Earthquake with magnitude of ML 1.0 on date 07-11-2021 and time 12:16:17 (Italy) in region 2 km SE Ussita (MC)

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

  • 07-11-2021 11:16:17 (UTC)
  • 07-11-2021 12:16:17 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.932, 13.164 at 15 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
Ussita MC 2 444 444
Castelsantangelo sul Nera MC 4 281 725
Visso MC 6 1107 1832
Bolognola MC 9 142 1974
Acquacanina MC 11 121 2095
Fiastra MC 12 559 2654
Preci PG 12 724 3378
Fiordimonte MC 13 202 3580
Montemonaco AP 14 604 4184
Montefortino FM 15 1178 5362
Monte Cavallo MC 15 145 5507
Pieve Torina MC 16 1458 6965
Pievebovigliana MC 16 866 7831
Sarnano MC 16 3264 11095
Norcia PG 17 4957 16052
Amandola FM 17 3629 19681
Montegallo AP 17 523 20204
Muccia MC 19 915 21119
Sellano PG 20 1079 22198

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km E of Foligno (57155 inhabitants)
54 Km NW of Teramo (54892 inhabitants)
59 Km NE of Terni (111501 inhabitants)
66 Km E of Perugia (166134 inhabitants)
67 Km N of L'Aquila (69753 inhabitants)
82 Km SW of Ancona (100861 inhabitants)
93 Km NW of Montesilvano (53738 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 2021-11-07
11:16:17
42.9323 13.1635 15 2021-11-07
12:16:20
Sala Sismica INGV-Roma 97315391
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-11-07 11:16:17 ± 0.24
Latitude 42.9323 ± 0.0090
Longitude 13.1635 ± 0.0123
Depth (km) 15 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 97315391

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1010
Semi-minor axis of confidence ellipse (meter) 668
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 87
Circular confidence region, given by single value of horizontal uncertainty (meter) 1010
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 32
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.22933
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 97315391
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-11-07 12:16:20
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MTSN.HHZ. 2021-11-07T11:17:58.77 3.0 undecidable manual Sg 1.36 0
TV.SU26.HHZ. 2021-11-07T11:17:41.78 3.0 undecidable manual Pg 6.19 0
IV.MILZ.HHZ. 2021-11-07T11:17:40.25 3.0 undecidable manual Pg 5.1 0
IV.NOCI.HHZ. 2021-11-07T11:17:24.89 3.0 undecidable manual Pg 7.11 0
IV.ICAI.EHZ. 2021-11-07T11:17:22.41 3.0 undecidable manual Sn -9.29 0
SI.ROSI.HHZ. 2021-11-07T11:17:20.79 3.0 undecidable manual Pn 2.07 0
IV.VARE.HHZ. 2021-11-07T11:17:19.65 3.0 undecidable manual Pn -0.11 0
IV.MRLC.HHZ. 2021-11-07T11:17:13.17 3.0 undecidable manual Pg 6.86 0
IV.MCRV.HHZ. 2021-11-07T11:17:02.73 3.0 undecidable manual Pn -1.27 0
IV.INTR.HHZ. 2021-11-07T11:16:41.29 3.0 undecidable manual P -1.42 0
IV.ARCI.HHZ. 2021-11-07T11:16:35.83 3.0 undecidable manual P -2.89 0
IV.FRON.EHZ. 2021-11-07T11:16:33.24 3.0 undecidable manual S -0.29 0
IV.TERO.HHZ. 2021-11-07T11:16:28.78 3.0 undecidable manual P -3.57 0
IV.MML1.HNZ. 2021-11-07T11:16:27.65 0.6 undecidable manual S 322 0.2293 108 0.24 47
IV.COR1.EHZ. 2021-11-07T11:16:27.02 3.0 positive manual P -1.52 0
IV.CESI.HNZ. 2021-11-07T11:16:26.94 0.6 undecidable manual S 291 0.2023 111 0.26 47
IV.PF6.EHZ. 2021-11-07T11:16:26.94 0.6 undecidable manual S 6 0.2068 111 0.15 48
IV.CSP1.EHZ. 2021-11-07T11:16:25.70 0.6 undecidable manual S 11 0.1619 119 0.11 49
IV.FDMO.HHZ. 2021-11-07T11:16:24.11 0.3 undecidable manual S 332 0.1178 130 -0.4 70
IT.MTCL.HGZ. 2021-11-07T11:16:24.90 0.6 undecidable manual S 297 0.1349 125 0 50
IV.FEMA.HNZ. 2021-11-07T11:16:23.61 0.6 undecidable manual S 290 0.0881 140 -0.28 48
IV.CESI.HNZ. 2021-11-07T11:16:23.29 0.1 undecidable manual P 291 0.2023 111 0.28 94
IV.NRCA.HHZ. 2021-11-07T11:16:23.62 0.6 undecidable manual S 200 0.1052 134 -0.6 44
IV.FDMO.HHZ. 2021-11-07T11:16:22.00 0.1 undecidable manual P 332 0.1178 130 0.25 96
IV.MC2.EHZ. 2021-11-07T11:16:22.98 0.6 undecidable manual S 138 0.0279 166 -0.1 51
IV.CSP1.EHZ. 2021-11-07T11:16:22.82 1.0 undecidable manual P 11 0.1619 119 0.44 23
IV.PF6.EHZ. 2021-11-07T11:16:22.78 0.1 undecidable manual P 6 0.2068 111 -0.29 92
IV.MML1.HNZ. 2021-11-07T11:16:22.87 0.1 undecidable manual P 322 0.2293 108 -0.56 86
IT.MTCL.HGZ. 2021-11-07T11:16:21.98 0.1 undecidable manual P 297 0.1349 125 0 100
IV.FEMA.HNZ. 2021-11-07T11:16:21.61 0.1 undecidable manual P 290 0.0881 140 0.22 97
IV.MC2.EHZ. 2021-11-07T11:16:21.30 0.3 undecidable manual P 138 0.0279 166 0.38 71
IV.NRCA.HHZ. 2021-11-07T11:16:21.68 1.0 undecidable manual P 200 0.1052 134 0.09 25
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.2 0.000141 0.16 AML other m 2021-11-07T11:16:23.91
IV.NRCA.HHN. ML:1 8.02E-5 0.08 AML other m 2021-11-07T11:16:24.42
IV.FDMO.HHE. ML:0.6 3.375357E-5 0.1408 AML other m 2021-11-07T11:16:24.63
IV.FDMO.HHN. ML:0.9 6.7243435E-5 0.1408 AML other m 2021-11-07T11:16:24.69
IV.CSP1.EHE. ML:1.3 0.00013515825 2.144 AML other m 2021-11-07T11:16:24.12
IV.CSP1.EHN. ML:1 7.599495E-5 1.8624 AML other m 2021-11-07T11:16:25.37
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