Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 09-03-2021 and time 08:13:28 (Italy) in region 1 km NW Preci (PG)

A magnitude ML 1.4 earthquake occured in region: 1 km NW Preci (PG), on

  • 09-03-2021 07:13:28 (UTC)
  • 09-03-2021 08:13:28 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8870, 13.0340 at 11 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

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 1 724 724
Visso MC 7 1107 1831
Sellano PG 9 1079 2910
Castelsantangelo sul Nera MC 10 281 3191
Ussita MC 11 444 3635
Norcia PG 12 4957 8592
Cerreto di Spoleto PG 12 1075 9667
Monte Cavallo MC 12 145 9812
Fiordimonte MC 17 202 10014
Pieve Torina MC 18 1458 11472
Cascia PG 19 3217 14689
Vallo di Nera PG 19 364 15053
Fiastra MC 19 559 15612
Acquacanina MC 20 121 15733
Bolognola MC 20 142 15875
Pievebovigliana MC 20 866 16741

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km E of Foligno (57155 inhabitants)
48 Km NE of Terni (111501 inhabitants)
58 Km E of Perugia (166134 inhabitants)
60 Km W of Teramo (54892 inhabitants)
67 Km NW of L'Aquila (69753 inhabitants)
90 Km SW of Ancona (100861 inhabitants)
92 Km NE of Viterbo (67173 inhabitants)
100 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 1.4 2021-03-09
07:13:28		 42.8868 13.0343 11 2021-07-12
16:55:02		 Bollettino Sismico Italiano INGV 88183131
Reviewed
Rev100 		ML 1.4 2021-03-09
07:13:28		 42.8912 13.0397 11 2021-03-09
07:29:14		 Sala Sismica INGV-Roma 87938001
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-03-09 07:13:28 ± 0.06
Latitude 42.8868 ± 0.0036
Longitude 13.0343 ± 0.0061
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 88183131

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 495
Semi-minor axis of confidence ellipse (meter) 344
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 49
Circular confidence region, given by single value of horizontal uncertainty (meter) 490.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 77
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.07644
Epicentral distance of station farthest from the epicenter (degree) 0.44516
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 15
Type of magnitude ML
Reference to an origin 87938001
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-03-09 07:29:14

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 88183131
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-03-16 08:56:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.LNSS.HHZ. 2021-03-09T07:13:39.16 0.3 undecidable manual S 179 31.5462 50 -0.28 69
IV.MTRA.EHZ. 2021-03-09T07:13:39.76 0.3 undecidable manual S 116 32.8449 50 -0.03 73
IV.CSP1.EHZ. 2021-03-09T07:13:38.19 0.6 undecidable manual S 31 26.6511 50 0.06 49
IV.EL6.EHZ. 2021-03-09T07:13:38.35 0.3 undecidable manual P 6 49.4172 50 0.79 57
IV.MMO1.EHZ. 2021-03-09T07:13:37.25 0.3 undecidable manual S 87 23.754 50 -0.13 72
IV.MOMA.HHE. 2021-03-09T07:13:36.37 0.1 undecidable manual P 256 38.8278 50 0.43 88
IV.SMA1.EHZ. 2021-03-09T07:13:35.61 0.1 undecidable manual P 139 37.5291 50 -0.13 94
IV.CESI.HHZ. 2021-03-09T07:13:35.15 0.1 undecidable manual S 321 16.7721 122 -0.25 95
IV.FDMO.HHZ. 2021-03-09T07:13:35.11 0.1 undecidable manual S 14 17.1717 122 -0.39 92
IV.LNSS.HHZ. 2021-03-09T07:13:34.70 0.1 undecidable manual P 179 31.5462 50 -0.11 95
IV.MTRA.EHZ. 2021-03-09T07:13:34.88 0.1 undecidable manual P 116 32.8449 50 -0.13 95
IV.MC2.EHE. 2021-03-09T07:13:34.59 0.1 undecidable manual S 78 12.876 130 0.3 95
IV.CSP1.EHZ. 2021-03-09T07:13:34.01 0.1 undecidable manual P 31 26.6511 50 -0.05 98
IT.MTCL.HGZ. 2021-03-09T07:13:33.95 0.3 undecidable manual S 347 12.1767 131 -0.17 73
IV.MML1.HNE. 2021-03-09T07:13:33.81 0.3 undecidable manual P 349 25.6521 50 -0.1 73
IV.MMO1.EHZ. 2021-03-09T07:13:33.50 0.1 undecidable manual P 87 23.754 50 -0.12 96
IV.NRCA.HNZ. 2021-03-09T07:13:33.18 0.3 undecidable manual S 132 8.7801 141 -0.11 74
IV.FEMA.HNZ. 2021-03-09T07:13:33.14 0.1 undecidable manual S 8 8.4804 142 -0.08 100
IV.CESI.HHZ. 2021-03-09T07:13:32.50 0.1 negative manual P 321 16.7721 122 0.02 100
IV.FDMO.HHZ. 2021-03-09T07:13:32.55 0.1 positive manual P 14 17.1717 122 0.01 100
IV.MC2.EHE. 2021-03-09T07:13:32.07 0.1 undecidable manual P 78 12.876 130 0.23 96
IV.NRCA.HNZ. 2021-03-09T07:13:31.34 0.1 positive manual P 132 8.7801 141 0.08 100
IV.FEMA.HNZ. 2021-03-09T07:13:31.44 0.1 positive manual P 8 8.4804 142 0.22 97
IT.MTCL.HGZ. 2021-03-09T07:13:31.82 0.1 undecidable manual P 347 12.1767 131 0.08 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HNN. ML:1.6 0.0005695 0.1 AML other m 2021-03-09T07:13:33.27
IV.NRCA.HHN. ML:1.7 0.0006105 0.12 AML other m 2021-03-09T07:13:33.22
IV.NRCA.HHE. ML:1.5 0.00042249999999999997 1.86 AML other m 2021-03-09T07:13:33.93
IV.NRCA.HNE. ML:1.5 0.00039400000000000004 1.86 AML other m 2021-03-09T07:13:33.93
IV.CESI.HHE. ML:1.0 0.00008319999999999999 0.14 AML other m 2021-03-09T07:13:35.34
IV.FDMO.HHN. ML:1.3 0.0001605 0.38 AML other m 2021-03-09T07:13:35.73
IV.FDMO.HHE. ML:1.5 0.0002415 0.14 AML other m 2021-03-09T07:13:35.71
IV.CESI.HNN. ML:1.1 0.00010507851575 0.1312 AML other m 2021-03-09T07:13:35.58
IV.CESI.HHN. ML:1.2 0.00014350000000000002 0.26 AML other m 2021-03-09T07:13:35.58
IV.CESI.HNE. ML:1.2 0.00012894667500000002 1.6928 AML other m 2021-03-09T07:13:37.01
IV.CSP1.EHN. ML:1.4 0.000139809755 0.16 AML other m 2021-03-09T07:13:38.84
IV.CSP1.EHE. ML:1.3 0.00010883030000000001 0.1024 AML other m 2021-03-09T07:13:39.40
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