Earthquake with magnitude of ML 0.7 on date 08-08-2023 and time 20:45:25 (UTC) in region 6 km NE Castelsantangelo sul Nera (MC)

A magnitude ML 0.7 earthquake occured in region: 6 km NE Castelsantangelo sul Nera (MC), on

  • 08-08-2023 20:45:25 (UTC)
  • 08-08-2023 22:45:25 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9240, 13.2200 at 8 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
Castelsantangelo sul Nera MC 6 281 281
Ussita MC 7 444 725
Bolognola MC 8 142 867
Montemonaco AP 9 604 1471
Montefortino FM 10 1178 2649
Visso MC 11 1107 3756
Acquacanina MC 13 121 3877
Amandola FM 13 3629 7506
Montegallo AP 13 523 8029
Fiastra MC 14 559 8588
Sarnano MC 14 3264 11852
Preci PG 16 724 12576
Comunanza AP 16 3166 15742
Fiordimonte MC 17 202 15944
Norcia PG 18 4957 20901
Arquata del Tronto AP 18 1178 22079
Gualdo MC 19 815 22894
Pievebovigliana MC 19 866 23760
Pieve Torina MC 19 1458 25218
Monte Cavallo MC 19 145 25363
Palmiano AP 20 196 25559

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km E of Foligno (57155 inhabitants)
49 Km NW of Teramo (54892 inhabitants)
62 Km NE of Terni (111501 inhabitants)
65 Km N of L'Aquila (69753 inhabitants)
71 Km E of Perugia (166134 inhabitants)
81 Km SW of Ancona (100861 inhabitants)
89 Km NW of Montesilvano (53738 inhabitants)
96 Km NW of Pescara (121014 inhabitants)
100 Km NW of Chieti (51815 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 2023-08-08
20:45:25
42.9237 13.2202 8 2023-08-08
20:50:47
Sala Sismica INGV-Roma 119952761
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-08-08 20:45:25 ± 0.28
Latitude 42.9237 ± 0.0045
Longitude 13.2202 ± 0.0086
Depth (km) 8 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 119952761

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 630
Semi-minor axis of confidence ellipse (meter) 443
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 226
Circular confidence region, given by single value of horizontal uncertainty (meter) 630.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 114
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.26260
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:0.7

Field Value
Value 0.7
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 119952761
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-08-08 20:50:47
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MML1.EHZ. 2023-08-08T20:45:35.84 0.3 undecidable manual S 316 29.1486 105 0.14 73
IV.CSP1.EHZ. 2023-08-08T20:45:32.43 0.1 undecidable manual S 356 18.6702 113 0.15 99
IV.SACR.HHZ. 2023-08-08T20:45:32.92 3.0 negative manual P 0 0
IV.FRON.EHZ. 2023-08-08T20:45:32.20 3.0 undecidable manual Pn -0.02 0
IV.MML1.EHZ. 2023-08-08T20:45:31.24 1.0 undecidable manual P 316 29.1486 105 -0.03 25
IV.FDMO.HHZ. 2023-08-08T20:45:31.42 0.3 undecidable manual S 319 16.5723 116 -0.17 74
IV.MMO1.EHZ. 2023-08-08T20:45:29.46 0.3 undecidable manual S 107 9.0798 132 0.04 77
IV.CSP1.EHZ. 2023-08-08T20:45:29.21 1.0 undecidable manual P 356 18.6702 113 -0.08 25
IV.GUMA.HHZ. 2023-08-08T20:45:29.54 1.0 positive manual P 31 18.0708 114 0.37 24
IV.FDMO.HHZ. 2023-08-08T20:45:28.65 0.1 undecidable manual P 319 16.5723 116 -0.25 97
IV.NRCA.HHZ. 2023-08-08T20:45:28.49 0.1 undecidable manual P 221 13.1757 121 0.19 99
IV.MMO1.EHZ. 2023-08-08T20:45:27.48 0.1 undecidable manual P 107 9.0798 132 -0.16 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MMO1.EHN. ML:0.6 0.0000625 0.3 AML other m 2023-08-08T20:45:29.58
IV.MMO1.EHE. ML:0.5 0.00004355 0.68 AML other m 2023-08-08T20:45:30.91
IV.NRCA.HHE. ML:1.0 0.00011265 0.4 AML other m 2023-08-08T20:45:31.91
IV.NRCA.HHN. ML:0.8 0.00007000000000000001 1.64 AML other m 2023-08-08T20:45:31.12
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