Earthquake with magnitude of ML 0.8 on date 31-07-2024 and time 19:34:10 (Italy) in region 2 km SW Spoleto (PG)

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

  • 31-07-2024 17:34:10 (UTC)
  • 31-07-2024 19:34:10 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7240, 12.7250 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
Spoleto PG 2 38218 38218
Scheggino PG 9 461 38679
Sant'Anatolia di Narco PG 9 564 39243
Campello sul Clitunno PG 12 2442 41685
Castel Ritaldi PG 12 3278 44963
Vallo di Nera PG 12 364 45327
Ferentillo TR 13 1913 47240
Montefranco TR 14 1276 48516
Acquasparta TR 15 4778 53294
Arrone TR 16 2763 56057
Giano dell'Umbria PG 17 3846 59903
Poggiodomo PG 17 117 60020
Trevi PG 17 8469 68489
Massa Martana PG 18 3770 72259
Polino TR 18 233 72492
San Gemini TR 19 5018 77510
Cerreto di Spoleto PG 19 1075 78585
Terni TR 19 111501 190086
Montefalco PG 20 5679 195765

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km NE of Terni (111501 inhabitants)
26 Km S of Foligno (57155 inhabitants)
51 Km SE of Perugia (166134 inhabitants)
61 Km NE of Viterbo (67173 inhabitants)
69 Km NW of L'Aquila (69753 inhabitants)
80 Km N of Guidonia Montecelio (88673 inhabitants)
80 Km W of Teramo (54892 inhabitants)
85 Km N of Tivoli (56533 inhabitants)
94 Km N of Roma (2864731 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 2024-07-31
17:34:10
42.7237 12.7253 10 2024-07-31
18:04:34
Sala Sismica INGV-Roma 130304341
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-07-31 17:34:10 ± 0.06
Latitude 42.7237 ± 0.0045
Longitude 12.7253 ± 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 130304341

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 601
Semi-minor axis of confidence ellipse (meter) 191
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 216
Circular confidence region, given by single value of horizontal uncertainty (meter) 600.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 188
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.11
Epicentral distance of station closest to the epicenter (degree) 0.12770
Epicentral distance of station farthest from the epicenter (degree) 0.41009
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 130304341
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-07-31 18:04:34
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FDMO.HHZ. 2024-07-31T17:34:25.86 0.6 undecidable manual S 40 45.5211 50 0.17 46
IV.ASSB.HHZ. 2024-07-31T17:34:23.05 0.6 undecidable manual S 351 35.8419 50 -0.05 48
IV.NRCA.HHZ. 2024-07-31T17:34:22.45 0.6 undecidable manual S 69 33.9438 50 -0.15 47
IV.LNSS.HNE. 2024-07-31T17:34:21.30 0.6 undecidable manual S 117 28.9488 50 0.02 49
IV.FDMO.HHZ. 2024-07-31T17:34:19.74 1.0 negative manual P 40 45.5211 50 0.33 22
IV.ASSB.HHZ. 2024-07-31T17:34:17.92 0.6 undecidable manual P 351 35.8419 50 0 49
IV.NRCA.HHZ. 2024-07-31T17:34:17.53 0.1 undecidable manual P 69 33.9438 50 -0.1 96
IV.MOMA.HHZ. 2024-07-31T17:34:17.08 0.6 undecidable manual S 305 15.4734 123 -0.14 49
IV.GAVE.EHZ. 2024-07-31T17:34:16.71 0.6 undecidable manual S 104 14.1747 125 -0.14 49
IV.LNSS.HNE. 2024-07-31T17:34:16.85 0.1 undecidable manual P 117 28.9488 50 -0.01 98
IV.MOMA.HHZ. 2024-07-31T17:34:14.57 0.1 undecidable manual P 305 15.4734 123 0.05 100
IV.GAVE.EHZ. 2024-07-31T17:34:14.43 0.1 undecidable manual P 104 14.1747 125 0.12 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GAVE.EHN. ML:1.2 0.000141 0.18 AML other m 2024-07-31T17:34:17.97
IV.MOMA.HHN. ML:0.9 0.00006870000000000002 0.12 AML other m 2024-07-31T17:34:18.09
IV.MOMA.HHE. ML:0.9 0.00008010000000000001 1.22 AML other m 2024-07-31T17:34:18.83
IV.GAVE.EHE. ML:1.3 0.0001825 0.16 AML other m 2024-07-31T17:34:18.59
IV.NRCA.HHN. ML:0.8 0.0000298 0.12 AML other m 2024-07-31T17:34:23.00
IV.ASSB.HHE. ML:0.8 0.000025 0.4 AML other m 2024-07-31T17:34:24.06
IV.ASSB.HHN. ML:0.7 0.000019799999999999997 0.3 AML other m 2024-07-31T17:34:24.82
IV.NRCA.HHE. ML:0.8 0.00002955 0.14 AML other m 2024-07-31T17:34:25.75
IV.FDMO.HHE. ML:0.5 0.0000109218205 0.14 AML other m 2024-07-31T17:34:28.07
IV.FDMO.HHN. ML:0.5 0.000010547777000000001 0.24 AML other m 2024-07-31T17:34:26.38
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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