Earthquake with magnitude of ML 1.4 on date 27-11-2021 and time 15:25:08 (UTC) in region 2 km W Preci (PG)

A magnitude ML 1.4 earthquake occured in region: 2 km W Preci (PG), on

  • 27-11-2021 15:25:08 (UTC)
  • 27-11-2021 16:25:08 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.887, 13.012 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
Preci PG 2 724 724
Sellano PG 7 1079 1803
Visso MC 8 1107 2910
Cerreto di Spoleto PG 11 1075 3985
Castelsantangelo sul Nera MC 12 281 4266
Monte Cavallo MC 12 145 4411
Ussita MC 12 444 4855
Norcia PG 12 4957 9812
Vallo di Nera PG 18 364 10176
Fiordimonte MC 18 202 10378
Pieve Torina MC 18 1458 11836
Cascia PG 19 3217 15053

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km E of Foligno (57155 inhabitants)
47 Km NE of Terni (111501 inhabitants)
56 Km E of Perugia (166134 inhabitants)
62 Km W of Teramo (54892 inhabitants)
67 Km NW of L'Aquila (69753 inhabitants)
91 Km NE of Viterbo (67173 inhabitants)
91 Km SW of Ancona (100861 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web questionnaire

This map shows the distribution of earthquake resentment in the area, expressed in terms of intensity on the MCS scale (Mercalli-Cancani-Sieberg). Intensities are determined using data from questionnaires collected on the website http://www.hsit.it. The intensities shown are determined considering all the reports received from each municipality, and are all the more reliable the greater the number of questionnaires. The collected data are subjected to an automatic statistical filter, but are not checked individually. In particular, intensities greater than or equal to the VI degree of the MCS or EMS scale require on-site verification by specialized personnel. The black star is the epicenter of the earthquake that occurred. This map is updated every time citizens fill out new questionnaires. The number of questionnaires processed to obtain this map, the date and time of the last update are shown at the top right.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.4 2021-11-27
15:25:08
42.887 13.0122 11 2021-11-27
15:45:24
Sala Sismica INGV-Roma 97873631
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-11-27 15:25:08 ± 0.04
Latitude 42.8870 ± 0.0018
Longitude 13.0122 ± 0.0037
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 97873631

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 297
Semi-minor axis of confidence ellipse (meter) 233
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) 300
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 97
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 25
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) 0.08004
Epicentral distance of station farthest from the epicenter (degree) 0.34264
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 97873631
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-11-27 15:45:24
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ASSB.HHZ. 2021-11-27T15:25:20.16 0.3 undecidable manual S 301 0.3013 50 0.1 71
IV.LNSS.HHE. 2021-11-27T15:25:19.41 0.3 undecidable manual S 176 0.2851 50 -0.15 70
IV.CSP1.EHZ. 2021-11-27T15:25:18.47 0.3 undecidable manual S 34 0.2482 50 -0.02 72
IV.MMO1.EHZ. 2021-11-27T15:25:17.76 0.3 undecidable manual S 87 0.2311 50 -0.2 70
IV.MML1.EHZ. 2021-11-27T15:25:17.81 0.3 undecidable manual S 353 0.2284 50 -0.08 71
IV.GAVE.EHZ. 2021-11-27T15:25:17.41 0.3 undecidable manual S 204 0.2131 50 -0.03 73
IV.MF5.EHZ. 2021-11-27T15:25:16.35 0.1 undecidable manual P 73 0.3426 50 0.41 89
IV.MC2.EHZ. 2021-11-27T15:25:15.20 0.3 undecidable manual S 79 0.1322 127 0.21 72
IV.ASSB.HHZ. 2021-11-27T15:25:15.18 0.1 undecidable manual P 301 0.3013 50 -0.06 95
IV.CESI.HHZ. 2021-11-27T15:25:15.23 0.3 undecidable manual S 326 0.1412 125 -0.07 74
IV.FDMO.HHZ. 2021-11-27T15:25:15.57 0.3 undecidable manual S 20 0.1592 50 -0.27 70
IV.LNSS.HHE. 2021-11-27T15:25:14.88 0.1 undecidable manual P 176 0.2851 50 -0.07 95
IV.CSP1.EHZ. 2021-11-27T15:25:14.30 0.1 undecidable manual P 34 0.2482 50 -0.03 96
IV.GAVE.EHZ. 2021-11-27T15:25:13.79 0.1 undecidable manual P 204 0.2131 50 0.07 97
IV.MMO1.EHZ. 2021-11-27T15:25:13.93 0.1 undecidable manual P 87 0.2311 50 -0.09 95
IV.MML1.EHZ. 2021-11-27T15:25:13.97 0.1 undecidable manual P 353 0.2284 50 -0.01 97
IV.FEMA.HNZ. 2021-11-27T15:25:13.55 0.3 undecidable manual S 20 0.08 141 0.01 76
IV.NRCA.HHZ. 2021-11-27T15:25:13.59 0.3 undecidable manual S 125 0.0917 137 -0.26 72
IT.MTCL.HGZ. 2021-11-27T15:25:13.99 0.3 undecidable manual S 355 0.107 133 -0.27 71
IV.MC2.EHZ. 2021-11-27T15:25:12.40 0.1 undecidable manual P 79 0.1322 127 0.09 98
IV.CESI.HHZ. 2021-11-27T15:25:12.60 0.1 undecidable manual P 326 0.1412 125 0.12 97
IV.FDMO.HHZ. 2021-11-27T15:25:12.78 0.1 undecidable manual P 20 0.1592 50 -0.02 98
IV.FEMA.HNZ. 2021-11-27T15:25:11.84 0.3 undecidable manual P 20 0.08 141 0.37 70
IV.NRCA.HHZ. 2021-11-27T15:25:11.67 0.1 undecidable manual P 125 0.0917 137 0.02 100
IT.MTCL.HGZ. 2021-11-27T15:25:11.95 0.1 undecidable manual P 355 0.107 133 0.06 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.2 0.0002115 0.1 AML other m 2021-11-27T15:25:14.37
IV.NRCA.HHN. ML:1.2 0.0001905 0.5 AML other m 2021-11-27T15:25:15.25
IV.CESI.HHN. ML:1.4 0.0002055 0.3 AML other m 2021-11-27T15:25:15.51
IV.CESI.HHE. ML:1.2 0.0001325 0.1 AML other m 2021-11-27T15:25:15.57
IV.FDMO.HHN. ML:1.6 0.000294 0.28 AML other m 2021-11-27T15:25:15.93
IV.FDMO.HHE. ML:1.6 0.000311 1.66 AML other m 2021-11-27T15:25:15.06
IV.MC2.EHN. ML:1.5 0.0003055 0.46 AML other m 2021-11-27T15:25:15.76
IV.MC2.EHE. ML:1.5 0.0003055 0.98 AML other m 2021-11-27T15:25:17.12
IV.GAVE.EHE. ML:1.6 0.000239 0.14 AML other m 2021-11-27T15:25:17.64
IV.GAVE.EHN. ML:1.3 0.000122 1.04 AML other m 2021-11-27T15:25:18.54
IV.MMO1.EHE. ML:1.3 0.000119 1.08 AML other m 2021-11-27T15:25:18.62
IV.MML1.EHN. ML:1.2 0.0001016 0.18 AML other m 2021-11-27T15:25:18.19
IV.MML1.EHE. ML:1.3 0.0001043 0.2 AML other m 2021-11-27T15:25:18.31
IV.MMO1.EHN. ML:1.4 0.000156 1.26 AML other m 2021-11-27T15:25:18.19
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