01:00.32
IV.ASSB.HHN. ML:0.3 0.0000166250765 0.1024 AML other m 2024-01-28T13:00:59.09
IV.CESI.HHE. ML:0.6 0.00002301769 1.024 AML other m 2024-01-28T13:00:59.88
IV.CESI.HHN. ML:0.6 0.00002594033 0.1792 AML other m 2024-01-28T13:00:58.96
IV.NRCA.HHE. ML:0.8 0.000026641325 0.16 AML other m 2024-01-28T13:01:04.12
IV.NRCA.HHN. ML:0.7 0.0000202067455 0.1216 AML other m 2024-01-28T13:01:02.09
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