Earthquake with magnitude of ML 0.9 on date 26-04-2023 and time 13:11:15 (Italy) in region 2 km SW Fiastra (MC)

A magnitude ML 0.9 earthquake occured in region: 2 km SW Fiastra (MC), on

  • 26-04-2023 11:11:15 (UTC)
  • 26-04-2023 13:11:15 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0260, 13.1400 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
Fiastra MC 2 559 559
Acquacanina MC 3 121 680
Fiordimonte MC 4 202 882
Pievebovigliana MC 6 866 1748
Pieve Torina MC 8 1458 3206
Bolognola MC 8 142 3348
Ussita MC 9 444 3792
Muccia MC 10 915 4707
Visso MC 11 1107 5814
Monte Cavallo MC 12 145 5959
Sarnano MC 13 3264 9223
Cessapalombo MC 14 512 9735
Camerino MC 14 6974 16709
Caldarola MC 15 1823 18532
Castelsantangelo sul Nera MC 15 281 18813
Camporotondo di Fiastrone MC 16 563 19376
Serravalle di Chienti MC 16 1070 20446
Gualdo MC 17 815 21261
San Ginesio MC 17 3498 24759
Belforte del Chienti MC 17 1886 26645
Serrapetrona MC 17 966 27611
Preci PG 18 724 28335
Amandola FM 18 3629 31964
Montefortino FM 19 1178 33142

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km E of Foligno (57155 inhabitants)
62 Km NW of Teramo (54892 inhabitants)
62 Km E of Perugia (166134 inhabitants)
65 Km NE of Terni (111501 inhabitants)
73 Km SW of Ancona (100861 inhabitants)
78 Km N of L'Aquila (69753 inhabitants)
92 Km S of Fano (60888 inhabitants)
100 Km NW of Montesilvano (53738 inhabitants)
100 Km S of Pesaro (94582 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 0.9 2023-04-26
11:11:15
43.0258 13.1402 8 2023-04-26
11:19:07
Sala Sismica INGV-Roma 116767061
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-26 11:11:15 ± 0.23
Latitude 43.0258 ± 0.0063
Longitude 13.1402 ± 0.0098
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 116767061

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 883
Semi-minor axis of confidence ellipse (meter) 453
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 309
Circular confidence region, given by single value of horizontal uncertainty (meter) 880.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 150
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 6
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) 0.19335
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 3
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.0
Num. used stations 2
Type of magnitude ML
Reference to an origin 116767061
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-04-26 11:19:07
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.LINA.HHZ. 2023-04-26T11:12:54.68 3.0 undecidable manual Pg 11.62 0
IV.HLNI.HHZ. 2023-04-26T11:12:30.54 3.0 negative manual Pg 6.64 0
GU.GSCL.HHZ. 2023-04-26T11:12:28.80 3.0 undecidable manual Sg 1.74 0
OT.OT15.EHZ. 2023-04-26T11:12:28.59 3.0 undecidable manual Sn 1.05 0
IV.EPZF.HHZ. 2023-04-26T11:12:26.00 3.0 positive manual Pg 8.52 0
IV.CDRU.HHZ. 2023-04-26T11:12:16.38 3.0 undecidable manual Sg -0.25 0
IV.PTCC.HHZ. 2023-04-26T11:12:14.81 3.0 negative manual Pg 9.45 0
OT.OT14.EHZ. 2023-04-26T11:12:13.32 3.0 undecidable manual Sg 10.22 0
SI.KOSI.HHZ. 2023-04-26T11:12:07.47 3.0 undecidable manual Pn -2.66 0
ST.VARA.EHZ. 2023-04-26T11:12:06.04 3.0 positive manual Pn 1.7 0
OX.DRE.HHZ. 2023-04-26T11:12:06.73 3.0 undecidable manual Pn 4.6 0
SI.LUSI.HHZ. 2023-04-26T11:12:05.89 3.0 negative manual Pn 0.19 0
IV.TDS.HHZ. 2023-04-26T11:12:04.77 3.0 undecidable manual Pg 4.35 0
IV.GIZZ.HHZ. 2023-04-26T11:11:59.79 3.0 negative manual Pn -7.78 0
IV.NRCA.HHZ. 2023-04-26T11:11:23.51 0.6 undecidable manual S 186 21.4674 111 0.14 48
IV.CSP1.EHZ. 2023-04-26T11:11:19.61 0.1 undecidable manual S 36 8.9799 132 -0.01 100
IV.NRCA.HHZ. 2023-04-26T11:11:19.86 0.3 undecidable manual P 186 21.4674 111 -0.16 71
IV.FDMO.HHZ. 2023-04-26T11:11:18.58 0.1 undecidable manual S 285 4.4955 151 -0.05 100
IV.FDMO.HHZ. 2023-04-26T11:11:17.36 0.1 undecidable manual P 285 4.4955 151 0.09 99
IV.CSP1.EHZ. 2023-04-26T11:11:17.88 0.1 undecidable manual P 36 8.9799 132 0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CSP1.EHE. ML:0.9 0.00010975 1.26 AML other m 2023-04-26T11:11:19.12
IV.CSP1.EHN. ML:0.9 0.0001215 1.26 AML other m 2023-04-26T11:11:20.04
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