Earthquake with magnitude of ML 0.7 on date 22-11-2021 and time 17:29:14 (Italy) in region 2 km E Ussita (MC)

A magnitude ML 0.7 earthquake occured in region: 2 km E Ussita (MC), on

  • 22-11-2021 16:29:14 (UTC)
  • 22-11-2021 17:29:14 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.946, 13.164 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 2 444 444
Castelsantangelo sul Nera MC 6 281 725
Visso MC 6 1107 1832
Bolognola MC 8 142 1974
Acquacanina MC 10 121 2095
Fiastra MC 10 559 2654
Fiordimonte MC 12 202 2856
Preci PG 13 724 3580
Monte Cavallo MC 14 145 3725
Montemonaco AP 14 604 4329
Pieve Torina MC 14 1458 5787
Montefortino FM 15 1178 6965
Pievebovigliana MC 15 866 7831
Sarnano MC 15 3264 11095
Amandola FM 16 3629 14724
Montegallo AP 18 523 15247
Norcia PG 18 4957 20204
Muccia MC 18 915 21119
Gualdo MC 20 815 21934
Cessapalombo MC 20 512 22446

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km E of Foligno (57155 inhabitants)
54 Km NW of Teramo (54892 inhabitants)
60 Km NE of Terni (111501 inhabitants)
66 Km E of Perugia (166134 inhabitants)
69 Km N of L'Aquila (69753 inhabitants)
80 Km SW of Ancona (100861 inhabitants)
94 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 0.7 2021-11-22
16:29:14
42.9457 13.164 10 2021-11-22
16:49:52
Sala Sismica INGV-Roma 97693931
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-11-22 16:29:14 ± 0.11
Latitude 42.9457 ± 0.0036
Longitude 13.1640 ± 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 97693931

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 483
Semi-minor axis of confidence ellipse (meter) 171
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 49
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) 83
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.25451
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 8
Type of magnitude ML
Reference to an origin 97693931
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-11-22 16:49:52
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ATPI.EHZ. 2021-11-22T16:29:37.48 3.0 undecidable manual S -0.64 0
IV.MML1.EHZ. 2021-11-22T16:29:23.09 0.3 undecidable manual S 320 0.2185 112 -0.11 72
IV.CSP1.EHZ. 2021-11-22T16:29:20.53 0.3 undecidable manual S 12 0.1493 121 -0.26 71
IV.FEMA.HNZ. 2021-11-22T16:29:19.12 0.3 undecidable manual S 281 0.0854 136 0.27 72
IV.MMO1.EHZ. 2021-11-22T16:29:19.86 0.3 undecidable manual S 111 0.1277 125 -0.25 71
IV.NRCA.HNZ. 2021-11-22T16:29:19.59 0.3 undecidable manual S 198 0.1178 127 -0.2 72
IV.MML1.EHZ. 2021-11-22T16:29:19.22 0.3 undecidable manual P 320 0.2185 112 -0.13 72
IV.MF5.EHZ. 2021-11-22T16:29:19.75 0.3 undecidable manual P 79 0.2203 112 0.37 68
IV.MTRA.HNZ. 2021-11-22T16:29:19.78 0.3 undecidable manual P 138 0.2545 50 -0.23 70
IV.FDMO.HHZ. 2021-11-22T16:29:19.12 0.3 undecidable manual S 328 0.107 130 -0.34 70
IV.CESI.HHZ. 2021-11-22T16:29:18.86 0.3 undecidable manual P 287 0.1988 114 -0.08 73
IV.CSP1.EHZ. 2021-11-22T16:29:18.45 0.3 undecidable manual P 12 0.1493 121 0.49 68
IV.FDMO.HHZ. 2021-11-22T16:29:17.22 0.1 undecidable manual P 328 0.107 130 0.03 100
IT.MTCL.HGZ. 2021-11-22T16:29:17.61 0.3 undecidable manual P 292 0.1295 125 0.01 75
IV.FEMA.HNZ. 2021-11-22T16:29:17.04 0.3 undecidable manual P 281 0.0854 136 0.2 73
IV.MMO1.EHZ. 2021-11-22T16:29:17.58 0.3 undecidable manual P 111 0.1277 125 0.01 75
IV.NRCA.HNZ. 2021-11-22T16:29:17.45 0.3 undecidable manual P 198 0.1178 127 0.06 74
IV.MC2.EHZ. 2021-11-22T16:29:17.83 0.3 undecidable manual S 152 0.0387 157 -0.03 76
IV.MC2.EHZ. 2021-11-22T16:29:16.44 0.3 undecidable manual P 152 0.0387 157 0.18 74
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MC2.EHE. ML:1.1 0.0002225 1.76 AML other m 2021-11-22T16:29:18.07
IV.MC2.EHN. ML:1.4 0.00046 0.24 AML other m 2021-11-22T16:29:18.18
IV.FDMO.HHN. ML:0.8 7.645E-5 0.2 AML other m 2021-11-22T16:29:19.47
IV.FDMO.HHE. ML:0.6 4.25E-5 0.24 AML other m 2021-11-22T16:29:19.52
IV.MMO1.EHE. ML:0.7 5.3875085E-5 0.0128 AML other m 2021-11-22T16:29:20.13
IV.MMO1.EHN. ML:0.5 2.882134E-5 0.1024 AML other m 2021-11-22T16:29:20.52
IV.MML1.EHE. ML:0.4 1.452218E-5 0.1536 AML other m 2021-11-22T16:29:23.16
IV.MML1.EHN. ML:0.4 1.6767293E-5 0.1664 AML other m 2021-11-22T16:29:23.30
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