Earthquake with magnitude of ML 1.0 on date 25-11-2021 and time 11:43:14 (Italy) in region 4 km NE Ussita (MC)

A magnitude ML 1.0 earthquake occured in region: 4 km NE Ussita (MC), on

  • 25-11-2021 10:43:14 (UTC)
  • 25-11-2021 11:43:14 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.975, 13.175 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
Ussita MC 4 444 444
Bolognola MC 5 142 586
Acquacanina MC 6 121 707
Fiastra MC 7 559 1266
Visso MC 9 1107 2373
Castelsantangelo sul Nera MC 9 281 2654
Fiordimonte MC 10 202 2856
Pievebovigliana MC 12 866 3722
Sarnano MC 12 3264 6986
Pieve Torina MC 13 1458 8444
Montefortino FM 14 1178 9622
Monte Cavallo MC 14 145 9767
Amandola FM 15 3629 13396
Montemonaco AP 15 604 14000
Preci PG 15 724 14724
Muccia MC 16 915 15639
Cessapalombo MC 17 512 16151
Gualdo MC 17 815 16966
Caldarola MC 19 1823 18789
San Ginesio MC 19 3498 22287
Camporotondo di Fiastrone MC 19 563 22850
Montegallo AP 20 523 23373
Comunanza AP 20 3166 26539
Camerino MC 20 6974 33513

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km E of Foligno (57155 inhabitants)
56 Km NW of Teramo (54892 inhabitants)
63 Km NE of Terni (111501 inhabitants)
66 Km E of Perugia (166134 inhabitants)
72 Km N of L'Aquila (69753 inhabitants)
77 Km SW of Ancona (100861 inhabitants)
95 Km NW of Montesilvano (53738 inhabitants)
98 Km S of Fano (60888 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 2021-11-25
10:43:14
42.975 13.1752 10 2021-11-25
10:49:12
Sala Sismica INGV-Roma 97777761
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-11-25 10:43:14 ± 0.13
Latitude 42.9750 ± 0.0045
Longitude 13.1752 ± 0.0061
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 97777761

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 548
Semi-minor axis of confidence ellipse (meter) 342
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 227
Circular confidence region, given by single value of horizontal uncertainty (meter) 550
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 113
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
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) 0.06475
Epicentral distance of station farthest from the epicenter (degree) 0.34984
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.4
Num. used stations 22
Type of magnitude ML
Reference to an origin 97777761
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-11-25 10:49:12
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.GAVE.EHZ. 2021-11-25T10:43:22.30 1.0 negative manual P 216 0.3498 50 0.5 22
IV.MML1.EHZ. 2021-11-25T10:43:22.55 0.6 undecidable manual S 313 0.2032 113 -0.17 49
IV.MMO1.EHZ. 2021-11-25T10:43:20.16 0.6 undecidable manual S 124 0.134 123 -0.22 49
IV.CSP1.EHZ. 2021-11-25T10:43:20.09 0.6 undecidable manual S 11 0.1187 126 0.2 49
IV.MML1.EHZ. 2021-11-25T10:43:19.00 1.0 negative manual P 313 0.2032 113 -0.13 25
IV.FDMO.HHZ. 2021-11-25T10:43:19.01 0.6 undecidable manual S 314 0.089 134 0.01 52
IV.MC2.EHZ. 2021-11-25T10:43:18.62 0.6 undecidable manual S 171 0.0648 143 0.24 49
IV.CESI.HHZ. 2021-11-25T10:43:18.93 0.3 positive manual P 279 0.1996 113 -0.14 74
IV.CSP1.EHZ. 2021-11-25T10:43:17.61 0.6 negative manual P 11 0.1187 126 0.12 50
IV.MMO1.EHZ. 2021-11-25T10:43:17.66 0.1 undecidable manual P 124 0.134 123 -0.12 100
IV.FDMO.HHZ. 2021-11-25T10:43:17.04 1.0 undecidable manual P 314 0.089 134 0.06 26
IV.MC2.EHZ. 2021-11-25T10:43:16.78 1.0 undecidable manual P 171 0.0648 143 0.16 25
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:1 6.623343E-5 3.1616 AML other m 2021-11-25T10:43:26.42
IV.CESI.HHN. ML:0.8 3.8616245E-5 0.32 AML other m 2021-11-25T10:43:22.67
IV.MC2.EHE. ML:0.9 0.00013085205 5.9776 AML other m 2021-11-25T10:43:18.76
IV.MC2.EHN. ML:0.9 0.0001158056 6.5216 AML other m 2021-11-25T10:43:19.04
IV.FDMO.HHE. ML:0.5 4.3865535E-5 0.2176 AML other m 2021-11-25T10:43:19.17
IV.FDMO.HHN. ML:0.5 4.4520205E-5 0.4416 AML other m 2021-11-25T10:43:19.29
IV.CSP1.EHE. ML:0.9 8.5337985E-5 1.8432 AML other m 2021-11-25T10:43:23.59
IV.CSP1.EHN. ML:1 0.000106141515 1.9456 AML other m 2021-11-25T10:43:24.02
IV.MMO1.EHE. ML:0.7 4.8913555E-5 0.1216 AML other m 2021-11-25T10:43:20.28
IV.MMO1.EHN. ML:0.5 3.1915875E-5 1.6 AML other m 2021-11-25T10:43:24.19
IV.MMO1.HNE. ML:2.8 0.006266639 1.8304 AML other m 2021-11-25T10:43:23.46
IV.MMO1.HNN. ML:2.8 0.006046086 1.1072 AML other m 2021-11-25T10:43:22.74
IV.CESI.HNE. ML:1.4 0.000176430535 10.88 AML other m 2021-11-25T10:43:30.66
IV.CESI.HNN. ML:1.5 0.00022213896 0.768 AML other m 2021-11-25T10:43:30.08
IV.MML1.EHE. ML:0.8 4.1249465E-5 1.8432 AML other m 2021-11-25T10:43:20.72
IV.MML1.EHN. ML:0.7 2.9397165E-5 4.3648 AML other m 2021-11-25T10:43:20.33
IV.MML1.HNE. ML:1.3 0.000125992 1.4976 AML other m 2021-11-25T10:43:24.37
IV.MML1.HNN. ML:1.2 0.000116014615 1.1328 AML other m 2021-11-25T10:43:23.16
IV.GAVE.HNE. ML:1.5 0.000124630995 3.5392 AML other m 2021-11-25T10:43:35.99
IV.GAVE.HNN. ML:1.8 0.0002404471 1.3504 AML other m 2021-11-25T10:43:40.48
IV.GAVE.EHE. ML:1.1 4.592984E-5 3.1808 AML other m 2021-11-25T10:43:35.95
IV.GAVE.EHN. ML:1.3 6.9877375E-5 5.504 AML other m 2021-11-25T10:43:24.92
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