Earthquake with magnitude of ML 0.7 on date 18-05-2023 and time 23:25:24 (Italy) in region 5 km S Valtopina (PG)

A magnitude ML 0.7 earthquake occured in region: 5 km S Valtopina (PG), on

  • 18-05-2023 21:25:24 (UTC)
  • 18-05-2023 23:25:24 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0140, 12.7580 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
Valtopina PG 5 1398 1398
Spello PG 7 8645 10043
Foligno PG 8 57155 67198
Nocera Umbra PG 11 5839 73037
Assisi PG 13 28299 101336
Cannara PG 14 4305 105641
Bevagna PG 15 5081 110722
Trevi PG 15 8469 119191
Montefalco PG 16 5679 124870
Serravalle di Chienti MC 17 1070 125940
Bastia Umbra PG 18 21874 147814
Sellano PG 20 1079 148893
Monte Cavallo MC 20 145 149038

Municipalities with at least 50000 inhabitants

An earthquake occurred to
8 Km NE of Foligno (57155 inhabitants)
32 Km E of Perugia (166134 inhabitants)
51 Km N of Terni (111501 inhabitants)
85 Km NE of Viterbo (67173 inhabitants)
87 Km W of Teramo (54892 inhabitants)
87 Km SE of Arezzo (99543 inhabitants)
90 Km NW of L'Aquila (69753 inhabitants)
91 Km SW of Ancona (100861 inhabitants)
95 Km S of Fano (60888 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 0.7 2023-05-18
21:25:24
43.0143 12.7585 10 2023-05-18
21:31:31
Sala Sismica INGV-Roma 117463021
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-05-18 21:25:24 ± 0.07
Latitude 43.0143 ± 0.0045
Longitude 12.7585 ± 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 117463021

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 476
Semi-minor axis of confidence ellipse (meter) 169
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 9
Circular confidence region, given by single value of horizontal uncertainty (meter) 480.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 166
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.09
Epicentral distance of station closest to the epicenter (degree) 0.07824
Epicentral distance of station farthest from the epicenter (degree) 0.31656
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:0.7

Field Value
Value 0.7
Uncertainty 0.5
Num. used stations 18
Type of magnitude ML
Reference to an origin 117463021
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-05-18 21:31:31
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MML1.EHZ. 2023-05-18T21:25:32.24 0.6 undecidable manual S 57 20.4684 117 0.01 50
IV.ATCC.EHZ. 2023-05-18T21:25:32.49 0.6 undecidable manual S 333 21.2676 116 0.02 50
IV.NRCA.HHZ. 2023-05-18T21:25:31.33 1.0 negative manual P 125 35.1426 50 0.09 24
IV.FDMO.HHZ. 2023-05-18T21:25:29.78 0.6 undecidable manual P 85 26.751 50 -0.16 48
IV.CESI.HHZ. 2023-05-18T21:25:29.65 0.6 undecidable manual S 95 11.877 131 -0.09 50
IV.MML1.EHZ. 2023-05-18T21:25:28.95 0.6 undecidable manual P 57 20.4684 117 0.08 49
IV.ASSB.HHZ. 2023-05-18T21:25:28.77 0.6 undecidable manual S 291 8.6802 140 -0.17 49
IV.ATCC.EHZ. 2023-05-18T21:25:28.98 0.6 undecidable manual P 333 21.2676 116 -0.04 49
IV.ASSB.HHZ. 2023-05-18T21:25:27.07 0.1 negative manual P 291 8.6802 140 0.09 100
IV.CESI.HHZ. 2023-05-18T21:25:27.61 1.0 undecidable manual P 95 11.877 131 0.18 24
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ASSB.HHE. ML:0.6 0.000053121605000000003 0.128 AML other m 2023-05-18T21:25:28.99
IV.ASSB.HHN. ML:0.9 0.00010015 1.82 AML other m 2023-05-18T21:25:29.04
IV.CESI.HHE. ML:0.0 0.000010454705 0.64 AML other m 2023-05-18T21:25:27.40
IV.CESI.HHN. ML:0.0 0.000007965887499999999 0.1152 AML other m 2023-05-18T21:25:30.76
IV.CESI.HNE. ML:0.9 0.00009229137000000001 0.5504 AML other m 2023-05-18T21:25:31.67
IV.CESI.HNN. ML:0.9 0.000096374985 0.6016 AML other m 2023-05-18T21:25:31.71
IV.MML1.EHE. ML:0.3 0.000014167475000000001 1.1008 AML other m 2023-05-18T21:25:38.32
IV.MML1.EHN. ML:0.2 0.000008437317 0.1536 AML other m 2023-05-18T21:25:32.36
IV.MML1.HNE. ML:1.3 0.00015144355 0.8192 AML other m 2023-05-18T21:25:38.55
IV.MML1.HNN. ML:1.4 0.00018384006 1.0624 AML other m 2023-05-18T21:25:31.11
IV.ATCC.EHE. ML:0.5 0.000021289097 0.0896 AML other m 2023-05-18T21:25:32.77
IV.ATCC.EHN. ML:0.5 0.000018044116499999997 0.1792 AML other m 2023-05-18T21:25:32.70
IV.ATCC.HNE. ML:1.2 0.00010662873 0.6272 AML other m 2023-05-18T21:25:34.68
IV.ATCC.HNN. ML:1.2 0.0000982 0.7424 AML other m 2023-05-18T21:25:37.58
IV.NRCA.HHE. ML:0.1 0.0000072515130000000005 0.8192 AML other m 2023-05-18T21:25:35.64
IV.NRCA.HHN. ML:0.4 0.0000088129895 0.8064 AML other m 2023-05-18T21:25:35.30
IV.NRCA.HNE. ML:1.5 0.00011373057000000001 0.64 AML other m 2023-05-18T21:25:48.37
IV.NRCA.HNN. ML:1.6 0.00016431 0.8192 AML other m 2023-05-18T21:25:44.17
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