Earthquake with magnitude of ML 0.9 on date 18-04-2024 and time 20:32:31 (Italy) in region 2 km E Montefalco (PG)

A magnitude ML 0.9 earthquake occured in region: 2 km E Montefalco (PG), on

  • 18-04-2024 18:32:31 (UTC)
  • 18-04-2024 20:32:31 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9060, 12.6800 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
Montefalco PG 3 5679 5679
Foligno PG 6 57155 62834
Trevi PG 6 8469 71303
Bevagna PG 7 5081 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
Campello sul Clitunno PG 12 2442 100750
Cannara PG 13 4305 105055
Valtopina PG 18 1398 106453
Massa Martana PG 19 3770 110223
Assisi PG 19 28299 138522
Spoleto PG 20 38218 176740
Collazzone PG 20 3473 180213
Bettona PG 20 4367 184580

Municipalities with at least 50000 inhabitants

An earthquake occurred to
6 Km SW of Foligno (57155 inhabitants)
33 Km SE of Perugia (166134 inhabitants)
38 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 0.9 2024-04-18
18:32:31
42.9057 12.6798 10 2024-04-18
18:39:43
Sala Sismica INGV-Roma 126868311
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-04-18 18:32:31 ± 0.05
Latitude 42.9057 ± 0.0027
Longitude 12.6798 ± 0.0037
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 126868311

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 348
Semi-minor axis of confidence ellipse (meter) 199
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 158
Circular confidence region, given by single value of horizontal uncertainty (meter) 350.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 102
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.41549
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 9
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 126868311
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-04-18 18:39:43
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CERT.HHZ. 2024-04-18T18:32:47.11 3.0 undecidable manual P -0.15 0
IV.MGAB.HHZ. 2024-04-18T18:32:46.44 0.3 undecidable manual S 271 46.1205 50 0.26 68
IV.NRCA.HHZ. 2024-04-18T18:32:43.46 0.3 undecidable manual S 103 36.2415 50 -0.07 72
IV.FDMO.HHZ. 2024-04-18T18:32:43.96 0.3 undecidable manual S 66 36.1416 50 0.46 66
IV.MML1.EHZ. 2024-04-18T18:32:42.53 0.3 undecidable manual S 46 33.0447 50 -0.15 71
IV.CESI.HHZ. 2024-04-18T18:32:39.42 0.3 undecidable manual S 59 21.2676 114 0.25 71
ZO.PDN12.EHN. 2024-04-18T18:32:39.14 0.3 undecidable manual S 116 21.4674 114 -0.08 73
IV.MGAB.HHZ. 2024-04-18T18:32:39.50 0.3 undecidable manual P 271 46.1205 50 -0.29 67
IV.NRCA.HHZ. 2024-04-18T18:32:38.12 0.3 positive manual P 103 36.2415 50 -0.15 71
IV.FDMO.HHZ. 2024-04-18T18:32:38.15 0.6 positive manual P 66 36.1416 50 -0.1 48
IV.ASSB.HHZ. 2024-04-18T18:32:37.16 0.3 undecidable manual S 354 15.2736 122 -0.17 73
IV.MML1.EHZ. 2024-04-18T18:32:37.64 0.1 undecidable manual P 46 33.0447 50 -0.14 95
IT.GNU.HGE. 2024-04-18T18:32:37.17 0.3 undecidable manual S 218 14.3745 124 0.1 74
IV.MOMA.HHZ. 2024-04-18T18:32:36.97 0.3 undecidable manual S 218 14.3745 124 -0.1 74
ZO.PDN12.EHN. 2024-04-18T18:32:35.69 0.1 undecidable manual P 116 21.4674 114 -0.09 98
IV.CESI.HHZ. 2024-04-18T18:32:35.80 0.3 undecidable manual P 59 21.2676 114 0.05 74
IV.ASSB.HHZ. 2024-04-18T18:32:34.71 0.1 undecidable manual P 354 15.2736 122 0.03 100
IV.MOMA.HHZ. 2024-04-18T18:32:34.58 0.1 undecidable manual P 218 14.3745 124 0.05 100
IT.GNU.HGE. 2024-04-18T18:32:34.67 0.3 undecidable manual P 218 14.3745 124 0.14 73
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MOMA.HHE. ML:1.2 0.0001375 0.3 AML other m 2024-04-18T18:32:37.39
IV.MOMA.HHN. ML:1.0 0.00009468957 0.14 AML other m 2024-04-18T18:32:37.98
IV.NRCA.HHN. ML:1.1 0.00004514999999999999 0.42 AML other m 2024-04-18T18:32:45.24
IV.NRCA.HHE. ML:1.0 0.0000388 0.76 AML other m 2024-04-18T18:32:45.27
IV.MOMA.HNE. ML:1.0 0.000111342985 0.22 AML other m 2024-04-18T18:32:38.09
IV.MOMA.HNN. ML:1.2 0.00013824425000000002 0.21 AML other m 2024-04-18T18:32:37.35
IV.CESI.HHE. ML:0.6 0.00002312091 0.14 AML other m 2024-04-18T18:32:39.91
IV.CESI.HHN. ML:0.8 0.00004074203 0.12 AML other m 2024-04-18T18:32:39.70
IV.MML1.EHE. ML:0.8 0.00002358142 0.12 AML other m 2024-04-18T18:32:43.11
IV.MML1.EHN. ML:0.8 0.000024957300000000002 0.1 AML other m 2024-04-18T18:32:42.92
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