Earthquake with magnitude of ML 0.4 on date 21-02-2023 and time 13:08:32 (UTC) in region 2 km NE Preci (PG)

A magnitude ML 0.4 earthquake occured in region: 2 km NE Preci (PG), on

  • 21-02-2023 13:08:32 (UTC)
  • 21-02-2023 14:08:32 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8920, 13.0550 at 15 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
Preci PG 2 724 724
Visso MC 5 1107 1831
Castelsantangelo sul Nera MC 8 281 2112
Ussita MC 9 444 2556
Sellano PG 10 1079 3635
Norcia PG 11 4957 8592
Monte Cavallo MC 12 145 8737
Cerreto di Spoleto PG 14 1075 9812
Fiordimonte MC 16 202 10014
Pieve Torina MC 17 1458 11472
Bolognola MC 18 142 11614
Fiastra MC 18 559 12173
Acquacanina MC 18 121 12294
Pievebovigliana MC 19 866 13160
Cascia PG 20 3217 16377

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km E of Foligno (57155 inhabitants)
50 Km NE of Terni (111501 inhabitants)
59 Km W of Teramo (54892 inhabitants)
59 Km E of Perugia (166134 inhabitants)
66 Km NW of L'Aquila (69753 inhabitants)
89 Km SW of Ancona (100861 inhabitants)
94 Km NE of Viterbo (67173 inhabitants)
99 Km W of Montesilvano (53738 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 0.4 2023-02-21
13:08:32
42.8923 13.0553 15 2024-03-01
17:18:00
Bollettino Sismico Italiano INGV 115688081
Reviewed
Rev100
ML 0.3 2023-02-21
13:08:33
42.9002 13.0613 14 2023-02-21
13:33:30
Sala Sismica INGV-Roma 114661631
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-02-21 13:08:32 ± 0.12
Latitude 42.8923 ± 0.0054
Longitude 13.0553 ± 0.0074
Depth (km) 15 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 115688081

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 679
Semi-minor axis of confidence ellipse (meter) 63
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 223
Circular confidence region, given by single value of horizontal uncertainty (meter) 680.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 102
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.37861
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 9
Magnitudes information

ML:0.4

Field Value
Value 0.4
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 115688081
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-03-24 08:47:40

ML:0.3

Field Value
Value 0.3
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 114661631
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-02-21 13:33:30
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IT.RMMM.HGZ. 2023-02-21T13:08:50.19 3.0 negative manual P 0 0
7F.SIB1.EHE. 2023-02-21T13:08:40.12 0.6 undecidable manual S 89 17.4714 120 0.06 51
IV.ARRO.EHZ. 2023-02-21T13:08:40.43 0.6 undecidable manual P 214 42.0246 98 -0.1 48
IV.CESI.HHE. 2023-02-21T13:08:40.08 0.6 undecidable manual S 316 17.4714 120 0.01 51
7F.SIB2.EHE. 2023-02-21T13:08:40.70 0.6 undecidable manual S 90 20.1687 115 -0.01 50
7F.SIB3.EHN. 2023-02-21T13:08:39.95 0.6 undecidable manual S 96 17.5713 119 -0.13 50
IV.FDMO.HHZ. 2023-02-21T13:08:39.66 0.3 undecidable manual S 9 16.1727 122 -0.11 75
IV.GUMA.HHZ. 2023-02-21T13:08:38.39 0.6 undecidable manual P 50 29.5482 104 -0.25 47
IV.MC2.EHZ. 2023-02-21T13:08:38.77 0.3 undecidable manual S 79 11.0778 136 0.06 77
7F.SIB2.EHE. 2023-02-21T13:08:37.52 0.1 undecidable manual P 90 20.1687 115 0.24 97
IV.NRCA.HHZ. 2023-02-21T13:08:37.96 0.3 undecidable manual S 144 8.0808 146 -0.25 75
IV.CESI.HHE. 2023-02-21T13:08:36.78 0.1 undecidable manual P 316 17.4714 120 -0.12 100
IV.NRCA.HHZ. 2023-02-21T13:08:36.18 0.1 undecidable manual P 144 8.0808 146 0.34 96
7F.SIB3.EHN. 2023-02-21T13:08:36.62 0.6 undecidable manual P 96 17.5713 119 -0.29 48
IV.FDMO.HHZ. 2023-02-21T13:08:36.95 0.1 undecidable manual P 9 16.1727 122 0.21 98
7F.SIB1.EHE. 2023-02-21T13:08:36.62 0.3 undecidable manual P 89 17.4714 120 -0.28 72
IV.MC2.EHZ. 2023-02-21T13:08:36.22 0.3 undecidable manual P 79 11.0778 136 0.1 76
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:0.8 0.00006405 0.14 AML other m 2023-02-21T13:08:38.07
IV.NRCA.HHE. ML:0.4 0.000025500000000000003 0.2 AML other m 2023-02-21T13:08:38.17
IV.FDMO.HHE. ML:0.1 0.00001021481 0.6656 AML other m 2023-02-21T13:08:39.70
IV.FDMO.HHN. ML:0.3 0.0000134647575 0.8192 AML other m 2023-02-21T13:08:40.15
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