Earthquake with magnitude of ML 1.3 on date 27-09-2022 and time 22:56:33 (Italy) in region 7 km E San Gemini (TR)

A magnitude ML 1.3 earthquake occured in region: 7 km E San Gemini (TR), on

  • 27-09-2022 20:56:33 (UTC)
  • 27-09-2022 22:56:33 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6310, 12.6360 at 11 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
San Gemini TR 8 5018 5018
Terni TR 8 111501 116519
Acquasparta TR 10 4778 121297
Montefranco TR 11 1276 122573
Arrone TR 12 2763 125336
Montecastrilli TR 12 5022 130358
Ferentillo TR 13 1913 132271
Spoleto PG 14 38218 170489
Stroncone TR 15 4917 175406
Narni TR 16 19785 195191
Avigliano Umbro TR 17 2558 197749
Polino TR 18 233 197982
Labro RI 18 374 198356
Scheggino PG 19 461 198817
Massa Martana PG 19 3770 202587
Colli sul Velino RI 19 533 203120
Morro Reatino RI 20 373 203493
Amelia TR 20 11897 215390

Municipalities with at least 50000 inhabitants

An earthquake occurred to
8 Km N of Terni (111501 inhabitants)
37 Km S of Foligno (57155 inhabitants)
49 Km E of Viterbo (67173 inhabitants)
57 Km SE of Perugia (166134 inhabitants)
70 Km W of L'Aquila (69753 inhabitants)
70 Km N of Guidonia Montecelio (88673 inhabitants)
75 Km N of Tivoli (56533 inhabitants)
83 Km N of Roma (2864731 inhabitants)
88 Km W of Teramo (54892 inhabitants)
91 Km NE of Civitavecchia (52991 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
Reviewed
Rev100
ML 1.3 2022-09-27
20:56:33
42.6307 12.6358 11 2022-09-27
21:01:14
Sala Sismica INGV-Roma 110230011
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-09-27 20:56:33 ± 0.07
Latitude 42.6307 ± 0.0054
Longitude 12.6358 ± 0.0061
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 110230011

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 630
Semi-minor axis of confidence ellipse (meter) 342
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 215
Circular confidence region, given by single value of horizontal uncertainty (meter) 630.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 121
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 23
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.62143
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 15
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.1
Num. used stations 8
Type of magnitude ML
Reference to an origin 110230011
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-09-27 21:01:14
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MGAB.HHE. 2022-09-27T20:56:50.64 0.6 undecidable manual S 306 0.4766 50 0.08 46
IV.CESI.HHZ. 2022-09-27T20:56:49.38 0.3 undecidable manual S 28 0.4227 50 0.41 66
IV.NRCA.HHZ. 2022-09-27T20:56:48.47 0.3 undecidable manual S 60 0.4056 50 0.01 72
IV.CSP1.EHZ. 2022-09-27T20:56:46.07 1.0 undecidable manual P 42 0.6214 50 0.09 23
IV.LNSS.HHZ. 2022-09-27T20:56:45.04 0.3 undecidable manual S 95 0.2986 50 -0.26 70
IV.MML1.EHZ. 2022-09-27T20:56:44.27 0.3 undecidable manual P 27 0.5414 50 -0.35 65
IV.FDMO.HHZ. 2022-09-27T20:56:44.09 1.0 positive manual P 39 0.5234 50 -0.22 22
IV.SMA1.EHZ. 2022-09-27T20:56:44.74 0.3 undecidable manual P 90 0.5144 50 0.59 61
IV.FIAM.HHZ. 2022-09-27T20:56:43.62 3.0 positive manual P 0.05 0
IV.MGAB.HHE. 2022-09-27T20:56:43.66 0.1 undecidable manual P 306 0.4766 50 0.15 92
IV.MC2.EHZ. 2022-09-27T20:56:43.92 0.3 undecidable manual P 55 0.4937 50 0.13 69
IV.NRCA.HHZ. 2022-09-27T20:56:42.03 0.3 negative manual P 60 0.4056 50 -0.26 68
IV.GAVE.EHZ. 2022-09-27T20:56:42.39 0.3 undecidable manual S 72 0.1996 50 0.03 74
IV.RM33.EHZ. 2022-09-27T20:56:42.84 1.0 undecidable manual P 106 0.4425 50 -0.09 23
IV.ASSB.HHZ. 2022-09-27T20:56:42.13 0.6 negative manual P 2 0.4119 50 -0.27 45
IV.CESI.HHZ. 2022-09-27T20:56:42.42 0.6 undecidable manual P 28 0.4227 50 -0.17 46
IT.GNU.HGN. 2022-09-27T20:56:41.66 0.3 undecidable manual S 344 0.1799 118 -0.04 75
IV.LNSS.HHZ. 2022-09-27T20:56:40.22 0.3 undecidable manual P 95 0.2986 50 -0.25 70
IV.ARRO.EHZ. 2022-09-27T20:56:39.53 0.3 undecidable manual S 118 0.1088 131 0.11 74
IV.GAVE.EHZ. 2022-09-27T20:56:38.84 0.6 undecidable manual P 72 0.1996 50 0.08 49
IT.GNU.HGN. 2022-09-27T20:56:38.37 0.1 undecidable manual P 344 0.1799 118 -0.02 100
IV.ARRO.EHZ. 2022-09-27T20:56:37.15 0.1 undecidable manual P 118 0.1088 131 0.08 100
IV.CESX.HHZ. 2022-09-27T20:56:37.87 0.3 undecidable manual S 239 0.0423 156 -0.01 77
IV.CESX.HHZ. 2022-09-27T20:56:36.10 0.3 undecidable manual P 239 0.0423 156 -0.08 76
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESX.HHN. ML:1.2 0.000265 0.78 AML other m 2022-09-27T20:56:38.46
IV.CESX.HHE. ML:1.2 0.00022399999999999997 1.08 AML other m 2022-09-27T20:56:38.14
IV.ARRO.EHN. ML:1.5 0.000325 0.18 AML other m 2022-09-27T20:56:39.84
IV.ARRO.EHE. ML:1.4 0.000258 0.16 AML other m 2022-09-27T20:56:40.35
IV.GAVE.EHE. ML:1.2 0.00010045 1.34 AML other m 2022-09-27T20:56:44.02
IV.GAVE.EHN. ML:1.2 0.00009405 0.84 AML other m 2022-09-27T20:56:44.22
IV.LNSS.HHE. ML:1.4 0.00010899999999999999 0.8 AML other m 2022-09-27T20:56:46.93
IV.LNSS.HHN. ML:1.3 0.00009125 1.46 AML other m 2022-09-27T20:56:46.17
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