Earthquake with magnitude of ML 0.8 on date 15-04-2021 and time 08:22:15 (UTC) in region 3 km NE Preci (PG)

A magnitude ML 0.8 earthquake occured in region: 3 km NE Preci (PG), on

  • 15-04-2021 08:22:15 (UTC)
  • 15-04-2021 10:22:15 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9040, 13.0580 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
Preci PG 3 724 724
Visso MC 4 1107 1831
Castelsantangelo sul Nera MC 8 281 2112
Ussita MC 8 444 2556
Sellano PG 11 1079 3635
Monte Cavallo MC 11 145 3780
Norcia PG 13 4957 8737
Cerreto di Spoleto PG 15 1075 9812
Fiordimonte MC 15 202 10014
Pieve Torina MC 16 1458 11472
Fiastra MC 17 559 12031
Acquacanina MC 17 121 12152
Bolognola MC 17 142 12294
Pievebovigliana MC 18 866 13160
Muccia MC 20 915 14075

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km E of Foligno (57155 inhabitants)
51 Km NE of Terni (111501 inhabitants)
59 Km E of Perugia (166134 inhabitants)
59 Km W of Teramo (54892 inhabitants)
67 Km NW of L'Aquila (69753 inhabitants)
88 Km SW of Ancona (100861 inhabitants)
95 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
Reviewed
Rev100
ML 0.8 2021-04-15
08:22:15
42.9042 13.0582 8 2021-04-15
08:28:10
Sala Sismica INGV-Roma 89112701
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-04-15 08:22:15 ± 0.15
Latitude 42.9042 ± 0.0036
Longitude 13.0582 ± 0.0061
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 89112701

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 481
Semi-minor axis of confidence ellipse (meter) 353
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 113
Circular confidence region, given by single value of horizontal uncertainty (meter) 480.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 180
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.11
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.24372
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 4
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 89112701
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-04-15 08:28:10
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IX.STN3.HHZ.02 2021-04-15T08:23:36.36 3.0 undecidable manual Sn -1.57 0
IV.IACL.HHZ. 2021-04-15T08:23:26.80 3.0 undecidable manual Pg 13.23 0
CH.MUGIO.HHZ. 2021-04-15T08:23:20.31 3.0 positive manual Pg 18.540001 0
IV.MBFT.HHZ. 2021-04-15T08:23:19.74 3.0 negative manual Pn 1.47 0
MN.TUE.HHZ. 2021-04-15T08:23:13.55 3.0 undecidable manual Pg 7.39 0
IV.TDS.HHZ. 2021-04-15T08:23:09.67 3.0 undecidable manual Pn -1.13 0
IT.PLTA.HNZ. 2021-04-15T08:23:05.23 3.0 undecidable manual Sn -0.43 0
IV.ZEN8.EHZ. 2021-04-15T08:22:59.28 3.0 undecidable manual Pg 9.2 0
IV.SARZ.HHZ. 2021-04-15T08:22:54.22 3.0 negative manual Pn 1.49 0
MN.TRI.HHZ. 2021-04-15T08:22:54.94 3.0 positive manual Pg 4.48 0
IV.ZONE.HHZ. 2021-04-15T08:22:51.19 3.0 undecidable manual Pn -3.01 0
SL.LJU.BHZ. 2021-04-15T08:22:49.77 3.0 undecidable manual Pn -7.78 0
IV.VENL.HNZ. 2021-04-15T08:22:46.27 3.0 negative manual Pg 2.23 0
IV.FIR.HHZ. 2021-04-15T08:22:42.72 3.0 undecidable manual Sn -1.21 0
IV.PE3.EHZ. 2021-04-15T08:22:38.74 3.0 undecidable manual Sg 2.08 0
IV.RM33.HNZ. 2021-04-15T08:22:38.90 3.0 undecidable manual Sn 1.9 0
IV.NRCA.HNZ. 2021-04-15T08:22:37.92 3.0 undecidable manual Sg 4.16 0
IV.GAVE.EHZ. 2021-04-15T08:22:25.23 0.3 undecidable manual S 210 27.0507 107 -0.03 74
IV.RM33.HNZ. 2021-04-15T08:22:25.95 3.0 undecidable manual Pg 2.87 0
IV.FIAM.HHZ. 2021-04-15T08:22:24.53 3.0 negative manual Pn 0.36 0
IV.CSP1.EHZ. 2021-04-15T08:22:24.11 0.6 undecidable manual S 30 23.9538 109 -0.13 48
IV.FDMO.HHZ. 2021-04-15T08:22:21.38 0.3 undecidable manual S 9 14.874 119 0.04 75
IV.GAVE.EHZ. 2021-04-15T08:22:21.12 0.1 undecidable manual P 210 27.0507 107 0.01 99
IV.CESI.HHZ. 2021-04-15T08:22:21.80 0.6 undecidable manual S 312 16.7721 116 -0.12 49
IV.CSP1.EHZ. 2021-04-15T08:22:20.44 0.1 undecidable manual P 30 23.9538 109 -0.09 98
IV.FDMO.HHZ. 2021-04-15T08:22:19.02 0.1 undecidable manual P 9 14.874 119 0.17 97
IV.CESI.HHZ. 2021-04-15T08:22:19.21 0.1 undecidable manual P 312 16.7721 116 0.03 100
IV.MMUR.HNZ. 2021-04-15T08:22:17.58 3.0 negative manual P -4.71 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHN. ML:0.8 0.00005830000000000001 1.12 AML other m 2021-04-15T08:22:21.56
IV.FDMO.HHE. ML:0.6 0.000042999999999999995 0.42 AML other m 2021-04-15T08:22:21.74
IV.CESI.HHN. ML:1.1 0.00010435 0.28 AML other m 2021-04-15T08:22:22.10
IV.CESI.HHE. ML:0.7 0.00005075 0.96 AML other m 2021-04-15T08:22:22.42
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