Earthquake with magnitude of ML 0.5 on date 29-04-2023 and time 22:12:20 (Italy) in region 5 km SE Nocera Umbra (PG)

A magnitude ML 0.5 earthquake occured in region: 5 km SE Nocera Umbra (PG), on

  • 29-04-2023 20:12:20 (UTC)
  • 29-04-2023 22:12:20 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0870, 12.8440 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
Nocera Umbra PG 5 5839 5839
Valtopina PG 8 1398 7237
Serravalle di Chienti MC 9 1070 8307
Sefro MC 11 422 8729
Fiuminata MC 14 1402 10131
Pioraco MC 15 1134 11265
Muccia MC 16 915 12180
Monte Cavallo MC 16 145 12325
Gualdo Tadino PG 17 15208 27533
Pieve Torina MC 17 1458 28991
Spello PG 17 8645 37636
Foligno PG 18 57155 94791
Assisi PG 19 28299 123090
Camerino MC 19 6974 130064
Pievebovigliana MC 20 866 130930

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km NE of Foligno (57155 inhabitants)
37 Km E of Perugia (166134 inhabitants)
61 Km N of Terni (111501 inhabitants)
80 Km SW of Ancona (100861 inhabitants)
85 Km NW of Teramo (54892 inhabitants)
85 Km S of Fano (60888 inhabitants)
89 Km E of Arezzo (99543 inhabitants)
92 Km S of Pesaro (94582 inhabitants)
93 Km NW of L'Aquila (69753 inhabitants)
96 Km NE of Viterbo (67173 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 2023-04-29
20:12:20
43.0868 12.8443 10 2023-04-29
20:37:16
Sala Sismica INGV-Roma 116881631
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-29 20:12:20 ± 0.03
Latitude 43.0868 ± 0.0018
Longitude 12.8443 ± 0.0025
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 116881631

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 214
Semi-minor axis of confidence ellipse (meter) 150
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 196
Circular confidence region, given by single value of horizontal uncertainty (meter) 210.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 100
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 18
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) 0.09263
Epicentral distance of station farthest from the epicenter (degree) 0.32106
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

ML:0.5

Field Value
Value 0.5
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 116881631
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-04-29 20:37:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MURB.HHZ. 2023-04-29T20:12:32.03 0.3 undecidable manual S 307 32.4453 50 0.04 73
IV.EL6.EHZ. 2023-04-29T20:12:32.49 0.6 undecidable manual S 38 34.0437 50 0.08 48
IV.NRCA.HHZ. 2023-04-29T20:12:32.67 0.3 undecidable manual S 142 35.6421 50 -0.18 70
IV.CSP1.EHZ. 2023-04-29T20:12:31.18 0.6 undecidable manual S 89 29.2485 50 0.04 49
IV.SNTG.HHZ. 2023-04-29T20:12:28.32 0.6 undecidable manual S 23 20.1687 116 -0.13 49
IV.FDMO.HHZ. 2023-04-29T20:12:28.51 0.6 undecidable manual S 106 20.4684 116 -0.02 50
IV.NRCA.HHZ. 2023-04-29T20:12:27.69 0.6 positive manual P 142 35.6421 50 0 49
IV.MURB.HHZ. 2023-04-29T20:12:27.29 0.6 negative manual P 307 32.4453 50 0.1 48
IV.EL6.EHZ. 2023-04-29T20:12:27.53 1.0 negative manual P 38 34.0437 50 0.1 24
IV.CSP1.EHZ. 2023-04-29T20:12:26.74 0.6 negative manual P 89 29.2485 50 0.05 49
IV.ASSB.HHZ. 2023-04-29T20:12:26.98 0.6 undecidable manual S 252 15.873 122 -0.14 49
IV.FDMO.HHZ. 2023-04-29T20:12:25.19 0.1 undecidable manual P 106 20.4684 116 -0.01 100
IV.CESI.HHZ. 2023-04-29T20:12:25.68 0.6 undecidable manual S 152 10.2786 134 0.07 50
IV.MML1.EHZ. 2023-04-29T20:12:25.77 0.6 undecidable manual S 74 10.6782 133 0.06 50
IV.SNTG.HHZ. 2023-04-29T20:12:24.97 0.1 undecidable manual P 23 20.1687 116 -0.18 97
IV.ASSB.HHZ. 2023-04-29T20:12:24.46 0.3 positive manual P 252 15.873 122 0.08 74
IV.CESI.HHZ. 2023-04-29T20:12:23.64 1.0 undecidable manual P 152 10.2786 134 0.13 25
IV.MML1.EHZ. 2023-04-29T20:12:23.80 0.6 negative manual P 74 10.6782 133 0.23 49
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MML1.EHE. ML:0.9 0.00010125000000000001 0.18 AML other m 2023-04-29T20:12:25.98
IV.MML1.EHN. ML:0.8 0.00008185000000000001 1.76 AML other m 2023-04-29T20:12:26.89
IV.CESI.HHN. ML:-0.1 0.00001111 0.72 AML other m 2023-04-29T20:12:26.74
IV.CESI.HHE. ML:-0.1 0.000012199999999999998 0.76 AML other m 2023-04-29T20:12:26.43
IV.ASSB.HHN. ML:0.6 0.00003825 1.08 AML other m 2023-04-29T20:12:27.25
IV.ASSB.HHE. ML:0.6 0.00003365 0.28 AML other m 2023-04-29T20:12:27.58
IV.FDMO.HHE. ML:0.5 0.00002435 0.12 AML other m 2023-04-29T20:12:28.56
IV.FDMO.HHN. ML:0.4 0.00002065 0.1 AML other m 2023-04-29T20:12:28.62
IV.NRCA.HHN. ML:0.6 0.000013049999999999999 1.88 AML other m 2023-04-29T20:12:32.00
IV.NRCA.HHE. ML:0.4 0.000010305 0.8 AML other m 2023-04-29T20:12:33.57
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