Earthquake with magnitude of ML 1.2 on date 19-08-2021 and time 01:15:38 (Italy) in region 8 km E Valtopina (PG)

A magnitude ML 1.2 earthquake occured in region: 8 km E Valtopina (PG), on

  • 18-08-2021 23:15:38 (UTC)
  • 19-08-2021 01:15:38 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0400, 12.8540 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Valtopina PG 8 1398 1398
Serravalle di Chienti MC 9 1070 2468
Nocera Umbra PG 10 5839 8307
Monte Cavallo MC 13 145 8452
Sefro MC 14 422 8874
Foligno PG 15 57155 66029
Spello PG 16 8645 74674
Pieve Torina MC 16 1458 76132
Muccia MC 16 915 77047
Sellano PG 18 1079 78126
Fiuminata MC 18 1402 79528
Pioraco MC 19 1134 80662
Pievebovigliana MC 19 866 81528
Fiordimonte MC 19 202 81730
Assisi PG 20 28299 110029
Trevi PG 20 8469 118498

Municipalities with at least 50000 inhabitants

An earthquake occurred to
15 Km NE of Foligno (57155 inhabitants)
39 Km E of Perugia (166134 inhabitants)
56 Km NE of Terni (111501 inhabitants)
81 Km NW of Teramo (54892 inhabitants)
84 Km SW of Ancona (100861 inhabitants)
89 Km NW of L'Aquila (69753 inhabitants)
90 Km S of Fano (60888 inhabitants)
92 Km SE of Arezzo (99543 inhabitants)
92 Km NE of Viterbo (67173 inhabitants)
97 Km S of Pesaro (94582 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 1.2 2021-08-18
23:15:38
43.0402 12.8543 11 2021-12-29
11:12:28
Bollettino Sismico Italiano INGV 95235701
Reviewed
Rev100
ML 1.2 2021-08-18
23:15:38
43.038 12.8547 11 2021-08-18
23:22:18
Sala Sismica INGV-Roma 94349841
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-08-18 23:15:38 ± 0.03
Latitude 43.0402 ± 0.0018
Longitude 12.8543 ± 0.0025
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 95235701

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 206
Semi-minor axis of confidence ellipse (meter) 143
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 51
Circular confidence region, given by single value of horizontal uncertainty (meter) 210.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 50
Number of associated phases, regardless of their use for origin computation 45
Number of defining phases 45
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) 0.05126
Epicentral distance of station farthest from the epicenter (degree) 0.60434
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 23
Magnitudes information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 22
Type of magnitude ML
Reference to an origin 94349841
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-08-18 23:22:18

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 22
Type of magnitude ML
Reference to an origin 95235701
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-09-09 13:28:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PIEI.HHZ. 2021-08-18T23:15:57.14 0.3 undecidable manual S 335 60.6948 50 0.21 66
IV.CESX.HHE. 2021-08-18T23:15:55.05 0.6 undecidable manual S 205 52.6029 50 0.29 44
IV.ARVD.HHZ. 2021-08-18T23:15:54.51 0.6 undecidable manual S 8 51.3153 50 0.1 46
IV.LNSS.HNZ. 2021-08-18T23:15:54.42 0.3 undecidable manual S 163 50.8158 50 0.14 69
IV.ARRO.EHZ. 2021-08-18T23:15:54.90 0.6 undecidable manual S 188 51.6039 50 0.4 43
IV.CING.HHZ. 2021-08-18T23:15:53.42 0.3 undecidable manual S 36 46.3203 50 0.34 66
IV.GAVE.EHZ. 2021-08-18T23:15:51.00 0.6 undecidable manual S 175 38.7279 50 -0.05 48
IV.GUMA.HHZ. 2021-08-18T23:15:51.36 0.3 undecidable manual S 86 39.0276 50 0.21 69
IV.MMO1.EHZ. 2021-08-18T23:15:51.69 0.3 undecidable manual S 112 41.4252 50 -0.09 71
IV.EL6.EHZ. 2021-08-18T23:15:50.83 0.3 undecidable manual S 32 37.8288 50 0.01 72
IV.MOMA.HHZ. 2021-08-18T23:15:50.13 0.3 undecidable manual S 221 34.9428 50 0.09 71
IV.MURB.HHZ. 2021-08-18T23:15:50.69 0.3 undecidable manual S 313 36.3414 50 0.26 69
IV.NARO.HHZ. 2021-08-18T23:15:49.88 0.3 undecidable manual P 341 67.0773 50 -0.11 67
IV.MC2.EHZ. 2021-08-18T23:15:49.03 0.3 undecidable manual S 118 30.6471 50 0.12 71
IV.FOSV.EHZ. 2021-08-18T23:15:48.88 0.3 undecidable manual S 345 29.2485 50 0.36 68
IV.NRCA.HHZ. 2021-08-18T23:15:48.94 0.3 undecidable manual S 137 31.1466 50 -0.1 72
IV.CSP1.EHZ. 2021-08-18T23:15:48.44 0.3 undecidable manual S 78 28.9488 50 -0.02 73
IV.PIEI.HHZ. 2021-08-18T23:15:48.82 0.1 undecidable manual P 335 60.6948 50 -0.19 89
IV.ARRO.EHZ. 2021-08-18T23:15:47.68 0.6 undecidable manual P 188 51.6039 50 0.07 46
IV.ATCC.EHZ. 2021-08-18T23:15:47.04 0.3 undecidable manual S 313 23.6541 50 0 74
IV.CESX.HHE. 2021-08-18T23:15:47.55 0.6 undecidable manual P 205 52.6029 50 -0.21 45
IV.ARVD.HHZ. 2021-08-18T23:15:47.20 0.3 undecidable manual P 8 51.3153 50 -0.36 66
IV.LNSS.HNZ. 2021-08-18T23:15:47.34 0.1 undecidable manual P 163 50.8158 50 -0.14 92
IV.CING.HHZ. 2021-08-18T23:15:46.63 0.3 undecidable manual P 36 46.3203 50 -0.16 69
IV.MURB.HHZ. 2021-08-18T23:15:45.18 0.3 undecidable manual P 313 36.3414 50 -0.08 71
IV.MMO1.EHZ. 2021-08-18T23:15:45.77 0.3 undecidable manual P 112 41.4252 50 -0.26 68
IV.FDMO.HHZ. 2021-08-18T23:15:45.52 0.3 undecidable manual S 91 18.87 120 -0.23 71
IV.EL6.EHZ. 2021-08-18T23:15:45.33 0.3 undecidable manual P 32 37.8288 50 -0.16 70
IV.GAVE.EHZ. 2021-08-18T23:15:45.54 0.3 undecidable manual P 175 38.7279 50 -0.08 71
IV.GUMA.HHZ. 2021-08-18T23:15:45.87 0.3 undecidable manual P 86 39.0276 50 0.19 69
IV.ASSB.HHZ. 2021-08-18T23:15:44.71 0.3 undecidable manual S 271 15.873 124 -0.15 73
IV.CSP1.EHZ. 2021-08-18T23:15:44.05 0.3 positive manual P 78 28.9488 50 -0.08 72
IV.NRCA.HHZ. 2021-08-18T23:15:44.21 0.3 undecidable manual P 137 31.1466 50 -0.25 70
IT.MTCL.HGZ. 2021-08-18T23:15:44.21 0.6 undecidable manual S 113 12.876 130 0.18 49
IV.MOMA.HHZ. 2021-08-18T23:15:44.95 0.3 undecidable manual P 221 34.9428 50 -0.08 71
IV.MC2.EHZ. 2021-08-18T23:15:44.25 0.3 undecidable manual P 118 30.6471 50 -0.13 71
IV.FOSV.EHZ. 2021-08-18T23:15:43.88 0.6 undecidable manual P 345 29.2485 50 -0.28 46
IV.MML1.EHZ. 2021-08-18T23:15:43.94 0.3 undecidable manual S 49 12.4764 131 -0.01 75
IV.ATCC.EHZ. 2021-08-18T23:15:43.17 0.3 undecidable manual P 313 23.6541 50 -0.13 72
IV.ASSB.HHZ. 2021-08-18T23:15:42.04 0.1 positive manual P 271 15.873 124 -0.01 100
IV.CESI.HHZ. 2021-08-18T23:15:42.66 0.3 undecidable manual S 134 5.6943 152 0.22 73
IV.FDMO.HHZ. 2021-08-18T23:15:42.45 0.3 undecidable manual P 91 18.87 120 -0.11 73
IT.MTCL.HGZ. 2021-08-18T23:15:41.72 0.3 undecidable manual P 113 12.876 130 0.15 73
IV.MML1.EHZ. 2021-08-18T23:15:41.67 0.3 negative manual P 49 12.4764 131 0.15 73
IV.CESI.HHZ. 2021-08-18T23:15:40.93 0.1 undecidable manual P 134 5.6943 152 0.28 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHN. ML:0.9 0.00012014999999999999 0.06 AML other m 2021-08-18T23:15:42.88
IV.CESI.HHE. ML:1.1 0.00020400000000000003 0.16 AML other m 2021-08-18T23:15:42.91
IV.MML1.EHE. ML:1.4 0.0002535 0.1 AML other m 2021-08-18T23:15:44.37
IV.MML1.HNE. ML:1.4 0.0002485 0.1 AML other m 2021-08-18T23:15:44.37
IV.MML1.HNN. ML:1.4 0.000261 0.8 AML other m 2021-08-18T23:15:44.29
IV.MML1.EHN. ML:1.2 0.000184 0.8 AML other m 2021-08-18T23:15:44.29
IV.ASSB.HHE. ML:1.4 0.0002105 0.28 AML other m 2021-08-18T23:15:45.31
IV.ASSB.HHN. ML:1.4 0.000228 0.14 AML other m 2021-08-18T23:15:45.46
IV.FDMO.HHN. ML:0.8 0.0000511 1.14 AML other m 2021-08-18T23:15:45.33
IV.FDMO.HHE. ML:0.9 0.0000596 0.74 AML other m 2021-08-18T23:15:46.04
IV.ATCC.EHE. ML:1.1 0.00006759999999999999 0.9 AML other m 2021-08-18T23:15:47.82
IV.ATCC.EHN. ML:1.0 0.00006670000000000001 1.52 AML other m 2021-08-18T23:15:47.89
IV.NRCA.HHN. ML:1.2 0.0000802 0.14 AML other m 2021-08-18T23:15:49.12
IV.NRCA.HHE. ML:1.1 0.00005965 1.34 AML other m 2021-08-18T23:15:49.23
IV.MOMA.HHN. ML:1.1 0.000053099999999999996 0.2 AML other m 2021-08-18T23:15:51.31
IV.MOMA.HHE. ML:1.1 0.00005415 1.28 AML other m 2021-08-18T23:15:51.32
IV.EL6.EHE. ML:1.6 0.00013515 0.14 AML other m 2021-08-18T23:15:51.42
IV.EL6.EHN. ML:1.4 0.00009915 0.12 AML other m 2021-08-18T23:15:51.54
IV.GAVE.EHE. ML:1.3 0.00006295000000000001 0.52 AML other m 2021-08-18T23:15:51.81
IV.MURB.HHE. ML:1.3 0.00006785 1.12 AML other m 2021-08-18T23:15:52.86
IV.GAVE.EHN. ML:1.4 0.00008319999999999999 0.5 AML other m 2021-08-18T23:15:52.84
IV.MURB.HHN. ML:1.4 0.00009465 1.72 AML other m 2021-08-18T23:15:54.03
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