Earthquake with magnitude of ML 0.8 on date 22-09-2018 and time 04:21:10 (Italy) in region 3 km NE Cerreto di Spoleto (PG)

A magnitude ML 0.8 earthquake occured in region: 3 km NE Cerreto di Spoleto (PG), on

  • 22-09-2018 02:21:10 (UTC)
  • 22-09-2018 04:21:10 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.83, 12.95 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Cerreto di Spoleto PG 3 1075 1075
Sellano PG 6 1079 2154
Preci PG 9 724 2878
Vallo di Nera PG 10 364 3242
Norcia PG 13 4957 8199
Poggiodomo PG 14 117 8316
Campello sul Clitunno PG 14 2442 10758
Cascia PG 14 3217 13975
Sant'Anatolia di Narco PG 14 564 14539
Visso MC 16 1107 15646
Scheggino PG 16 461 16107
Trevi PG 17 8469 24576
Castelsantangelo sul Nera MC 18 281 24857
Monte Cavallo MC 18 145 25002
Ussita MC 20 444 25446

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km SE of Foligno (57155 inhabitants)
39 Km NE of Terni (111501 inhabitants)
55 Km SE of Perugia (166134 inhabitants)
65 Km W of Teramo (54892 inhabitants)
65 Km NW of L'Aquila (69753 inhabitants)
83 Km NE of Viterbo (67173 inhabitants)
94 Km N of Guidonia Montecelio (88673 inhabitants)
98 Km N of Tivoli (56533 inhabitants)
99 Km SW of Ancona (100861 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
Rev 1000 ML 0.8 2018-09-22
02:21:10
42.83 12.95 9 2019-06-04
09:16:15
Bollettino Sismico Italiano INGV 68221231
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-09-22 02:21:10 ± 0.11
Latitude 42.83 ± 0.01
Longitude 12.95 ± 0.01
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 68221231

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 604
Semi-minor axis of confidence ellipse (meter) 487
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 42
Circular confidence region, given by single value of horizontal uncertainty (meter) 600
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 59
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.12231
Epicentral distance of station farthest from the epicenter (degree) 0.50722
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.2
Num. used stations 17
Type of magnitude ML
Reference to an origin 68221231
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-05-03 15:46:08
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.EL6.EHZ. 2018-09-22T02:21:29.40 0.3 undecidable manual S 13 0.5072 50 0.7 59
IV.RM33.EHZ. 2018-09-22T02:21:24.70 0.3 undecidable manual S 149 0.3795 50 -0.22 70
IV.SMA1.EHZ. 2018-09-22T02:21:24.50 0.1 undecidable manual S 125 0.3498 50 0.47 89
IV.ARRO.EHZ. 2018-09-22T02:21:22.00 0.3 undecidable manual S 208 0.2878 50 -0.2 72
IV.ASSB.HHZ. 2018-09-22T02:21:22.50 0.3 undecidable manual S 315 0.2968 50 0.04 74
IV.MMO1.EHZ. 2018-09-22T02:21:21.60 0.3 undecidable manual S 77 0.2851 50 -0.52 67
IV.EL6.EHZ. 2018-09-22T02:21:21.05 0.1 undecidable manual P 13 0.5072 50 -0.1 93
IV.FDMO.HHN. 2018-09-22T02:21:19.90 0.3 undecidable manual S 27 0.2266 111 -0.25 72
IV.CESI.HHZ. 2018-09-22T02:21:18.30 0.3 undecidable manual S 350 0.1736 116 0.02 76
IV.RM33.EHZ. 2018-09-22T02:21:18.71 0.3 undecidable manual P 149 0.3795 50 -0.26 70
IV.SMA1.EHZ. 2018-09-22T02:21:18.95 0.1 undecidable manual P 125 0.3498 50 0.49 89
IV.MC2.EHZ. 2018-09-22T02:21:18.67 0.3 undecidable manual S 66 0.1925 114 -0.28 72
IV.MMO1.EHZ. 2018-09-22T02:21:17.06 0.1 undecidable manual P 77 0.2851 50 -0.29 94
IV.MOMA.HHZ. 2018-09-22T02:21:17.68 0.3 undecidable manual P 264 0.2788 50 0.44 68
IV.ARRO.EHZ. 2018-09-22T02:21:17.16 0.1 undecidable manual P 208 0.2878 50 -0.24 95
IV.ASSB.HHZ. 2018-09-22T02:21:17.26 0.1 undecidable manual P 315 0.2968 50 -0.29 94
IV.NRCA.HHZ. 2018-09-22T02:21:16.70 0.1 undecidable manual S 90 0.1223 125 0.13 100
IV.FDMO.HHN. 2018-09-22T02:21:16.05 0.1 undecidable manual P 27 0.2266 111 -0.17 97
IV.CESI.HHZ. 2018-09-22T02:21:15.29 0.1 undecidable manual P 350 0.1736 116 0.16 99
IV.MC2.EHZ. 2018-09-22T02:21:15.95 0.3 undecidable manual P 66 0.1925 114 0.43 70
IV.NRCA.HHZ. 2018-09-22T02:21:14.32 1.0 undecidable manual P 90 0.1223 125 0.17 25
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HNE. ML:1.1 0.00014410604 0.1696 AML other m 2018-09-22T02:21:16.82
IV.NRCA.HNN. ML:1.1 0.00012905355 0.2192 AML other m 2018-09-22T02:21:17.45
IV.NRCA.HHN. ML:1 9.427261E-5 0.1216 AML other m 2018-09-22T02:21:18.23
IV.NRCA.HHE. ML:1.2 0.00016687765 0.16 AML other m 2018-09-22T02:21:16.82
OB.GAVE.EHE. ML:0 0.0001787164 0.1808 AML other m 2018-09-22T02:21:17.89
OB.GAVE.EHN. ML:0 0.0001601575 0.2208 AML other m 2018-09-22T02:21:18.05
OB.GAVE.HNE. ML:0 0.00016701705 0.1696 AML other m 2018-09-22T02:21:18.07
OB.GAVE.HNN. ML:0 0.0001411055 0.6704 AML other m 2018-09-22T02:21:17.20
IV.CESI.HHE. ML:0.7 3.9140515E-5 0.0992 AML other m 2018-09-22T02:21:18.87
IV.CESI.HHN. ML:0.9 5.96522615E-5 0.1792 AML other m 2018-09-22T02:21:18.68
IV.ARRO.EHE. ML:0.6 2.084616E-5 0.1808 AML other m 2018-09-22T02:21:22.62
IV.ARRO.EHN. ML:0.7 2.297191E-5 0.16 AML other m 2018-09-22T02:21:22.74
IV.ASSB.HHE. ML:0.8 2.37319865E-5 0.12 AML other m 2018-09-22T02:21:23.74
IV.ASSB.HHN. ML:0.7 2.935E-5 0.46 AML other m 2018-09-22T02:21:23.44
IV.MOMA.HHN. ML:0.5 1.5201369E-5 0.2 AML other m 2018-09-22T02:21:24.65
IV.MOMA.HHE. ML:0.5 1.287145E-5 0.2 AML other m 2018-09-22T02:21:23.11
IV.RM33.HNN. ML:1.5 0.00010283128 0.4912 AML other m 2018-09-22T02:21:35.98
IV.RM33.EHN. ML:0.5 1.13872695E-5 0.16 AML other m 2018-09-22T02:21:25.33
IV.RM33.EHE. ML:0.7 1.671169E-5 0.16 AML other m 2018-09-22T02:21:26.73
IV.SMA1.EHN. ML:0.8 2.058059E-5 0.68 AML other m 2018-09-22T02:21:28.52
IV.SMA1.EHE. ML:0.8 2.4672355E-5 0.36 AML other m 2018-09-22T02:21:27.46
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download