Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.2 on date 22-08-2018 and time 23:09:28 (Italy) in region 2 km W Sellano (PG)

A magnitude ML 2.2 earthquake occured in region: 2 km W Sellano (PG), on

  • 22-08-2018 21:09:28 (UTC)
  • 22-08-2018 23:09:28 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8910, 12.9030 at 9 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
Sellano PG 2 1079 1079
Cerreto di Spoleto PG 8 1075 2154
Preci PG 11 724 2878
Trevi PG 13 8469 11347
Campello sul Clitunno PG 13 2442 13789
Vallo di Nera PG 14 364 14153
Monte Cavallo MC 14 145 14298
Visso MC 16 1107 15405
Foligno PG 18 57155 72560
Sant'Anatolia di Narco PG 18 564 73124
Norcia PG 19 4957 78081
Poggiodomo PG 20 117 78198

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km E of Foligno (57155 inhabitants)
42 Km NE of Terni (111501 inhabitants)
48 Km SE of Perugia (166134 inhabitants)
70 Km W of Teramo (54892 inhabitants)
72 Km NW of L'Aquila (69753 inhabitants)
84 Km NE of Viterbo (67173 inhabitants)
95 Km SW of Ancona (100861 inhabitants)
100 Km N of Guidonia Montecelio (88673 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 2.2 2018-08-22
21:09:28		 42.891 12.9028 9 2019-04-24
14:50:56		 Bollettino Sismico Italiano INGV 61560241
Reviewed
Rev100 		ML 2.2 2018-08-22
21:09:28		 42.8978 12.9032 10 2018-08-22
21:16:35		 Sala Sismica INGV-Roma 60096521
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-08-22 21:09:28 ± 0.06
Latitude 42.8910 ± 0.0018
Longitude 12.9028 ± 0.0037
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 61560241

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 268
Semi-minor axis of confidence ellipse (meter) 151
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 62
Circular confidence region, given by single value of horizontal uncertainty (meter) 270.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 105
Number of associated phases, regardless of their use for origin computation 60
Number of defining phases 55
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.92270
Number of stations at which the event was observed 37
Number of stations from which data was used for origin computation 34
Magnitudes information

ML:2.2

Field Value
Value 2.2
Uncertainty 0.3
Num. used stations 72
Type of magnitude ML
Reference to an origin 61560241
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-10-02 14:31:04

ML:2.2

Field Value
Value 2.2
Uncertainty 0.3
Num. used stations 76
Type of magnitude ML
Reference to an origin 60096521
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-08-22 21:16:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.LMD.HHZ. 2018-08-22T21:09:58.84 3.0 undecidable manual P 3.62 0
IV.FIAM.HHZ. 2018-08-22T21:09:51.50 0.1 undecidable manual S 166 71.2731 50 0.6 80
IV.ARVD.HHZ. 2018-08-22T21:09:50.30 0.1 undecidable manual S 3 67.377 50 0.43 85
IV.TERO.HHZ. 2018-08-22T21:09:49.10 0.1 undecidable manual S 117 64.3911 50 0.05 92
IV.CING.HHZ. 2018-08-22T21:09:48.00 0.1 undecidable manual S 24 58.6968 50 0.45 86
IV.T0110.HHZ. 2018-08-22T21:09:46.35 0.1 undecidable manual P 136 102.4197 50 -0.02 86
IV.VCEL.EHZ. 2018-08-22T21:09:45.50 0.1 positive manual P 125 94.239 50 0.38 81
IV.MTCE.HHZ. 2018-08-22T21:09:45.38 0.1 undecidable manual P 188 97.2249 50 -0.19 84
IV.RM33.EHZ. 2018-08-22T21:09:45.30 0.1 undecidable manual S 149 49.4172 50 0.24 91
IV.EL6.EHZ. 2018-08-22T21:09:45.80 0.1 undecidable manual S 18 51.2154 50 0.26 91
IV.MF5.EHZ. 2018-08-22T21:09:44.30 0.1 undecidable manual S 76 46.5201 50 0.02 96
IV.SMA1.EHZ. 2018-08-22T21:09:44.30 0.3 undecidable manual S 129 45.5211 50 0.27 69
IV.CAFI.HHZ. 2018-08-22T21:09:44.90 0.1 undecidable manual P 303 90.0432 50 0.42 81
IV.FOSV.EHZ. 2018-08-22T21:09:44.40 0.1 undecidable manual S 346 46.2204 50 0.19 93
IV.NARO.HHZ. 2018-08-22T21:09:43.29 0.1 undecidable manual P 342 83.9493 50 -0.25 85
IV.MTRA.EHZ. 2018-08-22T21:09:43.30 0.1 undecidable manual S 110 42.8238 50 -0.01 97
IV.COR1.EHZ. 2018-08-22T21:09:43.02 0.1 undecidable manual P 5 82.5507 50 -0.29 85
IV.SNTG.HHZ. 2018-08-22T21:09:42.40 0.1 undecidable manual S 4 40.5261 50 -0.28 92
IV.PIEI.HHZ. 2018-08-22T21:09:42.50 0.1 undecidable manual P 338 77.4669 50 -0.03 90
IV.ATCC.EHZ. 2018-08-22T21:09:42.40 0.1 undecidable manual S 327 38.9277 50 0.13 95
IV.ATPI.EHZ. 2018-08-22T21:09:42.10 0.1 undecidable manual P 327 74.1702 50 0.08 90
IV.ATVO.HHZ. 2018-08-22T21:09:41.05 0.1 undecidable manual P 324 67.6767 50 0.02 92
IV.ARRO.EHZ. 2018-08-22T21:09:41.60 0.1 undecidable manual S 198 36.3414 50 0.03 98
IV.ATMI.HHZ. 2018-08-22T21:09:41.68 0.1 undecidable manual P 314 71.1732 50 0.12 90
IV.FIAM.HHZ. 2018-08-22T21:09:41.27 0.1 undecidable manual P 166 71.2731 50 -0.31 86
IV.LNSS.HHZ. 2018-08-22T21:09:40.80 0.1 undecidable manual S 161 33.8439 50 -0.11 96
IV.CSP1.EHZ. 2018-08-22T21:09:40.60 0.1 undecidable manual S 48 33.1446 50 -0.11 97
IV.ARVD.HHZ. 2018-08-22T21:09:40.76 0.1 undecidable manual P 3 67.377 50 -0.22 89
IV.MMO1.EHZ. 2018-08-22T21:09:40.80 0.1 undecidable manual S 88 34.4433 50 -0.27 93
IV.TERO.HHZ. 2018-08-22T21:09:40.12 0.1 undecidable manual P 117 64.3911 50 -0.4 86
IV.CAMP.HHZ. 2018-08-22T21:09:39.08 0.1 negative manual P 134 57.0984 50 -0.31 89
IV.ATTE.HHZ. 2018-08-22T21:09:39.45 0.1 undecidable manual P 308 55.9995 50 0.22 91
IV.CING.HHZ. 2018-08-22T21:09:39.54 0.1 positive manual P 24 58.6968 50 -0.11 92
IV.ASSB.HHZ. 2018-08-22T21:09:38.36 3.0 undecidable manual S 0.01 0
IV.MF5.EHZ. 2018-08-22T21:09:38.04 0.1 negative manual P 76 46.5201 50 0.28 91
IV.MURB.HHZ. 2018-08-22T21:09:38.50 0.1 undecidable manual P 324 51.4152 50 -0.01 95
IV.EL6.EHZ. 2018-08-22T21:09:38.35 0.1 positive manual P 18 51.2154 50 -0.14 93
OB.GAVE.EHZ. 2018-08-22T21:09:37.58 3.0 undecidable manual S 0.1 0
IV.SMA1.EHZ. 2018-08-22T21:09:37.45 0.1 undecidable manual P 129 45.5211 50 -0.16 93
IV.RM33.EHZ. 2018-08-22T21:09:37.94 0.1 negative manual P 149 49.4172 50 -0.27 91
IV.MC2.EHZ. 2018-08-22T21:09:37.70 0.1 undecidable manual S 84 23.3544 110 0.22 96
IV.MTRA.EHZ. 2018-08-22T21:09:37.00 0.1 negative manual P 110 42.8238 50 -0.2 93
IV.FOSV.EHZ. 2018-08-22T21:09:37.36 0.1 positive manual P 346 46.2204 50 -0.36 90
IV.ARRO.EHZ. 2018-08-22T21:09:36.27 0.1 positive manual P 198 36.3414 50 0.08 97
IV.NRCA.HNZ. 2018-08-22T21:09:36.00 0.1 undecidable manual S 110 18.3705 115 0.13 99
IV.SNTG.HHZ. 2018-08-22T21:09:36.75 0.1 undecidable manual P 4 40.5261 50 -0.08 96
IV.ATCC.EHZ. 2018-08-22T21:09:36.43 0.1 undecidable manual P 327 38.9277 50 -0.17 94
IV.FDMO.HHZ. 2018-08-22T21:09:36.80 0.1 undecidable manual S 43 22.0668 111 -0.25 96
IV.MMO1.EHZ. 2018-08-22T21:09:35.67 0.1 negative manual P 88 34.4433 50 -0.23 94
IV.CSP1.EHZ. 2018-08-22T21:09:35.47 0.1 positive manual P 48 33.1446 50 -0.23 94
IV.LNSS.HHZ. 2018-08-22T21:09:35.66 0.1 undecidable manual P 161 33.8439 50 -0.16 96
IV.ASSB.HHZ. 2018-08-22T21:09:34.24 3.0 negative manual P -0.11 0
IV.CESI.HHZ. 2018-08-22T21:09:34.00 0.1 undecidable manual S 1 12.6762 124 -0.15 99
IV.FEMA.HNZ. 2018-08-22T21:09:34.80 0.1 undecidable manual S 56 14.2746 121 0.16 99
IV.NRCA.HNZ. 2018-08-22T21:09:33.02 0.1 negative manual P 110 18.3705 115 0.12 99
OB.GAVE.EHZ. 2018-08-22T21:09:33.90 3.0 undecidable manual P 0.05 0
IV.MC2.EHZ. 2018-08-22T21:09:33.92 0.1 negative manual P 84 23.3544 110 0.09 99
IV.FDMO.HHZ. 2018-08-22T21:09:33.55 0.1 positive manual P 43 22.0668 111 -0.04 100
IV.FEMA.HNZ. 2018-08-22T21:09:32.43 0.1 positive manual P 56 14.2746 121 0.24 97
IV.CESI.HHZ. 2018-08-22T21:09:32.02 0.1 positive manual P 1 12.6762 124 0.11 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ASSB.HHN. ML:2.2 0.0008959999999999999 0.34 AML other m 2018-08-22T21:09:40.43
IV.FEMA.HNN. ML:0.0 0.00861 0.16 AML other m 2018-08-22T21:09:34.97
IV.FEMA.HNE. ML:0.0 0.0098698755 0.192 AML other m 2018-08-22T21:09:35.02
IV.CESI.HHE. ML:0.0 0.005615 0.3 AML other m 2018-08-22T21:09:35.67
IV.NRCA.HHE. ML:0.0 0.008379999999999999 0.16 AML other m 2018-08-22T21:09:36.26
IV.NRCA.HNE. ML:0.0 0.007655 0.16 AML other m 2018-08-22T21:09:36.26
IV.NRCA.HNN. ML:0.0 0.0071449999999999994 0.12 AML other m 2018-08-22T21:09:36.47
IV.NRCA.HHN. ML:0.0 0.007755000000000001 0.12 AML other m 2018-08-22T21:09:36.47
IV.FDMO.HHE. ML:0.0 0.004005 0.18 AML other m 2018-08-22T21:09:37.12
IV.FDMO.HHN. ML:0.0 0.0024130655 0.3584 AML other m 2018-08-22T21:09:37.37
IV.LNSS.HHE. ML:0.0 0.001260761 0.2304 AML other m 2018-08-22T21:09:43.30
IV.LNSS.HHN. ML:0.0 0.00096945965 0.1664 AML other m 2018-08-22T21:09:43.14
IV.SNTG.HNN. ML:0.0 0.0006952377999999999 0.192 AML other m 2018-08-22T21:09:43.89
IV.SNTG.HHN. ML:0.0 0.0007817064499999999 0.2048 AML other m 2018-08-22T21:09:43.89
IV.SNTG.HHE. ML:0.0 0.00027306465 0.1408 AML other m 2018-08-22T21:09:43.60
IV.MTRA.HNN. ML:0.0 0.00085014925 0.2304 AML other m 2018-08-22T21:09:44.02
IV.MTRA.EHN. ML:0.0 0.00089188665 0.2432 AML other m 2018-08-22T21:09:44.03
IV.MTRA.HNE. ML:0.0 0.0011482460000000001 0.2944 AML other m 2018-08-22T21:09:43.97
IV.MTRA.EHE. ML:0.0 0.00114189 0.3072 AML other m 2018-08-22T21:09:43.97
IV.SNTG.HNE. ML:0.0 0.0008529184000000001 0.1408 AML other m 2018-08-22T21:09:43.88
IV.ATCC.EHN. ML:0.0 0.0005498811 0.256 AML other m 2018-08-22T21:09:45.56
IV.ATCC.EHE. ML:0.0 0.000484 0.6 AML other m 2018-08-22T21:09:45.40
IV.MF5.EHN. ML:0.0 0.0005703345 0.4864 AML other m 2018-08-22T21:09:49.37
IV.MF5.EHE. ML:0.0 0.000683 0.28 AML other m 2018-08-22T21:09:45.79
IV.RM33.HNN. ML:0.0 0.00033390805 0.2048 AML other m 2018-08-22T21:09:46.53
IV.RM33.EHN. ML:0.0 0.0002791232 0.1792 AML other m 2018-08-22T21:09:46.45
IV.EL6.EHN. ML:0.0 0.00128 0.18 AML other m 2018-08-22T21:09:47.29
IV.EL6.EHE. ML:0.0 0.0011020000000000001 0.24 AML other m 2018-08-22T21:09:47.81
IV.SMA1.EHN. ML:0.0 0.00045650000000000004 0.38 AML other m 2018-08-22T21:09:48.27
IV.CING.HHE. ML:0.0 0.00033775965000000003 0.2048 AML other m 2018-08-22T21:09:48.00
IV.FOSV.EHE. ML:0.0 0.000397 0.64 AML other m 2018-08-22T21:09:48.67
IV.CING.HHN. ML:0.0 0.0005591834 0.192 AML other m 2018-08-22T21:09:49.23
IV.FOSV.EHN. ML:0.0 0.0002649363 0.4352 AML other m 2018-08-22T21:09:48.17
IV.RM33.HNE. ML:0.0 0.00042449999999999996 0.38 AML other m 2018-08-22T21:09:48.80
IV.RM33.EHE. ML:0.0 0.000416 0.36 AML other m 2018-08-22T21:09:48.99
IV.MURB.HHE. ML:0.0 0.0008015 1.68 AML other m 2018-08-22T21:09:50.92
IV.MURB.HNN. ML:0.0 0.00058312885 0.32 AML other m 2018-08-22T21:09:50.31
IV.MURB.HHN. ML:0.0 0.0005623793999999999 0.2432 AML other m 2018-08-22T21:09:48.47
IV.MURB.HNE. ML:0.0 0.00074817755 0.3072 AML other m 2018-08-22T21:09:49.93
IV.SMA1.EHE. ML:0.0 0.00041700185000000003 0.6272 AML other m 2018-08-22T21:09:51.28
IV.ARVD.HHE. ML:0.0 0.00018731883 0.256 AML other m 2018-08-22T21:09:53.34
IV.TERO.HHN. ML:0.0 0.0001410612 0.2048 AML other m 2018-08-22T21:09:54.02
IV.ARVD.HHN. ML:0.0 0.0001224737 0.2304 AML other m 2018-08-22T21:09:51.51
IV.TERO.HHE. ML:0.0 0.00015218779999999997 0.3584 AML other m 2018-08-22T21:09:51.65
IV.ATTE.HHN. ML:0.0 0.0001015 0.64 AML other m 2018-08-22T21:09:55.26
IV.ATMI.HHE. ML:0.0 0.0002405 0.42 AML other m 2018-08-22T21:09:56.31
IV.CAMP.HHE. ML:0.0 0.0001085 0.64 AML other m 2018-08-22T21:09:56.45
IV.ATVO.HHE. ML:0.0 0.00010495 0.66 AML other m 2018-08-22T21:09:56.55
IV.ATTE.HHE. ML:0.0 0.00010449999999999999 0.62 AML other m 2018-08-22T21:09:56.74
IV.ATPI.EHE. ML:0.0 0.00007317297000000001 0.4352 AML other m 2018-08-22T21:10:06.53
IV.T0110.HHE. ML:0.0 0.0001171 0.26 AML other m 2018-08-22T21:09:58.42
IV.FIAM.HHN. ML:0.0 0.000188 0.38 AML other m 2018-08-22T21:09:58.66
IV.ATVO.HHN. ML:0.0 0.0001305 1.1 AML other m 2018-08-22T21:09:58.74
IV.PIEI.HHE. ML:0.0 0.000112 0.22 AML other m 2018-08-22T21:09:58.75
IV.COR1.EHN. ML:2.4 0.000311 1.26 AML other m 2018-08-22T21:09:59.14
IV.NARO.HHE. ML:1.8 0.00008805 0.84 AML other m 2018-08-22T21:10:00.67
IV.FIAM.HHE. ML:0.0 0.00019600000000000002 0.9 AML other m 2018-08-22T21:10:00.91
IV.CAMP.HHN. ML:0.0 0.0001008 0.76 AML other m 2018-08-22T21:10:00.46
IV.CAFI.HHE. ML:0.0 0.0000976 0.5 AML other m 2018-08-22T21:10:00.80
IV.COR1.EHE. ML:2.2 0.00021699999999999996 0.76 AML other m 2018-08-22T21:10:01.52
IV.ATMI.HHN. ML:0.0 0.0002540734 0.3584 AML other m 2018-08-22T21:10:01.87
IV.MTCE.HHE. ML:0.0 0.000117 0.68 AML other m 2018-08-22T21:10:03.27
IV.CAFI.HHN. ML:0.0 0.00007209999999999999 0.54 AML other m 2018-08-22T21:10:04.03
IV.PIEI.HHN. ML:0.0 0.000071119585 0.448 AML other m 2018-08-22T21:10:04.17
IV.MTCE.HHN. ML:0.0 0.00009715 0.52 AML other m 2018-08-22T21:10:05.57
IV.ATPI.EHN. ML:0.0 0.0000909 0.86 AML other m 2018-08-22T21:10:06.50
IV.NARO.HHN. ML:1.7 0.0000582 1.14 AML other m 2018-08-22T21:10:09.66
IV.VCEL.EHN. ML:2.1 0.000125 1.68 AML other m 2018-08-22T21:10:13.04
IV.T0110.HHN. ML:0.0 0.00011478284999999999 0.4224 AML other m 2018-08-22T21:10:15.17
IV.VCEL.EHE. ML:2.1 0.0001275 1.38 AML other m 2018-08-22T21:10:18.15
IV.CESI.HHN. ML:3.0 0.0115 0.2 AML other m 2018-08-22T21:09:34.33
OB.GAVE.HNE. ML:0.0 0.0049729805 0.1792 AML other m 2018-08-22T21:09:39.10
IV.ASSB.HHE. ML:2.1 0.00075371035 0.2432 AML other m 2018-08-22T21:09:40.03
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
Waveforms Seismic signals in miniseed + resp format Download