Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.8 on date 25-02-2024 and time 03:21:56 (UTC) in region 2 km E Cascia (PG)

A magnitude ML 0.8 earthquake occured in region: 2 km E Cascia (PG), on

  • 25-02-2024 03:21:56 (UTC)
  • 25-02-2024 04:21:56 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7220, 13.0420 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
Cascia PG 2 3217 3217
Poggiodomo PG 9 117 3334
Norcia PG 9 4957 8291
Monteleone di Spoleto PG 11 599 8890
Cerreto di Spoleto PG 15 1075 9965
Cittareale RI 15 482 10447
Vallo di Nera PG 16 364 10811
Sant'Anatolia di Narco PG 17 564 11375
Accumoli RI 17 667 12042
Scheggino PG 17 461 12503
Preci PG 18 724 13227
Leonessa RI 19 2435 15662

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km E of Terni (111501 inhabitants)
38 Km SE of Foligno (57155 inhabitants)
50 Km NW of L'Aquila (69753 inhabitants)
55 Km W of Teramo (54892 inhabitants)
68 Km SE of Perugia (166134 inhabitants)
84 Km E of Viterbo (67173 inhabitants)
84 Km NE of Guidonia Montecelio (88673 inhabitants)
87 Km N of Tivoli (56533 inhabitants)
94 Km W of Montesilvano (53738 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 0.8 2024-02-25
03:21:56		 42.7218 13.0425 10 2024-02-25
03:30:38		 Sala Sismica INGV-Roma 125531781
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-02-25 03:21:56 ± 0.06
Latitude 42.7218 ± 0.0027
Longitude 13.0425 ± 0.0049
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 125531781

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 400
Semi-minor axis of confidence ellipse (meter) 264
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 293
Circular confidence region, given by single value of horizontal uncertainty (meter) 400.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 74
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0.11331
Epicentral distance of station farthest from the epicenter (degree) 0.27339
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 125531781
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-02-25 03:30:38
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MC2.EHE. 2024-02-25T03:22:05.63 0.6 undecidable manual S 29 24.1536 112 0.14 48
7F.SIB3.EHZ. 2024-02-25T03:22:05.31 0.6 undecidable manual S 47 25.1526 111 -0.5 45
IV.NRCA.HHZ. 2024-02-25T03:22:02.33 0.6 undecidable manual S 25 13.6752 126 0.04 50
7F.SIB1.HNN. 2024-02-25T03:22:02.12 0.1 undecidable manual P 44 26.6511 50 0 99
IV.MMO1.EHZ. 2024-02-25T03:22:02.76 0.6 positive manual P 49 30.3474 50 0.07 48
IV.LNSS.HHZ. 2024-02-25T03:22:02.06 0.6 undecidable manual S 181 13.1757 127 -0.09 50
ZO.PDN12.EHE. 2024-02-25T03:22:02.52 0.6 undecidable manual S 317 14.9739 123 -0.14 49
IV.SMA1.EHZ. 2024-02-25T03:22:02.20 1.0 undecidable manual P 113 25.9518 111 0.21 24
7F.SIB2.EHZ. 2024-02-25T03:22:02.26 0.1 undecidable manual P 48 28.3494 50 -0.12 96
IV.RM33.EHZ. 2024-02-25T03:22:02.17 0.6 undecidable manual P 149 27.4503 50 -0.07 49
7F.SIB3.EHZ. 2024-02-25T03:22:01.79 0.1 undecidable manual P 47 25.1526 111 -0.05 98
IV.GAVE.EHE. 2024-02-25T03:22:01.61 0.6 undecidable manual S 255 12.5763 128 -0.36 47
IV.MC2.EHE. 2024-02-25T03:22:01.69 0.1 undecidable manual P 29 24.1536 112 0.03 99
IV.NRCA.HHZ. 2024-02-25T03:22:00.03 0.1 undecidable manual P 25 13.6752 126 0.21 97
ZO.PDN12.EHE. 2024-02-25T03:22:00.15 0.1 undecidable manual P 317 14.9739 123 0.12 99
IV.LNSS.HHZ. 2024-02-25T03:21:59.84 0.1 undecidable manual P 181 13.1757 127 0.11 99
IV.GAVE.EHE. 2024-02-25T03:21:59.70 0.1 undecidable manual P 255 12.5763 128 0.07 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LNSS.HHN. ML:0.8 0.0000737 1.18 AML other m 2024-02-25T03:22:02.20
IV.LNSS.HHE. ML:0.9 0.0000886 0.12 AML other m 2024-02-25T03:22:02.19
IV.NRCA.HHE. ML:0.6 0.0000415 0.82 AML other m 2024-02-25T03:22:02.37
IV.NRCA.HHN. ML:0.6 0.000043349999999999997 0.44 AML other m 2024-02-25T03:22:03.39
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