Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 18-04-2024 and time 03:08:53 (Italy) in region 2 km NE Montefalco (PG)

A magnitude ML 1.7 earthquake occured in region: 2 km NE Montefalco (PG), on

  • 18-04-2024 01:08:53 (UTC)
  • 18-04-2024 03:08:53 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9070, 12.6780 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
Montefalco PG 2 5679 5679
Foligno PG 6 57155 62834
Bevagna PG 6 5081 67915
Trevi PG 7 8469 76384
Castel Ritaldi PG 9 3278 79662
Spello PG 10 8645 88307
Gualdo Cattaneo PG 10 6155 94462
Giano dell'Umbria PG 11 3846 98308
Cannara PG 13 4305 102613
Campello sul Clitunno PG 13 2442 105055
Valtopina PG 18 1398 106453
Assisi PG 19 28299 134752
Massa Martana PG 19 3770 138522
Collazzone PG 20 3473 141995
Bettona PG 20 4367 146362
Spoleto PG 20 38218 184580

Municipalities with at least 50000 inhabitants

An earthquake occurred to
6 Km SW of Foligno (57155 inhabitants)
32 Km SE of Perugia (166134 inhabitants)
39 Km N of Terni (111501 inhabitants)
72 Km NE of Viterbo (67173 inhabitants)
85 Km NW of L'Aquila (69753 inhabitants)
88 Km W of Teramo (54892 inhabitants)
90 Km SE of Arezzo (99543 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 1.7 2024-04-18
01:08:53		 42.9068 12.6778 10 2024-04-18
01:18:36		 Sala Sismica INGV-Roma 126846171
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-04-18 01:08:53 ± 0.05
Latitude 42.9068 ± 0.0018
Longitude 12.6778 ± 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 126846171

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 344
Semi-minor axis of confidence ellipse (meter) 168
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 274
Circular confidence region, given by single value of horizontal uncertainty (meter) 340.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 73
Number of associated phases, regardless of their use for origin computation 49
Number of defining phases 38
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.61154
Number of stations at which the event was observed 30
Number of stations from which data was used for origin computation 20
Magnitude information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 50
Type of magnitude ML
Reference to an origin 126846171
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-04-18 01:18:36
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SRES.HHZ. 2024-04-18T01:09:18.11 3.0 undecidable manual S -0.28 0
IV.FRON.EHZ. 2024-04-18T01:09:15.22 0.1 undecidable manual S 3 67.8765 50 0.51 82
IV.RM33.EHZ. 2024-04-18T01:09:14.13 3.0 undecidable manual S -0.32 0
IV.SSFR.HHZ. 2024-04-18T01:09:12.73 0.3 undecidable manual S 8 59.2962 50 0.3 65
IV.ATVO.HHZ. 2024-04-18T01:09:12.21 0.6 undecidable manual S 337 57.0984 50 0.38 43
IV.SNTG.HHZ. 2024-04-18T01:09:09.01 0.3 undecidable manual S 29 44.1225 50 0.65 61
IV.MGAB.HHZ. 2024-04-18T01:09:08.98 0.3 undecidable manual S 271 45.9207 50 0.12 69
IV.LNSS.HHZ. 2024-04-18T01:09:08.82 0.1 undecidable manual S 139 44.8218 50 0.27 90
IV.MURB.HHZ. 2024-04-18T01:09:07.84 0.1 undecidable manual S 343 41.4252 50 0.19 92
IV.FOSV.EHZ. 2024-04-18T01:09:07.97 0.3 undecidable manual S 9 43.5231 50 -0.25 68
IV.CAFI.HHZ. 2024-04-18T01:09:07.22 3.0 negative manual P 0.12 0
IV.ATFO.HHZ. 2024-04-18T01:09:06.14 3.0 undecidable manual P 0
IV.FDMO.HHZ. 2024-04-18T01:09:06.36 0.1 undecidable manual S 66 36.2415 50 0.1 94
IV.ARRO.EHZ. 2024-04-18T01:09:06.70 0.1 undecidable manual S 169 37.0296 50 0.22 92
IV.MML1.EHZ. 2024-04-18T01:09:05.03 0.1 undecidable manual S 46 33.0447 50 -0.39 89
IV.MF5.EHZ. 2024-04-18T01:09:05.79 3.0 positive manual P 0.19 0
IV.FRON.EHZ. 2024-04-18T01:09:05.57 0.3 undecidable manual P 3 67.8765 50 -0.3 64
IV.SMA1.EHZ. 2024-04-18T01:09:05.64 3.0 negative manual P 0.36 0
IV.CESX.HHZ. 2024-04-18T01:09:05.21 0.1 undecidable manual S 193 33.9438 50 -0.43 88
IV.CING.HHZ. 2024-04-18T01:09:05.90 0.1 undecidable manual P 39 66.7776 50 0.2 88
IV.SSFR.HHZ. 2024-04-18T01:09:04.60 0.3 undecidable manual P 8 59.2962 50 0.05 69
IV.ATVO.HHZ. 2024-04-18T01:09:04.29 0.1 undecidable manual P 337 57.0984 50 0.08 91
IV.SACS.HHZ. 2024-04-18T01:09:04.98 3.0 positive manual P -0.31 0
IV.ATMI.HHZ. 2024-04-18T01:09:04.70 0.3 undecidable manual P 325 57.8976 50 0.38 64
IV.GUMA.HHZ. 2024-04-18T01:09:04.39 3.0 positive manual P 0.17 0
IV.GAVE.EHZ. 2024-04-18T01:09:04.52 0.1 undecidable manual S 143 29.6481 50 0.03 97
IV.ATCC.EHZ. 2024-04-18T01:09:04.45 0.1 undecidable manual S 354 31.0467 50 -0.42 89
IV.RM33.EHZ. 2024-04-18T01:09:04.89 3.0 positive manual P -0.47 0
IV.MMO1.EHZ. 2024-04-18T01:09:03.49 3.0 positive manual P -0.23 0
IV.LNSS.HHZ. 2024-04-18T01:09:02.24 0.1 undecidable manual P 139 44.8218 50 -0.07 94
IV.SNTG.HHZ. 2024-04-18T01:09:02.12 0.1 undecidable manual P 29 44.1225 50 -0.08 93
IV.MGAB.HHZ. 2024-04-18T01:09:02.29 0.1 undecidable manual P 271 45.9207 50 -0.2 91
IV.FOSV.EHZ. 2024-04-18T01:09:02.07 0.1 undecidable manual P 9 43.5231 50 -0.05 94
IV.CSP1.EHZ. 2024-04-18T01:09:02.71 3.0 positive manual P -0.05 0
IV.ARRO.EHZ. 2024-04-18T01:09:01.12 0.1 undecidable manual P 169 37.0296 50 0 96
IV.CESI.HHZ. 2024-04-18T01:09:01.98 0.1 undecidable manual S 59 21.3675 114 0.06 98
IV.MURB.HHZ. 2024-04-18T01:09:01.65 0.1 undecidable manual P 343 41.4252 50 -0.14 93
IV.CESX.HHZ. 2024-04-18T01:09:00.31 0.1 undecidable manual P 193 33.9438 50 -0.32 91
IV.FDMO.HHZ. 2024-04-18T01:09:00.83 0.1 undecidable manual P 66 36.2415 50 -0.16 93
IV.MML1.EHZ. 2024-04-18T01:09:00.27 0.1 undecidable manual P 46 33.0447 50 -0.23 92
IV.MOMA.HHZ. 2024-04-18T01:08:59.79 0.1 undecidable manual S 218 14.3745 124 0.01 100
IV.ATCC.EHZ. 2024-04-18T01:08:59.95 0.1 undecidable manual P 354 31.0467 50 -0.24 93
IV.ASSB.HHZ. 2024-04-18T01:08:59.79 0.1 undecidable manual S 354 15.1737 122 -0.21 96
IT.GNU.HGN. 2024-04-18T01:08:59.86 0.1 undecidable manual S 217 14.3745 124 0.08 99
IV.GAVE.EHZ. 2024-04-18T01:08:59.99 0.1 undecidable manual P 143 29.6481 50 0.02 97
IV.CESI.HHZ. 2024-04-18T01:08:58.47 0.1 positive manual P 59 21.3675 114 -0.01 99
IV.MOMA.HHZ. 2024-04-18T01:08:57.16 0.1 undecidable manual P 218 14.3745 124 -0.09 98
IV.ASSB.HHZ. 2024-04-18T01:08:57.38 0.1 undecidable manual P 354 15.1737 122 0 100
IT.GNU.HGN. 2024-04-18T01:08:57.76 0.1 undecidable manual P 217 14.3745 124 0.51 90
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MOMA.HNN. ML:1.9 0.000861 1.78 AML other m 2024-04-18T01:08:59.97
IV.MOMA.HHE. ML:2.0 0.0010165 1.66 AML other m 2024-04-18T01:09:00.97
IV.ASSB.HHN. ML:1.7 0.000472 0.32 AML other m 2024-04-18T01:09:00.37
IV.MOMA.HHN. ML:1.9 0.0008525000000000001 1.66 AML other m 2024-04-18T01:09:01.15
IV.FDMO.HHE. ML:1.5 0.000128 0.18 AML other m 2024-04-18T01:09:01.22
IV.MOMA.HNE. ML:2.0 0.0009105 0.3 AML other m 2024-04-18T01:09:01.60
IV.ASSB.HHE. ML:1.7 0.0004325 0.18 AML other m 2024-04-18T01:09:01.94
IV.CESI.HHN. ML:1.6 0.0002805 1.38 AML other m 2024-04-18T01:09:03.10
IV.ATCC.HNN. ML:1.8 0.0002675 1.48 AML other m 2024-04-18T01:09:04.77
IV.CESI.HHE. ML:1.4 0.000156 1.04 AML other m 2024-04-18T01:09:04.34
IV.ATCC.HNE. ML:1.8 0.0002595 0.42 AML other m 2024-04-18T01:09:04.89
IV.GAVE.EHE. ML:1.9 0.000379 1 AML other m 2024-04-18T01:09:05.67
IV.ATCC.EHE. ML:1.7 0.0002485 1.44 AML other m 2024-04-18T01:09:05.74
IV.MML1.EHE. ML:1.6 0.00017749999999999998 1.68 AML other m 2024-04-18T01:09:05.92
IV.MMO1.HNN. ML:3.4 0.006125 0.88 AML other m 2024-04-18T01:09:06.76
IV.MML1.EHN. ML:1.6 0.0001805 0.5 AML other m 2024-04-18T01:09:06.66
IV.ATCC.EHN. ML:1.7 0.00021400000000000002 0.82 AML other m 2024-04-18T01:09:06.46
IV.CESX.HHE. ML:1.8 0.0002785 1.26 AML other m 2024-04-18T01:09:06.28
IV.GAVE.EHN. ML:1.9 0.0003975 1.14 AML other m 2024-04-18T01:09:06.41
IV.ARRO.EHN. ML:1.5 0.00012505 0.54 AML other m 2024-04-18T01:09:07.36
IV.CESX.HHN. ML:1.8 0.00028900000000000003 0.58 AML other m 2024-04-18T01:09:07.03
IV.ARRO.EHE. ML:1.6 0.000155 0.26 AML other m 2024-04-18T01:09:07.71
IV.FDMO.HHN. ML:1.4 0.00010115 0.8 AML other m 2024-04-18T01:09:08.44
IV.FOSV.EHE. ML:1.4 0.0000772 0.18 AML other m 2024-04-18T01:09:08.94
IV.MGAB.HHN. ML:1.6 0.000131 0.42 AML other m 2024-04-18T01:09:10.28
IV.MURB.HHE. ML:1.9 0.00028900000000000003 0.48 AML other m 2024-04-18T01:09:10.36
IV.SNTG.HHE. ML:1.2 0.00005615 1.66 AML other m 2024-04-18T01:09:10.97
IV.MGAB.HHE. ML:1.7 0.00015050000000000003 0.62 AML other m 2024-04-18T01:09:10.47
IV.LNSS.HHE. ML:1.9 0.00023300000000000003 0.28 AML other m 2024-04-18T01:09:11.23
IV.LNSS.HHN. ML:2.0 0.0002945 0.18 AML other m 2024-04-18T01:09:11.35
IV.SNTG.HHN. ML:1.4 0.000077 1.28 AML other m 2024-04-18T01:09:11.32
IV.MMO1.EHE. ML:1.9 0.000191 1.1 AML other m 2024-04-18T01:09:11.33
IV.MURB.HHN. ML:2.0 0.00032950000000000004 0.48 AML other m 2024-04-18T01:09:11.73
IV.MMO1.EHN. ML:2.1 0.000286 0.3 AML other m 2024-04-18T01:09:11.82
IV.FOSV.EHN. ML:1.3 0.0000674 0.98 AML other m 2024-04-18T01:09:12.37
IV.SSFR.HHE. ML:2.0 0.00020500000000000002 0.2 AML other m 2024-04-18T01:09:14.12
IV.GUMA.HHN. ML:1.8 0.00013065 0.44 AML other m 2024-04-18T01:09:14.26
IV.SSFR.HHN. ML:1.7 0.0000927 0.88 AML other m 2024-04-18T01:09:14.50
IV.GUMA.HHE. ML:1.9 0.000195 0.24 AML other m 2024-04-18T01:09:14.69
IV.ATVO.HHN. ML:1.3 0.000040499999999999995 0.68 AML other m 2024-04-18T01:09:14.45
IV.RM33.EHN. ML:1.7 0.0001042 1.04 AML other m 2024-04-18T01:09:15.52
IV.RM33.EHE. ML:1.8 0.0001225 0.34 AML other m 2024-04-18T01:09:15.72
IV.ATVO.HHE. ML:1.3 0.00004445 1.04 AML other m 2024-04-18T01:09:15.72
IV.ATMI.HHE. ML:1.8 0.0001435 0.24 AML other m 2024-04-18T01:09:15.87
IV.SMA1.EHE. ML:1.8 0.00011399999999999999 0.54 AML other m 2024-04-18T01:09:16.67
IV.SMA1.EHN. ML:1.7 0.00009434999999999999 0.44 AML other m 2024-04-18T01:09:18.39
IV.SACS.HHN. ML:1.5 0.0000668 1.08 AML other m 2024-04-18T01:09:18.27
IV.ATMI.HHN. ML:1.8 0.0001265 0.46 AML other m 2024-04-18T01:09:19.25
IV.SACS.HHE. ML:1.4 0.00004685 1.2 AML other m 2024-04-18T01:09:19.68
IV.MMO1.HNE. ML:3.5 0.00761 0.62 AML other m 2024-04-18T01:09:19.75
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