Earthquake with magnitude of ML 1.3 on date 02-12-2021 and time 15:18:28 (UTC) in region 4 km E Preci (PG)

A magnitude ML 1.3 earthquake occured in region: 4 km E Preci (PG), on

  • 02-12-2021 15:18:28 (UTC)
  • 02-12-2021 16:18:28 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.886, 13.092 at 12 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 4 724 724
Visso MC 5 1107 1831
Castelsantangelo sul Nera MC 5 281 2112
Ussita MC 8 444 2556
Norcia PG 10 4957 7513
Sellano PG 13 1079 8592
Monte Cavallo MC 14 145 8737
Cerreto di Spoleto PG 16 1075 9812
Bolognola MC 16 142 9954
Fiordimonte MC 17 202 10156
Acquacanina MC 18 121 10277
Fiastra MC 18 559 10836
Pieve Torina MC 18 1458 12294
Montemonaco AP 19 604 12898
Cascia PG 20 3217 16115
Pievebovigliana MC 20 866 16981

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km E of Foligno (57155 inhabitants)
51 Km NE of Terni (111501 inhabitants)
56 Km W of Teramo (54892 inhabitants)
62 Km E of Perugia (166134 inhabitants)
65 Km NW of L'Aquila (69753 inhabitants)
88 Km SW of Ancona (100861 inhabitants)
96 Km W of Montesilvano (53738 inhabitants)
96 Km NE of Viterbo (67173 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 1.3 2021-12-02
15:18:28
42.8862 13.0917 12 2021-12-02
15:25:27
Sala Sismica INGV-Roma 98058951
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-02 15:18:28 ± 0.08
Latitude 42.8862 ± 0.0036
Longitude 13.0917 ± 0.0049
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 98058951

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 477
Semi-minor axis of confidence ellipse (meter) 131
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 224
Circular confidence region, given by single value of horizontal uncertainty (meter) 480
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 134
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0.05486
Epicentral distance of station farthest from the epicenter (degree) 0.35343
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 98058951
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-12-02 15:25:27
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CSP1.EHZ. 2021-12-02T15:18:37.56 0.6 undecidable manual S 22 0.2212 95 -0.03 50
IV.CESI.HHZ. 2021-12-02T15:18:36.47 0.6 undecidable manual S 311 0.1808 98 0.07 50
IV.MMO1.EHZ. 2021-12-02T15:18:35.83 0.6 undecidable manual S 86 0.1727 99 -0.32 47
IV.ASSB.HHE. 2021-12-02T15:18:35.99 0.3 undecidable manual P 296 0.3534 92 -0.03 73
IV.MF5.EHE. 2021-12-02T15:18:35.25 0.3 undecidable manual P 69 0.2878 93 0.35 70
IV.FDMO.HHZ. 2021-12-02T15:18:35.28 0.3 undecidable manual S 359 0.1502 103 -0.22 73
IT.MTCL.HGZ. 2021-12-02T15:18:34.61 0.6 undecidable manual S 328 0.1268 111 -0.23 49
IV.MC2.EHZ. 2021-12-02T15:18:33.65 0.6 undecidable manual S 70 0.0755 134 0.09 51
IV.CESI.HHZ. 2021-12-02T15:18:33.15 0.3 undecidable manual P 311 0.1808 98 0.07 75
IV.FEMA.HNZ. 2021-12-02T15:18:33.69 0.6 undecidable manual S 338 0.0818 131 0 52
IV.CSP1.EHZ. 2021-12-02T15:18:33.84 0.3 undecidable manual P 22 0.2212 95 0.07 74
IV.FDMO.HHZ. 2021-12-02T15:18:32.62 0.3 undecidable manual P 359 0.1502 103 0.06 76
IV.NRCA.HNZ. 2021-12-02T15:18:32.80 0.6 undecidable manual S 162 0.0549 145 -0.36 48
IV.MMO1.EHZ. 2021-12-02T15:18:32.81 0.3 undecidable manual P 86 0.1727 99 -0.13 73
IT.MTCL.HGZ. 2021-12-02T15:18:32.16 0.3 undecidable manual P 328 0.1268 111 -0.02 76
IV.FEMA.HNZ. 2021-12-02T15:18:31.67 0.1 undecidable manual P 338 0.0818 131 0.15 100
IV.NRCA.HNZ. 2021-12-02T15:18:31.22 0.3 undecidable manual P 162 0.0549 145 0 77
IV.MC2.EHZ. 2021-12-02T15:18:31.60 0.3 undecidable manual P 70 0.0755 134 0.16 75
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HNE. ML:2 0.001208719 0.1408 AML other m 2021-12-02T15:18:32.00
IV.NRCA.HHE. ML:2 0.00125841265 0.1408 AML other m 2021-12-02T15:18:32.99
IV.NRCA.HNN. ML:1.8 0.000778 1.86 AML other m 2021-12-02T15:18:32.97
IV.NRCA.HHN. ML:1.8 0.0008776767 0.1408 AML other m 2021-12-02T15:18:32.97
IV.MC2.EHN. ML:1.5 0.000350601 0.192 AML other m 2021-12-02T15:18:34.07
IV.MC2.EHE. ML:1.3 0.00026405138 0.128 AML other m 2021-12-02T15:18:34.25
IV.FDMO.HHE. ML:1.1 9.463665E-5 0.1152 AML other m 2021-12-02T15:18:35.49
IV.FDMO.HHN. ML:0.9 6.465E-5 0.44 AML other m 2021-12-02T15:18:36.45
IV.CESI.HHN. ML:1.4 0.0001740484 0.0768 AML other m 2021-12-02T15:18:36.52
IV.CESI.HHE. ML:1.4 0.0001565 0.08 AML other m 2021-12-02T15:18:36.51
IV.MMO1.EHE. ML:1 8.096942E-5 0.2304 AML other m 2021-12-02T15:18:37.08
IV.MMO1.EHN. ML:1 7.745883E-5 0.1024 AML other m 2021-12-02T15:18:36.46
IV.CESI.HNE. ML:1.3 0.00015027444 0.0896 AML other m 2021-12-02T15:18:36.56
IV.CESI.HNN. ML:1.3 0.00014605285 0.1024 AML other m 2021-12-02T15:18:36.77
IV.CSP1.EHE. ML:1.2 8.309584E-5 0.3712 AML other m 2021-12-02T15:18:39.10
IV.CSP1.EHN. ML:1 6.31641645E-5 0.2688 AML other m 2021-12-02T15:18:41.98
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