Earthquake with magnitude of ML 2.0 on date 24-09-2023 and time 13:11:13 (UTC) in region 2 km W Massa Martana (PG)

A magnitude ML 2.0 earthquake occured in region: 2 km W Massa Martana (PG), on

  • 24-09-2023 13:11:13 (UTC)
  • 24-09-2023 15:11:13 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7820, 12.5010 at 8 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
Massa Martana PG 2 3770 3770
Todi PG 8 16851 20621
Giano dell'Umbria PG 9 3846 24467
Acquasparta TR 11 4778 29245
Collazzone PG 14 3473 32718
Fratta Todina PG 14 1839 34557
Monte Castello di Vibio PG 14 1567 36124
Montecastrilli TR 15 5022 41146
Castel Ritaldi PG 15 3278 44424
Gualdo Cattaneo PG 15 6155 50579
Avigliano Umbro TR 15 2558 53137
Montefalco PG 18 5679 58816
San Gemini TR 19 5018 63834
Bevagna PG 19 5081 68915
Marsciano PG 20 18902 87817

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km SW of Foligno (57155 inhabitants)
27 Km NW of Terni (111501 inhabitants)
37 Km S of Perugia (166134 inhabitants)
52 Km NE of Viterbo (67173 inhabitants)
88 Km NW of L'Aquila (69753 inhabitants)
89 Km N of Guidonia Montecelio (88673 inhabitants)
91 Km SE of Arezzo (99543 inhabitants)
94 Km N of Tivoli (56533 inhabitants)
96 Km NE of Civitavecchia (52991 inhabitants)
99 Km N of Roma (2864731 inhabitants)
99 Km W of Teramo (54892 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 2.0 2023-09-24
13:11:13
42.7815 12.5008 8 2023-09-24
13:27:24
Sala Sismica INGV-Roma 121424211
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-09-24 13:11:13 ± 0.12
Latitude 42.7815 ± 0.0090
Longitude 12.5008 ± 0.0061
Depth (km) 8 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 121424211

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1008
Semi-minor axis of confidence ellipse (meter) 517
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 10
Circular confidence region, given by single value of horizontal uncertainty (meter) 1010.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 178
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.63132
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 14
Magnitude information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.4
Num. used stations 8
Type of magnitude ML
Reference to an origin 121424211
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-09-24 13:27:24
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.RESU.HHZ. 2023-09-24T13:12:43.32 3.0 undecidable manual Pg 17.51 0
IV.MMO1.HNZ. 2023-09-24T13:11:35.43 0.6 undecidable manual S 79 68.4759 50 0.38 47
IV.RM33.HNE. 2023-09-24T13:11:34.74 0.6 undecidable manual S 117 65.5899 50 0.44 47
7F.SIB2.EHN. 2023-09-24T13:11:34.66 0.6 undecidable manual S 79 66.4779 50 0.14 50
IV.CSP1.EHZ. 2023-09-24T13:11:34.89 0.6 undecidable manual S 59 66.6777 50 0.29 48
7F.SIB1.EHZ. 2023-09-24T13:11:33.75 0.6 undecidable manual S 78 63.7917 50 -0.07 51
IV.MGAB.HHZ. 2023-09-24T13:11:26.26 0.6 undecidable manual S 295 34.8429 50 0.19 52
IV.SMA1.EHE. 2023-09-24T13:11:26.28 0.3 undecidable manual P 104 70.0743 50 0.01 76
7F.SIB2.EHN. 2023-09-24T13:11:25.27 1.0 undecidable manual P 79 66.4779 50 -0.44 23
7F.SIB1.EHZ. 2023-09-24T13:11:25.14 0.1 undecidable manual P 78 63.7917 50 -0.17 99
IV.CSP1.EHZ. 2023-09-24T13:11:25.29 1.0 negative manual P 59 66.6777 50 -0.47 23
IV.RM33.HNE. 2023-09-24T13:11:25.48 0.1 undecidable manual P 117 65.5899 50 -0.11 100
IV.MMO1.HNZ. 2023-09-24T13:11:25.85 1.0 undecidable manual P 79 68.4759 50 -0.17 25
7F.SIB3.EHN. 2023-09-24T13:11:24.99 0.6 undecidable manual P 80 63.3921 50 -0.26 49
IV.MC2.EHN. 2023-09-24T13:11:24.27 0.6 undecidable manual P 75 57.7977 50 -0.11 51
IV.MML1.EHZ. 2023-09-24T13:11:23.51 1.0 negative manual P 46 53.1024 50 -0.14 25
IV.FDMO.HHZ. 2023-09-24T13:11:23.84 1.0 negative manual P 59 55.4001 50 -0.17 25
IV.LNSS.HHZ. 2023-09-24T13:11:22.77 3.0 negative manual P 1.23 0
IV.NRCA.HHZ. 2023-09-24T13:11:22.93 0.6 undecidable manual P 83 50.2164 50 -0.29 50
IV.MGAB.HHZ. 2023-09-24T13:11:20.87 1.0 undecidable manual P 295 34.8429 50 0.03 27
IV.MOMA.HHZ. 2023-09-24T13:11:17.09 0.6 undecidable manual S 66 6.1938 143 -0.15 55
IT.GNU.HGZ. 2023-09-24T13:11:16.22 0.6 undecidable manual P 66 6.1938 143 0.48 51
IV.MOMA.HHZ. 2023-09-24T13:11:15.90 0.6 undecidable manual P 66 6.1938 143 0.16 55
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MOMA.HHN. ML:2.0 0.00175 0.2 AML other m 2023-09-24T13:11:17.46
IV.MOMA.HNN. ML:1.8 0.001295 0.2 AML other m 2023-09-24T13:11:17.47
IV.MOMA.HNE. ML:2.1 0.002235 0.56 AML other m 2023-09-24T13:11:17.46
IV.MOMA.HHE. ML:2.0 0.0019199999999999998 1.18 AML other m 2023-09-24T13:11:17.16
IV.MGAB.HHN. ML:1.5 0.000122 0.26 AML other m 2023-09-24T13:11:27.24
IV.MGAB.HHE. ML:1.6 0.0001615 0.48 AML other m 2023-09-24T13:11:27.59
IV.TOLF.HHE. ML:3.1 0.0014 0.14 AML other m 2023-09-24T13:11:32.45
IV.TOLF.HHN. ML:2.4 0.00032799999999999995 0.04 AML other m 2023-09-24T13:11:33.70
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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