Earthquake with magnitude of ML 0.7 on date 25-11-2021 and time 04:46:54 (Italy) in region 3 km NW Ussita (MC)

A magnitude ML 0.7 earthquake occured in region: 3 km NW Ussita (MC), on

  • 25-11-2021 03:46:54 (UTC)
  • 25-11-2021 04:46:54 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.966, 13.119 at 9 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 3 444 444
Visso MC 5 1107 1551
Castelsantangelo sul Nera MC 8 281 1832
Fiordimonte MC 8 202 2034
Fiastra MC 9 559 2593
Acquacanina MC 9 121 2714
Bolognola MC 9 142 2856
Monte Cavallo MC 10 145 3001
Pieve Torina MC 10 1458 4459
Pievebovigliana MC 11 866 5325
Preci PG 12 724 6049
Muccia MC 14 915 6964
Sarnano MC 17 3264 10228
Sellano PG 18 1079 11307
Serravalle di Chienti MC 18 1070 12377
Montefortino FM 18 1178 13555
Montemonaco AP 19 604 14159
Norcia PG 19 4957 19116
Amandola FM 19 3629 22745
Camerino MC 19 6974 29719
Cessapalombo MC 20 512 30231

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km E of Foligno (57155 inhabitants)
59 Km NW of Teramo (54892 inhabitants)
59 Km NE of Terni (111501 inhabitants)
61 Km E of Perugia (166134 inhabitants)
72 Km NW of L'Aquila (69753 inhabitants)
79 Km SW of Ancona (100861 inhabitants)
98 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 0.7 2021-11-25
03:46:54
42.9658 13.1188 9 2021-11-25
03:51:38
Sala Sismica INGV-Roma 97771041
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-11-25 03:46:54 ± 0.1
Latitude 42.9658 ± 0.0036
Longitude 13.1188 ± 0.0061
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 97771041

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 423
Semi-minor axis of confidence ellipse (meter) 387
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 16
Circular confidence region, given by single value of horizontal uncertainty (meter) 420
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 85
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.25001
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 11
Magnitude information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 97771041
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-11-25 03:51:38
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ARVD.HHZ. 2021-11-25T03:47:11.77 3.0 undecidable manual S -0.21 0
IV.MF5.EHZ. 2021-11-25T03:47:05.51 0.6 undecidable manual S 85 0.25 107 0.48 45
IV.PF6.EHZ. 2021-11-25T03:47:02.05 0.6 undecidable manual S 18 0.1808 113 -0.46 44
IV.MML1.EHZ. 2021-11-25T03:47:02.39 0.6 undecidable manual S 324 0.1826 113 -0.19 48
IV.MMO1.EHZ. 2021-11-25T03:47:01.60 0.6 undecidable manual S 114 0.1664 115 -0.4 44
IV.MF5.EHZ. 2021-11-25T03:47:01.15 0.1 undecidable manual P 85 0.25 107 0.39 89
IV.CESI.HHZ. 2021-11-25T03:47:01.75 0.6 undecidable manual S 284 0.1619 116 -0.09 50
IV.CSP1.EHZ. 2021-11-25T03:47:01.05 0.6 undecidable manual S 26 0.1412 119 -0.08 48
IV.NRCA.HHZ. 2021-11-25T03:47:00.66 0.6 undecidable manual S 181 0.1322 120 -0.18 48
IV.FDMO.HHZ. 2021-11-25T03:46:59.30 0.6 undecidable manual S 342 0.0746 136 0.22 50
IV.MC2.EHZ. 2021-11-25T03:46:59.46 0.6 undecidable manual S 137 0.0746 136 0.38 49
IV.PF6.EHZ. 2021-11-25T03:46:59.61 0.1 undecidable manual P 18 0.1808 113 0.3 93
IV.MML1.EHZ. 2021-11-25T03:46:59.21 1.0 undecidable manual P 324 0.1826 113 -0.14 25
IT.MTCL.HGZ. 2021-11-25T03:46:59.58 0.6 undecidable manual S 288 0.0917 130 0.01 50
IV.CSP1.EHZ. 2021-11-25T03:46:58.47 0.3 positive manual P 26 0.1412 119 -0.04 74
IV.MMO1.EHZ. 2021-11-25T03:46:58.75 0.3 negative manual P 114 0.1664 115 -0.26 70
IV.FEMA.HNZ. 2021-11-25T03:46:58.94 0.6 undecidable manual S 266 0.0504 147 0.44 48
IV.CESI.HHZ. 2021-11-25T03:46:58.78 0.6 undecidable manual P 284 0.1619 116 -0.14 50
IV.NRCA.HHZ. 2021-11-25T03:46:58.16 0.1 positive manual P 181 0.1322 120 -0.19 97
IT.MTCL.HGZ. 2021-11-25T03:46:57.50 0.1 undecidable manual P 288 0.0917 130 -0.11 100
IV.MC2.EHZ. 2021-11-25T03:46:57.58 0.6 undecidable manual P 137 0.0746 136 0.25 49
IV.FEMA.HNZ. 2021-11-25T03:46:57.09 0.1 undecidable manual P 266 0.0504 147 0.09 100
IV.FDMO.HHZ. 2021-11-25T03:46:56.92 1.0 undecidable manual P 342 0.0746 136 -0.41 23
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:0.6 4.18E-5 1.54 AML other m 2021-11-25T03:47:01.80
IV.NRCA.HHN. ML:0.6 4.165E-5 0.12 AML other m 2021-11-25T03:47:02.09
IV.FDMO.HHE. ML:0.4 3.292294E-5 0.1824 AML other m 2021-11-25T03:46:59.32
IV.FDMO.HHN. ML:0.4 3.6741895E-5 0.1792 AML other m 2021-11-25T03:46:59.50
IV.MC2.EHE. ML:0.8 0.000109808045 0.08 AML other m 2021-11-25T03:46:59.86
IV.MC2.EHN. ML:1.1 0.0002100549 0.1184 AML other m 2021-11-25T03:46:59.94
IV.NRCA.HNE. ML:1 9.323409E-5 0.752 AML other m 2021-11-25T03:47:06.92
IV.NRCA.HNN. ML:1.1 0.00013803515 0.4704 AML other m 2021-11-25T03:47:04.49
IV.CSP1.EHE. ML:0.8 6.6138425E-5 0.8992 AML other m 2021-11-25T03:46:59.44
IV.CSP1.EHN. ML:1 9.947151E-5 0.16 AML other m 2021-11-25T03:47:01.34
IV.MMO1.EHE. ML:0.5 2.548992E-5 0.1184 AML other m 2021-11-25T03:47:01.90
IV.MMO1.EHN. ML:0.4 2.21091175E-5 0.08 AML other m 2021-11-25T03:47:01.77
IV.MMO1.HNE. ML:2.8 0.005832812 0.7488 AML other m 2021-11-25T03:46:59.65
IV.MMO1.HNN. ML:2.7 0.0042180885 0.6208 AML other m 2021-11-25T03:47:04.56
IV.CESI.HHE. ML:0.2 1.55357875E-5 0.0608 AML other m 2021-11-25T03:47:02.11
IV.CESI.HHN. ML:0.2 1.4489346E-5 0.1408 AML other m 2021-11-25T03:47:02.11
IV.MML1.EHE. ML:0.3 1.3549129E-5 0.8416 AML other m 2021-11-25T03:47:08.04
IV.MML1.HNE. ML:1 7.8057915E-5 0.5088 AML other m 2021-11-25T03:47:07.26
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