Earthquake with magnitude of ML 0.8 on date 24-04-2023 and time 07:08:50 (Italy) in region 7 km SE Nocera Umbra (PG)

A magnitude ML 0.8 earthquake occured in region: 7 km SE Nocera Umbra (PG), on

  • 24-04-2023 05:08:50 (UTC)
  • 24-04-2023 07:08:50 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0730, 12.8550 at 10 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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 7 5839 5839
Serravalle di Chienti MC 8 1070 6909
Valtopina PG 8 1398 8307
Sefro MC 11 422 8729
Fiuminata MC 14 1402 10131
Monte Cavallo MC 15 145 10276
Muccia MC 15 915 11191
Pioraco MC 16 1134 12325
Pieve Torina MC 16 1458 13783
Spello PG 17 8645 22428
Foligno PG 18 57155 79583
Gualdo Tadino PG 19 15208 94791
Camerino MC 19 6974 101765
Pievebovigliana MC 19 866 102631
Assisi PG 19 28299 130930
Fiordimonte MC 20 202 131132

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km NE of Foligno (57155 inhabitants)
38 Km E of Perugia (166134 inhabitants)
59 Km N of Terni (111501 inhabitants)
81 Km SW of Ancona (100861 inhabitants)
83 Km NW of Teramo (54892 inhabitants)
87 Km S of Fano (60888 inhabitants)
90 Km E of Arezzo (99543 inhabitants)
92 Km NW of L'Aquila (69753 inhabitants)
93 Km S of Pesaro (94582 inhabitants)
95 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
Bulletin
Rev1000
ML 0.8 2023-04-24
05:08:50
43.0727 12.8553 10 2024-03-01
17:18:07
Bollettino Sismico Italiano INGV 117146541
Reviewed
Rev100
ML 0.8 2023-04-24
05:08:50
43.0723 12.8482 10 2023-04-24
05:13:42
Sala Sismica INGV-Roma 116683261
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-24 05:08:50 ± 0.06
Latitude 43.0727 ± 0.0036
Longitude 12.8553 ± 0.0049
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 117146541

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 376
Semi-minor axis of confidence ellipse (meter) 243
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 43
Circular confidence region, given by single value of horizontal uncertainty (meter) 380.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 71
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 23
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.07644
Epicentral distance of station farthest from the epicenter (degree) 0.38131
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 117146541
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-05-08 12:05:10

ML:0.8

Field Value
Value 0.8
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 116683261
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-04-24 05:13:42
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GAVE.EHN. 2023-04-24T05:09:04.64 0.6 undecidable manual S 176 42.3243 50 -0.15 48
IV.NRCA.HHZ. 2023-04-24T05:09:02.31 0.6 undecidable manual S 142 33.8439 50 -0.21 48
IV.EL6.EHZ. 2023-04-24T05:09:02.93 0.3 undecidable manual S 35 34.743 50 0.16 72
IV.MURB.HHE. 2023-04-24T05:09:02.89 0.3 undecidable manual S 308 34.0437 50 0.3 70
IV.GAVE.EHN. 2023-04-24T05:08:59.30 0.6 undecidable manual P 176 42.3243 50 0.42 45
IV.SNTG.HHZ. 2023-04-24T05:08:58.62 0.3 undecidable manual S 19 21.3675 115 -0.4 70
IV.FEMA.HNE. 2023-04-24T05:08:58.85 0.6 undecidable manual S 128 19.9689 117 0.27 48
IV.ATCC.EHE. 2023-04-24T05:08:58.85 0.6 undecidable manual S 306 21.4674 115 -0.19 49
IV.FDMO.HHZ. 2023-04-24T05:08:58.32 0.3 undecidable manual S 102 19.2696 118 -0.03 76
IV.MOMA.HNZ. 2023-04-24T05:08:58.07 0.1 undecidable manual P 218 37.7289 50 -0.11 97
IV.MURB.HHE. 2023-04-24T05:08:57.73 0.1 undecidable manual P 308 34.0437 50 0.12 97
IV.ASSB.HHZ. 2023-04-24T05:08:57.12 0.3 undecidable manual S 258 16.2726 122 -0.34 72
IV.NRCA.HHZ. 2023-04-24T05:08:57.44 0.6 negative manual P 142 33.8439 50 -0.14 49
IV.EL6.EHZ. 2023-04-24T05:08:57.28 0.1 undecidable manual P 35 34.743 50 -0.44 91
IV.ATCC.EHE. 2023-04-24T05:08:56.00 0.1 undecidable manual P 306 21.4674 115 0.44 93
IV.CESI.HHZ. 2023-04-24T05:08:55.44 0.3 undecidable manual S 152 8.4804 140 0.04 77
IV.FDMO.HHZ. 2023-04-24T05:08:55.19 0.3 positive manual P 102 19.2696 118 0.03 76
IV.MML1.EHZ. 2023-04-24T05:08:55.98 0.6 undecidable manual S 64 10.4784 134 0.12 51
IV.SNTG.HHZ. 2023-04-24T05:08:55.54 0.3 undecidable manual P 19 21.3675 115 -0.01 76
IV.FEMA.HNE. 2023-04-24T05:08:55.19 0.1 undecidable manual P 128 19.9689 117 -0.11 100
IV.ASSB.HHZ. 2023-04-24T05:08:54.51 0.3 undecidable manual P 258 16.2726 122 -0.14 75
IV.CESI.HHZ. 2023-04-24T05:08:53.62 0.3 undecidable manual P 152 8.4804 140 0.16 76
IV.MML1.EHZ. 2023-04-24T05:08:53.92 0.1 positive manual P 64 10.4784 134 0.19 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MML1.EHE. ML:0.9 0.00010685 0.12 AML other m 2023-04-24T05:08:56.17
IV.MML1.EHN. ML:1.0 0.000117 0.2 AML other m 2023-04-24T05:08:56.09
IV.ASSB.HHN. ML:0.8 0.0000591 0.76 AML other m 2023-04-24T05:08:57.49
IV.ASSB.HHE. ML:0.8 0.0000504 0.56 AML other m 2023-04-24T05:08:57.55
IV.FDMO.HHN. ML:0.7 0.0000393 0.16 AML other m 2023-04-24T05:08:58.43
IV.FDMO.HHE. ML:0.5 0.000023 0.44 AML other m 2023-04-24T05:08:58.58
IV.NRCA.HHN. ML:0.8 0.000030449999999999998 0.12 AML other m 2023-04-24T05:09:02.71
IV.NRCA.HHE. ML:0.7 0.000021900000000000004 0.46 AML other m 2023-04-24T05:09:07.73
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