Earthquake with magnitude of ML 0.9 on date 12-08-2021 and time 19:14:12 (Italy) in region 4 km S Preci (PG)

A magnitude ML 0.9 earthquake occured in region: 4 km S Preci (PG), on

  • 12-08-2021 17:14:12 (UTC)
  • 12-08-2021 19:14:12 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8410, 13.0380 at 10 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 4 724 724
Norcia PG 7 4957 5681
Cerreto di Spoleto PG 10 1075 6756
Sellano PG 11 1079 7835
Visso MC 11 1107 8942
Castelsantangelo sul Nera MC 11 281 9223
Cascia PG 14 3217 12440
Ussita MC 14 444 12884
Vallo di Nera PG 16 364 13248
Poggiodomo PG 17 117 13365
Monte Cavallo MC 17 145 13510

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km E of Foligno (57155 inhabitants)
45 Km NE of Terni (111501 inhabitants)
58 Km W of Teramo (54892 inhabitants)
61 Km E of Perugia (166134 inhabitants)
62 Km NW of L'Aquila (69753 inhabitants)
90 Km NE of Viterbo (67173 inhabitants)
95 Km SW of Ancona (100861 inhabitants)
97 Km N of Guidonia Montecelio (88673 inhabitants)
98 Km W of Montesilvano (53738 inhabitants)
99 Km N of Tivoli (56533 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 0.9 2021-08-12
17:14:12
42.8408 13.0377 10 2021-12-29
11:12:31
Bollettino Sismico Italiano INGV 95596151
Reviewed
Rev100
ML 0.9 2021-08-12
17:14:12
42.86 12.984 2 2021-08-12
17:32:12
Sala Sismica INGV-Roma 94018421
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-08-12 17:14:12 ± 0.07
Latitude 42.8408 ± 0.0045
Longitude 13.0377 ± 0.0074
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 95596151

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 718
Semi-minor axis of confidence ellipse (meter) 250
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 127
Circular confidence region, given by single value of horizontal uncertainty (meter) 720.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 156
Number of associated phases, regardless of their use for origin computation 43
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.27879
Number of stations at which the event was observed 35
Number of stations from which data was used for origin computation 5
Magnitudes information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 95596151
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-09-18 17:10:11

ML:0.9

Field Value
Value 0.9
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 94018421
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-08-12 17:32:12
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MTGR.HHZ. 2021-08-12T17:15:59.28 3.0 undecidable manual Sn -6 0
IV.ILOS.HHZ. 2021-08-12T17:15:58.71 3.0 undecidable manual Sg 7.37 0
IV.LADO.EHZ. 2021-08-12T17:15:53.27 3.0 undecidable manual Sg 5.94 0
IV.EUCT.HNZ. 2021-08-12T17:15:53.93 3.0 undecidable manual Sn -5.88 0
MN.KLV.HHZ. 2021-08-12T17:15:53.85 3.0 negative manual Pn -0.32 0
IV.SERS.HHZ. 2021-08-12T17:15:40.47 3.0 undecidable manual Sn -8.96 0
IV.CET2.HHZ. 2021-08-12T17:15:36.72 3.0 undecidable manual Sg 4.54 0
MN.BLY.HHZ. 2021-08-12T17:15:34.53 3.0 undecidable manual Sg 2.93 0
MN.BNI.HHZ. 2021-08-12T17:15:33.84 3.0 negative manual Pn 4.65 0
GU.GBOS.HHZ. 2021-08-12T17:15:18.39 3.0 undecidable manual Pn 3.96 0
IV.BRSN.EHZ. 2021-08-12T17:15:11.46 3.0 undecidable manual Sg 4.39 0
IV.ESCV.HHZ. 2021-08-12T17:15:08.68 3.0 positive manual Pn -5.17 0
IV.ILOS.HHZ. 2021-08-12T17:15:06.97 3.0 positive manual Pg 2.37 0
IX.SCL3.EHZ.02 2021-08-12T17:15:01.27 3.0 undecidable manual Sn -2.08 0
IV.CET2.HHZ. 2021-08-12T17:14:57.61 3.0 undecidable manual Pg 3.77 0
IV.ZEN8.EHZ. 2021-08-12T17:14:57.81 3.0 undecidable manual Pn -4.67 0
IV.APEC.HHZ. 2021-08-12T17:14:55.20 3.0 undecidable manual Sg 5.34 0
IV.MURB.HNZ. 2021-08-12T17:14:50.01 3.0 undecidable manual Sg 6.22 0
OT.OT16.EHZ. 2021-08-12T17:14:44.02 3.0 undecidable manual Sg 5.38 0
IV.LAV9.HHZ. 2021-08-12T17:14:44.32 3.0 undecidable manual Sg 2.95 0
IV.RIBO.EHZ.01 2021-08-12T17:14:42.10 3.0 positive manual Pg 3.46 0
IV.FIR.HHZ. 2021-08-12T17:14:37.76 3.0 undecidable manual Pn -3.27 0
IX.PGN3.HHZ.02 2021-08-12T17:14:35.97 3.0 positive manual Pn -4.74 0
IV.CRTO.HHZ. 2021-08-12T17:14:34.84 3.0 negative manual Pg 3.25 0
IV.PTRJ.HNZ. 2021-08-12T17:14:32.85 3.0 undecidable manual Sn -7.63 0
IV.ATPI.EHZ. 2021-08-12T17:14:31.80 3.0 positive manual Pg 2.6 0
IV.SFI.EHZ. 2021-08-12T17:14:29.30 3.0 positive manual Pn -8.15 0
IV.PTRJ.HNZ. 2021-08-12T17:14:23.89 3.0 undecidable manual Pn -0.9 0
IV.MNTT.EHZ. 2021-08-12T17:14:23.89 3.0 undecidable manual Sn -3.91 0
IV.CSP1.EHZ. 2021-08-12T17:14:22.96 0.3 undecidable manual S 26 30.9468 50 -0.11 71
IV.FOSV.EHZ. 2021-08-12T17:14:21.21 3.0 negative manual Pn -3.91 0
IV.TERO.HHZ. 2021-08-12T17:14:21.51 3.0 undecidable manual Sn 1.4 0
IV.FDMO.HHZ. 2021-08-12T17:14:20.40 0.6 undecidable manual S 11 22.0668 114 -0.04 49
IV.MF5.EHZ. 2021-08-12T17:14:19.67 3.0 positive manual Pg 2.22 0
IV.GAVE.EHZ. 2021-08-12T17:14:19.81 0.6 undecidable manual S 215 20.2686 116 -0.05 49
IV.CSP1.EHZ. 2021-08-12T17:14:18.41 0.1 undecidable manual P 26 30.9468 50 -0.01 97
IV.MC2.EHZ. 2021-08-12T17:14:18.25 0.3 undecidable manual S 58 14.5743 124 0.09 74
IV.LRP.EHZ. 2021-08-12T17:14:18.00 3.0 undecidable manual P -2.42 0
IV.GAVE.EHZ. 2021-08-12T17:14:16.62 0.3 undecidable manual P 215 20.2686 116 0.06 74
IV.FDMO.HHZ. 2021-08-12T17:14:16.88 0.1 undecidable manual P 11 22.0668 114 -0.02 98
IV.MC2.EHZ. 2021-08-12T17:14:15.76 0.1 undecidable manual P 58 14.5743 124 0.18 96
IV.NRCA.HHZ. 2021-08-12T17:14:15.82 0.3 undecidable manual S 97 6.2937 147 -0.28 72
IV.NRCA.HHZ. 2021-08-12T17:14:14.47 0.1 undecidable manual P 97 6.2937 147 0.08 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.2 0.0002742612 1.8464 AML other m 2021-08-12T17:14:16.01
IV.NRCA.HNE. ML:1.2 0.0002767663 1.8336 AML other m 2021-08-12T17:14:16.93
IV.NRCA.HHN. ML:1.1 0.00019137725 0.1024 AML other m 2021-08-12T17:14:17.21
IV.NRCA.HNN. ML:1.1 0.0002137704 0.1024 AML other m 2021-08-12T17:14:17.33
IV.GAVE.EHN. ML:0.8 0.000046835365 0.1024 AML other m 2021-08-12T17:14:19.99
IV.GAVE.EHE. ML:0.8 0.00004680021500000001 0.1792 AML other m 2021-08-12T17:14:20.27
IV.FDMO.HHN. ML:0.4 0.00001659627 0.2176 AML other m 2021-08-12T17:14:20.82
IV.FDMO.HHE. ML:0.4 0.00001605 0.82 AML other m 2021-08-12T17:14:21.47
IV.CSP1.EHN. ML:0.8 0.0000308664455 0.2432 AML other m 2021-08-12T17:14:23.58
IV.CSP1.EHE. ML:0.6 0.00002120246 0.1408 AML other m 2021-08-12T17:14:24.17
IV.GAVE.HNN. ML:1.4 0.0002012245 1.0624 AML other m 2021-08-12T17:14:28.61
IV.GAVE.HNE. ML:1.2 0.00011043682 1.1424 AML other m 2021-08-12T17:14:31.20
IV.MF5.EHN. ML:0.7 0.000020556422499999997 1.2576 AML other m 2021-08-12T17:14:33.02
IV.MF5.EHE. ML:1.0 0.000038110789 0.6784 AML other m 2021-08-12T17:14:41.57
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