Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.0 on date 27-09-2022 and time 22:02:38 (Italy) in region 4 km SW Castelsantangelo sul Nera (MC)

A magnitude ML 1.0 earthquake occured in region: 4 km SW Castelsantangelo sul Nera (MC), on

  • 27-09-2022 20:02:38 (UTC)
  • 27-09-2022 22:02:38 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8640, 13.1380 at 8 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
Castelsantangelo sul Nera MC 4 281 281
Preci PG 8 724 1005
Visso MC 9 1107 2112
Norcia PG 9 4957 7069
Ussita MC 9 444 7513
Montemonaco AP 16 604 8117
Montegallo AP 16 523 8640
Bolognola MC 16 142 8782
Arquata del Tronto AP 17 1178 9960
Sellano PG 17 1079 11039
Monte Cavallo MC 18 145 11184
Cerreto di Spoleto PG 19 1075 12259
Acquacanina MC 19 121 12380
Montefortino FM 19 1178 13558
Cascia PG 19 3217 16775
Fiastra MC 19 559 17334
Fiordimonte MC 20 202 17536

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km E of Foligno (57155 inhabitants)
52 Km W of Teramo (54892 inhabitants)
52 Km NE of Terni (111501 inhabitants)
61 Km NW of L'Aquila (69753 inhabitants)
67 Km E of Perugia (166134 inhabitants)
89 Km SW of Ancona (100861 inhabitants)
91 Km W of Montesilvano (53738 inhabitants)
98 Km NE of Viterbo (67173 inhabitants)
99 Km W of Pescara (121014 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 1.0 2022-09-27
20:02:38		 42.8637 13.1377 8 2024-03-01
15:27:57		 Bollettino Sismico Italiano INGV 111036391
Reviewed
Rev100 		ML 0.7 2022-09-27
20:02:38		 42.8668 13.1338 8 2022-09-27
20:07:35		 Sala Sismica INGV-Roma 110228711
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-09-27 20:02:38 ± 0.25
Latitude 42.8637 ± 0.0090
Longitude 13.1377 ± 0.0074
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 111036391

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 814
Semi-minor axis of confidence ellipse (meter) 672
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 169
Circular confidence region, given by single value of horizontal uncertainty (meter) 810.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 127
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.22123
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 6
Magnitudes information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.4
Num. used stations 8
Type of magnitude ML
Reference to an origin 111036391
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-10-21 14:25:36

ML:0.7

Field Value
Value 0.7
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 110228711
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-09-27 20:07:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.VCEL.EHZ. 2022-09-27T20:02:51.02 3.0 undecidable manual P -0.01 0
IV.MMO1.EHZ. 2022-09-27T20:02:44.62 0.1 undecidable manual S 75 15.873 118 0.17 97
IV.CESI.HHZ. 2022-09-27T20:02:43.46 0.3 undecidable manual P 310 24.5532 109 0.05 73
IV.MMO1.EHZ. 2022-09-27T20:02:42.05 0.1 undecidable manual P 75 15.873 118 0.23 96
IV.MC2.EHZ. 2022-09-27T20:02:42.08 0.1 undecidable manual S 38 6.7932 141 0.12 99
IV.FDMO.HHZ. 2022-09-27T20:02:42.24 0.1 undecidable manual P 348 19.5693 113 -0.24 95
7F.SIB3.EHZ. 2022-09-27T20:02:42.73 0.1 undecidable manual S 83 10.878 128 -0.25 96
IV.NRCA.HHZ. 2022-09-27T20:02:41.29 0.1 undecidable manual S 210 3.7962 155 -0.13 100
7F.SIB3.EHZ. 2022-09-27T20:02:40.62 0.1 undecidable manual P 83 10.878 128 -0.34 94
IV.NRCA.HHZ. 2022-09-27T20:02:40.33 0.1 undecidable manual P 210 3.7962 155 0.27 97
IV.MC2.EHZ. 2022-09-27T20:02:40.46 0.1 undecidable manual P 38 6.7932 141 0.09 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MC2.EHE. ML:0.5 0.000057711995 0.2688 AML other m 2022-09-27T20:02:43.44
IV.CESI.HNN. ML:1.2 0.0001015572985 0.6272 AML other m 2022-09-27T20:02:43.67
IV.MC2.EHN. ML:0.5 0.00005823406 0.1792 AML other m 2022-09-27T20:02:43.63
IV.FDMO.HHN. ML:0.6 0.000031051415 0.2336 AML other m 2022-09-27T20:02:43.85
IV.CESI.HNE. ML:1.2 0.00010290172 0.5504 AML other m 2022-09-27T20:02:45.70
IV.VCEL.EHN. ML:1.6 0.00006662960250000001 0.4992 AML other m 2022-09-27T20:02:50.71
IV.CESI.HHN. ML:1.0 0.000058580415 0.0544 AML other m 2022-09-27T20:02:51.21
IV.VCEL.EHE. ML:1.4 0.000037060355000000005 0.064 AML other m 2022-09-27T20:02:52.99
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