Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.5 on date 19-05-2023 and time 18:37:01 (Italy) in region 2 km E Spello (PG)

A magnitude ML 0.5 earthquake occured in region: 2 km E Spello (PG), on

  • 19-05-2023 16:37:01 (UTC)
  • 19-05-2023 18:37:01 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0010, 12.7010 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Spello PG 3 8645 8645
Foligno PG 5 57155 65800
Valtopina PG 8 1398 67198
Cannara PG 10 4305 71503
Bevagna PG 10 5081 76584
Assisi PG 10 28299 104883
Montefalco PG 12 5679 110562
Trevi PG 14 8469 119031
Nocera Umbra PG 14 5839 124870
Bastia Umbra PG 14 21874 146744
Gualdo Cattaneo PG 16 6155 152899
Bettona PG 18 4367 157266
Valfabbrica PG 19 3389 160655
Castel Ritaldi PG 20 3278 163933

Municipalities with at least 50000 inhabitants

An earthquake occurred to
5 Km N of Foligno (57155 inhabitants)
28 Km E of Perugia (166134 inhabitants)
49 Km N of Terni (111501 inhabitants)
81 Km NE of Viterbo (67173 inhabitants)
84 Km SE of Arezzo (99543 inhabitants)
90 Km W of Teramo (54892 inhabitants)
92 Km NW of L'Aquila (69753 inhabitants)
95 Km SW of Ancona (100861 inhabitants)
97 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 0.5 2023-05-19
16:37:01		 43.0012 12.7008 10 2023-05-19
16:44:37		 Sala Sismica INGV-Roma 117495201
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-05-19 16:37:01 ± 0.06
Latitude 43.0012 ± 0.0027
Longitude 12.7008 ± 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 117495201

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 321
Semi-minor axis of confidence ellipse (meter) 304
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 302
Circular confidence region, given by single value of horizontal uncertainty (meter) 320.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 118
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.13
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.28509
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 6
Magnitude information

ML:0.5

Field Value
Value 0.5
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 117495201
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-05-19 16:44:37
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MNTP.HNZ. 2023-05-19T16:37:27.01 3.0 undecidable manual S 2.28 0
IV.VCEL.EHZ. 2023-05-19T16:37:23.39 3.0 undecidable manual P -0.02 0
IV.FDMO.HHZ. 2023-05-19T16:37:13.08 0.3 undecidable manual S 83 31.6461 50 0.01 73
IV.MOMA.HNZ. 2023-05-19T16:37:11.07 0.6 undecidable manual S 206 24.3534 112 0.01 49
IV.MML1.EHZ. 2023-05-19T16:37:11.22 0.3 undecidable manual S 60 25.2525 112 -0.14 72
IV.ATCC.EHZ. 2023-05-19T16:37:10.00 0.3 undecidable manual S 346 20.9679 115 -0.01 75
IV.FDMO.HHZ. 2023-05-19T16:37:08.38 0.1 undecidable manual P 83 31.6461 50 0.02 97
IV.CESI.HHZ. 2023-05-19T16:37:08.85 0.6 undecidable manual S 88 16.5723 121 0.21 48
IV.MML1.EHZ. 2023-05-19T16:37:07.32 0.1 undecidable manual P 60 25.2525 112 -0.05 98
IV.MOMA.HNZ. 2023-05-19T16:37:07.05 0.3 undecidable manual P 206 24.3534 112 -0.15 72
IV.ATCC.EHZ. 2023-05-19T16:37:06.59 0.3 undecidable manual P 346 20.9679 115 0 75
IV.ASSB.HHZ. 2023-05-19T16:37:05.83 0.1 undecidable manual S 324 5.6943 150 -0.1 100
IV.CESI.HHZ. 2023-05-19T16:37:05.79 0.6 undecidable manual P 88 16.5723 121 -0.02 50
IV.ASSB.HHZ. 2023-05-19T16:37:04.51 0.1 undecidable manual P 324 5.6943 150 0.27 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ASSB.HHE. ML:0.9 0.0001377015 0.0896 AML other m 2023-05-19T16:37:06.11
IV.ASSB.HHN. ML:1.1 0.00018524245 0.064 AML other m 2023-05-19T16:37:06.16
IV.CESI.HHE. ML:0.4 0.00001953616 1.8048 AML other m 2023-05-19T16:37:10.20
IV.CESI.HHN. ML:0.1 0.0000095194935 0.2176 AML other m 2023-05-19T16:37:09.44
IV.ATCC.EHE. ML:0.4 0.000020358533000000002 0.1152 AML other m 2023-05-19T16:37:10.49
IV.ATCC.EHN. ML:0.6 0.00002360426 0.1152 AML other m 2023-05-19T16:37:10.48
IV.MML1.EHE. ML:0.4 0.0000152603465 0.2432 AML other m 2023-05-19T16:37:11.46
IV.MML1.EHN. ML:0.4 0.000016898960000000003 5.2224 AML other m 2023-05-19T16:37:11.32
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