Earthquake with magnitude of ML 1.0 on date 24-11-2021 and time 23:50:13 (UTC) in region 2 km SE Norcia (PG)

A magnitude ML 1.0 earthquake occured in region: 2 km SE Norcia (PG), on

  • 24-11-2021 23:50:13 (UTC)
  • 25-11-2021 00:50:13 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.777, 13.106 at 10 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
Norcia PG 2 4957 4957
Cascia PG 10 3217 8174
Preci PG 13 724 8898
Castelsantangelo sul Nera MC 14 281 9179
Accumoli RI 15 667 9846
Arquata del Tronto AP 16 1178 11024
Poggiodomo PG 16 117 11141
Cerreto di Spoleto PG 16 1075 12216
Visso MC 17 1107 13323
Cittareale RI 18 482 13805
Ussita MC 19 444 14249
Monteleone di Spoleto PG 19 599 14848
Sellano PG 19 1079 15927
Montegallo AP 20 523 16450
Vallo di Nera PG 20 364 16814

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km SE of Foligno (57155 inhabitants)
45 Km NE of Terni (111501 inhabitants)
51 Km W of Teramo (54892 inhabitants)
53 Km NW of L'Aquila (69753 inhabitants)
69 Km SE of Perugia (166134 inhabitants)
90 Km W of Montesilvano (53738 inhabitants)
91 Km E of Viterbo (67173 inhabitants)
92 Km NE of Guidonia Montecelio (88673 inhabitants)
94 Km N of Tivoli (56533 inhabitants)
97 Km W of Pescara (121014 inhabitants)
99 Km W of Chieti (51815 inhabitants)
99 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 1.0 2021-11-24
23:50:13
42.7773 13.1065 10 2021-11-25
00:10:43
Sala Sismica INGV-Roma 97768351
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-11-24 23:50:13 ± 0.26
Latitude 42.7773 ± 0.0135
Longitude 13.1065 ± 0.0110
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 97768351

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1507
Semi-minor axis of confidence ellipse (meter) 912
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 168
Circular confidence region, given by single value of horizontal uncertainty (meter) 1510
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 274
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 1.00364
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.5
Num. used stations 18
Type of magnitude ML
Reference to an origin 97768351
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-11-25 00:10:43
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.CANO.HHZ. 2021-11-24T23:51:57.24 3.0 undecidable manual Sn -1.99 0
GU.BURY.HHZ. 2021-11-24T23:51:20.77 3.0 positive manual Pg 9.69 0
IV.MAGA.HHZ. 2021-11-24T23:51:09.09 3.0 undecidable manual Pn 4.12 0
IV.FIR.HHZ. 2021-11-24T23:51:04.35 3.0 undecidable manual Sn -5.11 0
IV.CDRU.HHZ. 2021-11-24T23:51:03.32 3.0 undecidable manual Sn -3.86 0
IV.SNR3.EHZ.02 2021-11-24T23:51:02.39 3.0 undecidable manual S 0
IV.MBAL.EHZ. 2021-11-24T23:51:02.65 3.0 undecidable manual Pn -0.31 0
IV.MCRV.HHZ. 2021-11-24T23:51:01.59 3.0 undecidable manual Sg 0
IV.SNAL.HHZ. 2021-11-24T23:51:00.52 3.0 undecidable manual Sg 2.24 0
IV.MCRV.HHZ. 2021-11-24T23:50:59.42 3.0 undecidable manual P 0
IV.SNR3.EHZ.02 2021-11-24T23:50:59.87 3.0 undecidable manual P 0
IV.PE3.EHZ. 2021-11-24T23:50:54.11 3.0 undecidable manual Sg -1.23 0
OT.OT17.EHZ. 2021-11-24T23:50:50.66 3.0 undecidable manual Sg -0.73 0
IV.MMUR.HNZ. 2021-11-24T23:50:48.77 3.0 undecidable manual Sg 2.13 0
IV.RIBO.EHZ.01 2021-11-24T23:50:36.07 3.0 negative manual Pg 1.73 0
IV.CRTC.HHZ. 2021-11-24T23:50:32.24 0.1 undecidable manual P 351 1.0036 50 0.43 79
IV.CSP1.EHZ. 2021-11-24T23:50:25.36 0.3 undecidable manual S 13 0.322 50 0.03 74
IV.FDMO.HHZ. 2021-11-24T23:50:23.28 0.3 undecidable manual S 357 0.259 50 -0.18 73
IV.CESI.HHZ. 2021-11-24T23:50:23.73 0.3 undecidable manual S 327 0.2716 50 -0.09 74
IV.MMO1.EHZ. 2021-11-24T23:50:21.44 0.3 undecidable manual S 53 0.2023 114 -0.18 74
IV.CSP1.EHZ. 2021-11-24T23:50:20.14 0.1 undecidable manual P 13 0.322 50 -0.01 99
IV.MC2.EHZ. 2021-11-24T23:50:20.26 0.6 undecidable manual S 24 0.1466 122 0.53 46
IV.CESI.HHZ. 2021-11-24T23:50:19.24 0.1 undecidable manual P 327 0.2716 50 -0.04 100
IV.FDMO.HHZ. 2021-11-24T23:50:18.91 0.1 undecidable manual P 357 0.259 50 -0.17 98
IV.MC2.EHZ. 2021-11-24T23:50:17.13 0.1 undecidable manual P 24 0.1466 122 0.21 99
IV.MMO1.EHZ. 2021-11-24T23:50:17.91 0.1 undecidable manual P 53 0.2023 114 -0.11 100
IV.NRCA.HHZ. 2021-11-24T23:50:16.83 0.3 undecidable manual S 6 0.0567 148 -0.35 73
IV.NRCA.HHZ. 2021-11-24T23:50:15.56 0.3 undecidable manual P 6 0.0567 148 0.11 77
IV.RMP.HHZ. 2021-11-24T23:50:13.65 3.0 undecidable manual P -0.25 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.2 0.0002745 0.16 AML other m 2021-11-24T23:50:16.99
IV.NRCA.HHN. ML:1.2 0.000253 0.14 AML other m 2021-11-24T23:50:16.89
IV.MCRV.HHN. ML:0 0.00021658315 0.256 AML other m 2021-11-24T23:51:02.20
IV.MCRV.HHE. ML:0 9.2286185E-5 0.1024 AML other m 2021-11-24T23:51:01.95
IX.SNR3.EHE.02 ML:0 8.952651E-5 0.32 AML other m 2021-11-24T23:51:03.10
IX.SNR3.EHN.02 ML:0 0.0001439999 0.192 AML other m 2021-11-24T23:51:04.22
IV.MBAL.EHE. ML:3.6 0.00026078425 0.0512 AML other m 2021-11-24T23:51:36.34
IV.MBAL.EHN. ML:3.5 0.0002145844 0.0768 AML other m 2021-11-24T23:51:39.37
IV.RMP.HHE. ML:2.2 0.0001467203 0.2048 AML other m 2021-11-24T23:50:17.00
IV.RMP.HHN. ML:2.5 0.00024011575 0.2688 AML other m 2021-11-24T23:50:20.54
IV.NRCA.HNE. ML:1.2 0.0002641306 0.1408 AML other m 2021-11-24T23:50:16.91
IV.NRCA.HNN. ML:1.2 0.00024486085 0.6784 AML other m 2021-11-24T23:50:33.50
IV.MC2.EHE. ML:0.7 4.67961E-5 0.32 AML other m 2021-11-24T23:50:20.00
IV.MC2.EHN. ML:0.7 4.71856E-5 0.2176 AML other m 2021-11-24T23:50:20.93
IV.MMO1.HNE. ML:3 0.006598065 0.9856 AML other m 2021-11-24T23:50:33.41
IV.MMO1.HNN. ML:3 0.0061386075 1.0112 AML other m 2021-11-24T23:50:38.93
IV.MMO1.EHE. ML:0.6 2.376173E-5 1.2032 AML other m 2021-11-24T23:50:32.52
IV.MMO1.EHN. ML:0.5 2.235966E-5 2.1248 AML other m 2021-11-24T23:50:40.07
IV.FDMO.HHE. ML:0.5 1.39966945E-5 1.2544 AML other m 2021-11-24T23:50:33.59
IV.FDMO.HHN. ML:0.3 1.11349265E-5 0.3072 AML other m 2021-11-24T23:50:23.28
IV.CESI.HNE. ML:1.4 0.00012664545 0.6144 AML other m 2021-11-24T23:50:31.69
IV.CESI.HNN. ML:1.6 0.000185259725 0.96 AML other m 2021-11-24T23:50:24.16
IV.CESI.HHE. ML:0.6 1.863546E-5 1.5232 AML other m 2021-11-24T23:50:41.93
IV.CESI.HHN. ML:0.7 2.720898E-5 0.256 AML other m 2021-11-24T23:50:23.76
IV.CSP1.EHE. ML:1.3 8.0585265E-5 1.8816 AML other m 2021-11-24T23:50:38.98
IV.CSP1.EHN. ML:1.1 4.61716997E-5 1.0112 AML other m 2021-11-24T23:50:36.62
IV.CRTC.HHE. ML:1.9 6.1591E-5 0.9472 AML other m 2021-11-24T23:50:48.56
IV.CRTC.HHN. ML:1.9 7.129029E-5 1.2544 AML other m 2021-11-24T23:50:34.26
IV.CRTC.HNE. ML:3.9 0.007434102 0.9856 AML other m 2021-11-24T23:50:47.72
IV.CRTC.HNN. ML:3.9 0.0061873155 0.5888 AML other m 2021-11-24T23:50:36.25
IV.RIBO.EHE.01 ML:2 4.496049E-5 0.5376 AML other m 2021-11-24T23:50:35.18
IV.RIBO.EHN.01 ML:2.6 0.000147306825 1.0752 AML other m 2021-11-24T23:50:43.21
IX.SNR3.HNE.01 ML:3.2 0.00024479335 1.2928 AML other m 2021-11-24T23:51:28.05
IX.SNR3.HNN.01 ML:3.2 0.00020605845 0.96 AML other m 2021-11-24T23:51:15.19
IV.MBAL.HNE. ML:3.4 0.00017724555 0.0768 AML other m 2021-11-24T23:51:49.08
IV.MBAL.HNN. ML:3.6 0.00028119325 0.0768 AML other m 2021-11-24T23:51:48.03
IV.MAGA.HHE. ML:2.8 4.5299885E-5 0.832 AML other m 2021-11-24T23:52:33.45
IV.MAGA.HHN. ML:2.6 2.293468E-5 1.0112 AML other m 2021-11-24T23:51:34.89
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