Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 25-03-2023 and time 01:57:40 (UTC) in region 5 km NW Massa Martana (PG)

A magnitude ML 1.5 earthquake occured in region: 5 km NW Massa Martana (PG), on

  • 25-03-2023 01:57:40 (UTC)
  • 25-03-2023 02:57:40 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8150, 12.4940 at 8 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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
Massa Martana PG 5 3770 3770
Giano dell'Umbria PG 7 3846 7616
Todi PG 8 16851 24467
Collazzone PG 10 3473 27940
Fratta Todina PG 11 1839 29779
Gualdo Cattaneo PG 12 6155 35934
Monte Castello di Vibio PG 12 1567 37501
Acquasparta TR 14 4778 42279
Castel Ritaldi PG 15 3278 45557
Montefalco PG 16 5679 51236
Bevagna PG 16 5081 56317
Marsciano PG 17 18902 75219
Montecastrilli TR 18 5022 80241
Avigliano Umbro TR 19 2558 82799
San Venanzo TR 20 2218 85017
Deruta PG 20 9669 94686

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km SW of Foligno (57155 inhabitants)
31 Km NW of Terni (111501 inhabitants)
34 Km S of Perugia (166134 inhabitants)
54 Km NE of Viterbo (67173 inhabitants)
88 Km SE of Arezzo (99543 inhabitants)
90 Km NW of L'Aquila (69753 inhabitants)
93 Km N of Guidonia Montecelio (88673 inhabitants)
98 Km N of Tivoli (56533 inhabitants)
99 Km NE of Civitavecchia (52991 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
Bulletin
Rev1000 		ML 1.5 2023-03-25
01:57:40		 42.8152 12.4945 8 2024-03-01
17:18:00		 Bollettino Sismico Italiano INGV 115725401
Reviewed
Rev100 		ML 1.5 2023-03-25
01:57:40		 42.8183 12.498 9 2023-03-25
02:03:13		 Sala Sismica INGV-Roma 115708091
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-03-25 01:57:40 ± 0.04
Latitude 42.8152 ± 0.0018
Longitude 12.4945 ± 0.0025
Depth (km) 8 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 115725401

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 163
Semi-minor axis of confidence ellipse (meter) 158
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 214
Circular confidence region, given by single value of horizontal uncertainty (meter) 160.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 39
Number of associated phases, regardless of their use for origin computation 98
Number of defining phases 98
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.05666
Epicentral distance of station farthest from the epicenter (degree) 0.75813
Number of stations at which the event was observed 49
Number of stations from which data was used for origin computation 49
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 47
Type of magnitude ML
Reference to an origin 115725401
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-03-25 16:12:02

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 38
Type of magnitude ML
Reference to an origin 115708091
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-03-25 02:03:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.BADI.EHE. 2023-03-25T01:58:05.05 0.3 undecidable manual S 345 79.6647 50 0.38 63
IV.FRON.EHZ. 2023-03-25T01:58:05.25 0.3 undecidable manual S 13 80.1642 50 0.45 62
IV.ARVD.HHE. 2023-03-25T01:58:05.88 0.3 undecidable manual S 25 83.9493 50 0.06 67
IV.MF5.EHZ. 2023-03-25T01:58:05.40 0.6 undecidable manual S 76 80.7636 50 0.44 42
IV.CING.HHZ. 2023-03-25T01:58:05.78 1.0 undecidable manual S 42 84.1491 50 -0.1 22
IV.ATBU.EHZ. 2023-03-25T01:58:03.01 0.6 undecidable manual S 3 73.371 50 0.01 46
IV.ATPC.HHE. 2023-03-25T01:58:03.25 0.6 undecidable manual S 358 73.8705 50 0.12 45
IV.ATMC.EHE. 2023-03-25T01:58:03.08 0.6 undecidable manual S 341 74.1702 50 -0.14 45
IV.CAFI.HNN. 2023-03-25T01:58:02.38 0.3 undecidable manual S 323 71.2731 50 -0.06 69
IV.SMA1.EHZ. 2023-03-25T01:58:02.46 0.6 undecidable manual S 106 71.4729 50 -0.04 46
IV.BARO.HNZ. 2023-03-25T01:58:02.87 1.0 undecidable manual S 210 72.5718 50 0.08 23
IV.ATSC.EHE. 2023-03-25T01:58:02.56 0.3 undecidable manual S 13 69.2751 50 0.65 59
IV.ATPI.EHE. 2023-03-25T01:58:02.89 0.3 undecidable manual S 354 70.8735 50 0.56 61
IV.MMO1.EHZ. 2023-03-25T01:58:01.93 0.6 undecidable manual S 82 68.2761 50 0.29 44
IV.RM33.EHZ. 2023-03-25T01:58:01.50 0.6 undecidable manual S 120 67.8765 50 -0.02 47
IV.TB03.DHZ.01 2023-03-25T01:58:01.10 1.0 undecidable manual S 354 65.3901 50 0.24 22
7F.SIB2.EHE. 2023-03-25T01:58:01.02 0.3 undecidable manual S 82 66.378 50 -0.1 69
IV.LATE.HHN. 2023-03-25T01:58:00.12 0.3 undecidable manual S 249 60.5949 50 0.55 63
7F.SIB1.EHE. 2023-03-25T01:58:00.64 0.3 undecidable manual S 82 63.6918 50 0.23 67
IV.SRES.HHN. 2023-03-25T01:58:00.80 0.3 undecidable manual S 179 64.1913 50 0.27 67
IV.TB01.DHZ.01 2023-03-25T01:58:00.32 0.3 undecidable manual S 356 62.9925 50 0.09 69
IV.CSP1.EHZ. 2023-03-25T01:58:00.77 0.6 undecidable manual S 62 65.2902 50 -0.08 46
IV.ATVO.HHN. 2023-03-25T01:58:00.51 0.3 undecidable manual S 354 63.2922 50 0.21 68
7F.SIB3.EHN. 2023-03-25T01:58:00.38 0.3 undecidable manual S 84 63.3921 50 0.04 70
IV.TSM2.DHN.01 2023-03-25T01:58:00.54 0.3 undecidable manual S 360 64.491 50 -0.08 70
IV.TSM3.DH2.07 2023-03-25T01:58:00.69 0.6 undecidable manual S 350 63.9915 50 0.2 45
IV.TB02.DHZ.01 2023-03-25T01:58:00.17 0.3 undecidable manual S 354 61.9935 50 0.22 68
IV.ATMI.HHZ. 2023-03-25T01:57:59.06 0.3 undecidable manual S 342 60.3951 50 -0.48 64
IV.ATFO.HHN. 2023-03-25T01:57:59.56 0.3 undecidable manual S 6 61.494 50 -0.26 67
IV.FOSV.HNE. 2023-03-25T01:57:58.83 0.3 undecidable manual S 22 57.3981 50 0.09 70
IV.ATLO.EHE. 2023-03-25T01:57:58.10 0.3 undecidable manual S 353 55.8996 50 -0.23 68
IV.FDMO.HHZ. 2023-03-25T01:57:57.79 0.3 undecidable manual S 63 54.0015 50 -0.04 71
IV.ATVA.EHE. 2023-03-25T01:57:57.59 0.6 undecidable manual S 342 54.1014 50 -0.27 45
IV.MURB.HHE. 2023-03-25T01:57:56.69 0.3 undecidable manual S 3 49.7169 50 0 72
IV.SACS.HHZ. 2023-03-25T01:57:56.29 0.6 undecidable manual S 275 47.7189 50 0.14 47
IV.NRCA.HHZ. 2023-03-25T01:57:56.97 0.3 undecidable manual S 87 50.5161 50 0.09 71
IV.LNSS.HHZ. 2023-03-25T01:57:56.93 0.3 undecidable manual S 118 50.3163 50 0.09 71
IV.MML1.EHZ. 2023-03-25T01:57:56.57 0.3 undecidable manual S 49 50.9157 50 -0.44 66
IV.CING.HHZ. 2023-03-25T01:57:55.15 0.1 undecidable manual P 42 84.1491 50 0.06 90
IT.MTCL.HGZ. 2023-03-25T01:57:55.50 0.3 undecidable manual S 64 45.5211 50 -0.07 72
IV.BADI.EHE. 2023-03-25T01:57:54.70 0.1 undecidable manual P 345 79.6647 50 0.31 86
IV.FRON.EHZ. 2023-03-25T01:57:54.38 0.3 undecidable manual P 13 80.1642 50 -0.09 67
IV.ARVD.HHE. 2023-03-25T01:57:54.91 0.1 undecidable manual P 25 83.9493 50 -0.14 88
IV.ATCC.EHZ. 2023-03-25T01:57:54.55 0.3 undecidable manual S 16 42.7239 50 -0.26 70
IV.MF5.EHZ. 2023-03-25T01:57:54.96 0.1 undecidable manual P 76 80.7636 50 0.4 84
IV.ATBU.EHZ. 2023-03-25T01:57:53.60 0.6 undecidable manual P 3 73.371 50 0.17 45
IV.CESI.HHZ. 2023-03-25T01:57:53.86 0.6 undecidable manual S 58 39.4272 50 -0.07 49
IV.SMA1.EHZ. 2023-03-25T01:57:53.32 0.1 undecidable manual P 106 71.4729 50 0.18 89
IV.ATPC.HHE. 2023-03-25T01:57:53.79 0.1 undecidable manual P 358 73.8705 50 0.29 87
IV.ATPI.EHE. 2023-03-25T01:57:53.24 0.1 undecidable manual P 354 70.8735 50 0.2 89
IV.ATMC.EHE. 2023-03-25T01:57:53.78 0.1 undecidable manual P 341 74.1702 50 0.23 88
7F.SIB2.EHE. 2023-03-25T01:57:52.05 0.1 undecidable manual P 82 66.378 50 -0.29 88
7F.SIB3.EHN. 2023-03-25T01:57:52.11 0.3 undecidable manual P 84 63.3921 50 0.22 68
IV.TSM3.DH2.07 2023-03-25T01:57:52.09 0.1 undecidable manual P 350 63.9915 50 0.11 92
IV.GAVE.EHN. 2023-03-25T01:57:52.76 0.3 undecidable manual S 113 35.3424 50 -0.07 73
IV.ARRO.EHZ. 2023-03-25T01:57:52.35 0.3 undecidable manual S 140 34.2435 50 -0.2 72
IV.MMO1.EHZ. 2023-03-25T01:57:52.58 0.1 positive manual P 82 68.2761 50 -0.06 92
IV.CAFI.HNN. 2023-03-25T01:57:52.99 0.1 negative manual P 323 71.2731 50 -0.12 91
IV.BARO.HNZ. 2023-03-25T01:57:52.86 1.0 undecidable manual P 210 72.5718 50 -0.45 21
IV.ATSC.EHE. 2023-03-25T01:57:52.91 0.3 undecidable manual P 13 69.2751 50 0.11 68
IV.RM33.EHZ. 2023-03-25T01:57:52.09 0.1 undecidable manual P 120 67.8765 50 -0.48 85
IV.TB03.DHZ.01 2023-03-25T01:57:52.15 0.1 undecidable manual P 354 65.3901 50 -0.04 93
IV.MGAB.HHZ. 2023-03-25T01:57:51.75 0.3 undecidable manual S 289 32.9448 104 -0.39 69
IV.CSP1.EHZ. 2023-03-25T01:57:51.93 0.1 undecidable manual P 62 65.2902 50 -0.25 89
IV.ATVO.HHN. 2023-03-25T01:57:51.92 0.1 undecidable manual P 354 63.2922 50 0.05 93
IV.TSM2.DHN.01 2023-03-25T01:57:51.96 0.3 undecidable manual P 360 64.491 50 -0.09 69
IV.TB02.DHZ.01 2023-03-25T01:57:51.74 0.1 undecidable manual P 354 61.9935 50 0.07 93
IV.FOSV.HNE. 2023-03-25T01:57:51.31 0.1 undecidable manual P 22 57.3981 50 0.34 89
IV.LATE.HHN. 2023-03-25T01:57:51.27 0.1 undecidable manual P 249 60.5949 50 -0.18 91
7F.SIB1.EHE. 2023-03-25T01:57:51.86 0.1 undecidable manual P 82 63.6918 50 -0.07 93
IV.SRES.HHN. 2023-03-25T01:57:51.66 0.3 undecidable manual P 179 64.1913 50 -0.34 66
IV.ATMI.HHZ. 2023-03-25T01:57:51.15 0.1 undecidable manual P 342 60.3951 50 -0.28 90
IV.TB01.DHZ.01 2023-03-25T01:57:51.64 0.1 undecidable manual P 356 62.9925 50 -0.19 91
IV.ATFO.HHN. 2023-03-25T01:57:51.36 0.6 undecidable manual P 6 61.494 50 -0.23 45
IV.FDMO.HHZ. 2023-03-25T01:57:50.34 0.1 positive manual P 63 54.0015 50 -0.11 94
IV.ATVA.EHE. 2023-03-25T01:57:50.27 0.1 undecidable manual P 342 54.1014 50 -0.19 92
IV.ATLO.EHE. 2023-03-25T01:57:50.54 0.1 undecidable manual P 353 55.8996 50 -0.19 92
IV.ASSB.HHZ. 2023-03-25T01:57:50.34 0.3 undecidable manual S 28 28.5492 106 -0.34 70
IV.MML1.EHZ. 2023-03-25T01:57:49.80 0.1 positive manual P 49 50.9157 50 -0.17 93
IV.MURB.HHE. 2023-03-25T01:57:49.81 0.1 undecidable manual P 3 49.7169 50 0.03 96
IV.SACS.HHZ. 2023-03-25T01:57:49.53 0.1 positive manual P 275 47.7189 50 0.06 96
IV.CESX.HHZ. 2023-03-25T01:57:49.28 0.3 undecidable manual S 162 24.1536 109 0.06 75
IV.NRCA.HHZ. 2023-03-25T01:57:49.79 0.1 positive manual P 87 50.5161 50 -0.1 95
IT.FOPC.HGN. 2023-03-25T01:57:49.27 0.3 undecidable manual S 45 24.1536 109 0.06 75
IV.LNSS.HHZ. 2023-03-25T01:57:49.76 0.1 positive manual P 118 50.3163 50 -0.11 94
IV.ATCC.EHZ. 2023-03-25T01:57:48.46 0.1 undecidable manual P 16 42.7239 50 -0.24 93
IT.MTCL.HGZ. 2023-03-25T01:57:48.98 0.1 undecidable manual P 64 45.5211 50 -0.16 94
IV.CESI.HHZ. 2023-03-25T01:57:48.09 0.1 positive manual P 58 39.4272 50 -0.1 97
IV.MGAB.HHZ. 2023-03-25T01:57:47.01 0.1 positive manual P 289 32.9448 104 -0.15 97
IV.GAVE.EHN. 2023-03-25T01:57:47.32 0.3 undecidable manual P 113 35.3424 50 -0.24 71
IV.ARRO.EHZ. 2023-03-25T01:57:47.46 0.1 undecidable manual P 140 34.2435 50 0.06 98
IV.ASSB.HHZ. 2023-03-25T01:57:46.25 0.1 positive manual P 28 28.5492 106 -0.06 99
IT.FOPC.HGN. 2023-03-25T01:57:45.34 0.1 undecidable manual P 45 24.1536 109 -0.13 99
IV.CESX.HHZ. 2023-03-25T01:57:45.53 0.1 negative manual P 162 24.1536 109 0.06 100
IV.MOMA.HHZ. 2023-03-25T01:57:44.07 0.3 undecidable manual S 101 6.2937 143 0.08 77
IT.GNU.HGZ. 2023-03-25T01:57:44.06 0.3 undecidable manual S 102 6.2937 143 0.07 77
IV.MOMA.HHZ. 2023-03-25T01:57:42.82 0.1 positive manual P 101 6.2937 143 0.37 97
IT.GNU.HGZ. 2023-03-25T01:57:42.84 0.1 undecidable manual P 102 6.2937 143 0.39 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IT.GNU.HGE. ML:4.1 0.2305 0.2 AML other m 2023-03-25T01:57:44.32
IV.MOMA.HHE. ML:2.4 0.00404 0.74 AML other m 2023-03-25T01:57:44.39
IV.MOMA.HNE. ML:2.3 0.003885 0.74 AML other m 2023-03-25T01:57:44.40
IT.GNU.HGN. ML:4.0 0.184 0.06 AML other m 2023-03-25T01:57:44.44
IV.MOMA.HHN. ML:1.1 0.000223 0.44 AML other m 2023-03-25T01:57:44.26
IV.MOMA.HNN. ML:2.2 0.00263 0.84 AML other m 2023-03-25T01:57:44.06
IV.CESX.HHN. ML:1.4 0.0001455 0.24 AML other m 2023-03-25T01:57:50.58
IV.ASSB.HHE. ML:1.5 0.00017749999999999998 0.6 AML other m 2023-03-25T01:57:50.73
IV.ASSB.HHN. ML:1.6 0.000188 0.28 AML other m 2023-03-25T01:57:50.80
IV.CESX.HHE. ML:1.4 0.0001535 0.32 AML other m 2023-03-25T01:57:53.02
IV.MGAB.HHE. ML:1.6 0.0001595 0.78 AML other m 2023-03-25T01:57:53.48
IV.MGAB.HHN. ML:1.7 0.000246 0.26 AML other m 2023-03-25T01:57:54.25
IV.ARRO.EHE. ML:1.2 0.0000697 0.48 AML other m 2023-03-25T01:57:54.58
IV.CESI.HHE. ML:1.3 0.00007145 0.32 AML other m 2023-03-25T01:57:54.89
IV.ARRO.EHN. ML:1.2 0.000071 0.22 AML other m 2023-03-25T01:57:54.80
IV.CESI.HHN. ML:1.3 0.00007605 0.34 AML other m 2023-03-25T01:57:55.36
IV.ATCC.EHN. ML:1.3 0.0000666 0.48 AML other m 2023-03-25T01:57:56.74
IV.ATCC.EHE. ML:1.5 0.0000953 0.34 AML other m 2023-03-25T01:57:56.61
IV.LNSS.HHN. ML:1.6 0.000111 0.32 AML other m 2023-03-25T01:57:57.66
IV.LNSS.HHE. ML:1.8 0.00014800000000000002 1 AML other m 2023-03-25T01:57:57.71
IV.SACS.HHE. ML:1.2 0.000047550000000000004 0.18 AML other m 2023-03-25T01:57:58.48
IV.MML1.EHN. ML:1.2 0.00004185 0.16 AML other m 2023-03-25T01:57:58.79
IV.SACS.HHN. ML:1.2 0.000041599999999999995 1.5 AML other m 2023-03-25T01:57:59.88
IV.MML1.HNN. ML:1.8 0.00014500000000000003 1.18 AML other m 2023-03-25T01:57:59.78
IV.MML1.EHE. ML:1.2 0.00004455 0.96 AML other m 2023-03-25T01:57:59.89
IV.NRCA.HHN. ML:1.5 0.0000887 0.12 AML other m 2023-03-25T01:57:59.49
IV.NRCA.HHE. ML:1.5 0.0000752 0.48 AML other m 2023-03-25T01:57:59.32
IV.FDMO.HHE. ML:1.1 0.000030900000000000006 0.98 AML other m 2023-03-25T01:58:00.04
IV.FDMO.HHN. ML:1.1 0.0000283 0.58 AML other m 2023-03-25T01:58:00.51
IV.MMO1.EHE. ML:1.4 0.000042999999999999995 0.18 AML other m 2023-03-25T01:58:03.12
IV.MMO1.EHN. ML:1.4 0.00004425 0.28 AML other m 2023-03-25T01:58:03.37
IV.CSP1.EHN. ML:1.8 0.00010779999999999999 0.44 AML other m 2023-03-25T01:58:03.75
IV.ATMI.HHN. ML:1.6 0.00008715 0.44 AML other m 2023-03-25T01:58:03.67
IV.RM33.EHN. ML:1.4 0.00004085 0.88 AML other m 2023-03-25T01:58:04.64
IV.ATMI.HHE. ML:1.7 0.00009920000000000001 0.42 AML other m 2023-03-25T01:58:04.96
IV.RM33.EHE. ML:1.4 0.00004585 0.3 AML other m 2023-03-25T01:58:04.97
IV.MML1.HNE. ML:1.7 0.00013035 0.46 AML other m 2023-03-25T01:58:05.16
IV.CSP1.EHE. ML:1.9 0.0001535 1.42 AML other m 2023-03-25T01:58:06.71
IV.MGAB.HNE. ML:1.5 0.0001385683 0.1904 AML other m 2023-03-25T01:57:53.96
IV.MGAB.HNN. ML:1.8 0.00029775390000000003 0.28 AML other m 2023-03-25T01:57:54.25
IV.CESI.HNN. ML:1.4 0.00009834066500000001 0.6608 AML other m 2023-03-25T01:58:03.51
IV.ATCC.HNE. ML:1.7 0.0001493161 0.8896 AML other m 2023-03-25T01:58:03.35
IV.NRCA.HNE. ML:1.6 0.00010143211 0.3696 AML other m 2023-03-25T01:57:57.91
IV.SRES.HHN. ML:0.7 0.000011126411 0.4192 AML other m 2023-03-25T01:58:10.13
IV.SRES.HHE. ML:0.7 0.0000124190575 0.2 AML other m 2023-03-25T01:58:03.31
IV.CING.HHN. ML:1.1 0.000014941934999999999 1.2192 AML other m 2023-03-25T01:58:22.04
IV.CING.HHE. ML:1.1 0.00001586597 0.76 AML other m 2023-03-25T01:58:01.49
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