Earthquake with magnitude of ML 0.4 on date 30-03-2021 and time 11:35:58 (UTC) in region 4 km N Preci (PG)

A magnitude ML 0.4 earthquake occured in region: 4 km N Preci (PG), on

  • 30-03-2021 11:35:58 (UTC)
  • 30-03-2021 13:35:58 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9120, 13.0350 at 11 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 4 724 724
Visso MC 5 1107 1831
Sellano PG 9 1079 2910
Ussita MC 9 444 3354
Monte Cavallo MC 10 145 3499
Castelsantangelo sul Nera MC 10 281 3780
Norcia PG 14 4957 8737
Cerreto di Spoleto PG 14 1075 9812
Fiordimonte MC 15 202 10014
Pieve Torina MC 15 1458 11472
Fiastra MC 17 559 12031
Pievebovigliana MC 17 866 12897
Acquacanina MC 18 121 13018
Bolognola MC 18 142 13160
Muccia MC 19 915 14075
Serravalle di Chienti MC 19 1070 15145

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km E of Foligno (57155 inhabitants)
50 Km NE of Terni (111501 inhabitants)
57 Km E of Perugia (166134 inhabitants)
62 Km W of Teramo (54892 inhabitants)
69 Km NW of L'Aquila (69753 inhabitants)
88 Km SW of Ancona (100861 inhabitants)
94 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
Reviewed
Rev100
ML 0.4 2021-03-30
11:35:58
42.9117 13.0348 11 2021-03-30
12:24:09
Sala Sismica INGV-Roma 88614861
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-03-30 11:35:58 ± 0.11
Latitude 42.9117 ± 0.0045
Longitude 13.0348 ± 0.0074
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 88614861

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 686
Semi-minor axis of confidence ellipse (meter) 358
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 240
Circular confidence region, given by single value of horizontal uncertainty (meter) 690.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 171
Number of associated phases, regardless of their use for origin computation 38
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.21854
Number of stations at which the event was observed 32
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.4

Field Value
Value 0.4
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 88614861
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-03-30 12:24:09
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.EVRN.HNZ. 2021-03-30T11:37:35.03 3.0 undecidable manual Pg 20.01 0
AC.VLO.HHZ. 2021-03-30T11:37:33.11 3.0 undecidable manual Pg 14.56 0
IV.HVIT.HHZ. 2021-03-30T11:37:32.09 3.0 positive manual Pg 10.43 0
IV.ESAL.HHZ. 2021-03-30T11:37:27.47 3.0 positive manual Pg 13.29 0
OT.OT12.EHZ. 2021-03-30T11:37:23.74 3.0 undecidable manual Sn 3.15 0
IV.MTMR.HNZ. 2021-03-30T11:37:22.83 3.0 undecidable manual Sg 4.73 0
IV.SCIAC.HHZ. 2021-03-30T11:37:22.77 3.0 undecidable manual Pg 11.69 0
IV.GIZZ.HHZ. 2021-03-30T11:37:20.86 3.0 positive manual Pg 15.54 0
IV.ECTS.HHZ. 2021-03-30T11:37:19.71 3.0 undecidable manual Pg 7.18 0
IV.SPS2.HHZ. 2021-03-30T11:37:17.49 3.0 positive manual Pg 14.7 0
IV.PLLN.EHZ. 2021-03-30T11:37:16.05 3.0 negative manual Pg 8.71 0
IV.CRJA.HHZ. 2021-03-30T11:37:11.59 3.0 undecidable manual Pn 4.53 0
IV.CORL.HHZ. 2021-03-30T11:37:03.16 3.0 positive manual Pn -3.21 0
IV.FREG.EHZ. 2021-03-30T11:37:03.14 3.0 undecidable manual Sn -1.77 0
IV.VTIR.HHZ. 2021-03-30T11:37:03.81 3.0 undecidable manual Sn -9.38 0
IV.ZEN8.EHZ. 2021-03-30T11:37:00.78 3.0 undecidable manual Sg 2.23 0
IV.MBAL.EHZ. 2021-03-30T11:36:56.41 3.0 undecidable manual Sn -2.87 0
GU.GORR.HHZ. 2021-03-30T11:36:46.64 3.0 undecidable manual Sn -6.54 0
OE.WTTA.HHZ. 2021-03-30T11:36:41.00 3.0 positive manual Pn -5.28 0
IV.VIVA.HHZ. 2021-03-30T11:36:34.48 3.0 undecidable manual Sn -3.11 0
IV.MILN.HNZ. 2021-03-30T11:36:34.19 3.0 undecidable manual Pn 2.96 0
GU.CANO.HHZ. 2021-03-30T11:36:32.04 3.0 positive manual Pn 2.47 0
IV.SENA.HHZ. 2021-03-30T11:36:30.87 3.0 undecidable manual Pn -6.18 0
IV.SARZ.HHZ. 2021-03-30T11:36:27.00 3.0 undecidable manual Pn -0.81 0
IV.CSP1.EHZ. 2021-03-30T11:36:07.22 0.3 undecidable manual S 35 24.2535 50 -0.02 73
IV.CESI.HHZ. 2021-03-30T11:36:04.49 0.3 undecidable manual S 314 14.7741 126 -0.13 73
IV.FDMO.HHZ. 2021-03-30T11:36:04.35 0.3 undecidable manual S 17 14.4744 127 -0.19 72
IV.NRCA.HNZ. 2021-03-30T11:36:03.34 0.3 undecidable manual S 143 10.7781 135 -0.23 72
IV.CSP1.EHZ. 2021-03-30T11:36:03.38 0.1 undecidable manual P 35 24.2535 50 -0.06 97
IT.MTCL.HGN. 2021-03-30T11:36:03.09 0.3 undecidable manual S 343 9.5793 139 -0.19 73
IV.VISG.HHZ. 2021-03-30T11:36:03.33 3.0 undecidable manual P -0.67 0
IV.CESI.HHZ. 2021-03-30T11:36:02.08 0.3 undecidable manual P 314 14.7741 126 0.15 72
IV.FEMA.HNN. 2021-03-30T11:36:02.86 0.6 undecidable manual S 12 5.6943 152 0.34 47
IT.MTCL.HGN. 2021-03-30T11:36:01.22 0.3 undecidable manual P 343 9.5793 139 0.06 74
IV.MC2.EHE. 2021-03-30T11:36:01.75 0.3 undecidable manual P 90 12.5763 131 0.17 72
IV.FDMO.HHZ. 2021-03-30T11:36:01.91 0.1 undecidable manual P 17 14.4744 127 0.03 99
IV.NRCA.HNZ. 2021-03-30T11:36:01.31 0.1 undecidable manual P 143 10.7781 135 -0.01 100
IV.FEMA.HNN. 2021-03-30T11:36:00.88 0.1 undecidable manual P 12 5.6943 152 0.17 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHN. ML:0.3 0.0000222 0.3 AML other m 2021-03-30T11:36:04.51
IV.FDMO.HHE. ML:0.7 0.0000462 0.12 AML other m 2021-03-30T11:36:04.66
IV.CESI.HHE. ML:0.2 0.00001390656 0.1792 AML other m 2021-03-30T11:36:04.69
IV.CESI.HHN. ML:0.2 0.000016098439999999998 0.2816 AML other m 2021-03-30T11:36:04.84
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