Earthquake with magnitude of ML 0.5 on date 20-11-2021 and time 01:49:10 (Italy) in region 1 km E Caldarola (MC)

A magnitude ML 0.5 earthquake occured in region: 1 km E Caldarola (MC), on

  • 20-11-2021 00:49:10 (UTC)
  • 20-11-2021 01:49:10 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.142, 13.239 at 6 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
Caldarola MC 1 1823 1823
Camporotondo di Fiastrone MC 2 563 2386
Belforte del Chienti MC 3 1886 4272
Cessapalombo MC 4 512 4784
Serrapetrona MC 6 966 5750
San Ginesio MC 7 3498 9248
Tolentino MC 8 20069 29317
Colmurano MC 10 1263 30580
Ripe San Ginesio MC 11 852 31432
San Severino Marche MC 11 12726 44158
Gualdo MC 12 815 44973
Urbisaglia MC 13 2628 47601
Sarnano MC 13 3264 50865
Acquacanina MC 13 121 50986
Fiastra MC 14 559 51545
Sant'Angelo in Pontano MC 14 1436 52981
Camerino MC 14 6974 59955
Loro Piceno MC 15 2401 62356
Pievebovigliana MC 15 866 63222
Bolognola MC 16 142 63364
Castelraimondo MC 17 4587 67951
Pollenza MC 17 6618 74569
Fiordimonte MC 17 202 74771
Muccia MC 17 915 75686
Gagliole MC 18 620 76306
Penna San Giovanni MC 18 1108 77414
Pieve Torina MC 19 1458 78872
Montappone FM 19 1682 80554
Massa Fermana FM 19 963 81517
Falerone FM 20 3337 84854
Treia MC 20 9403 94257

Municipalities with at least 50000 inhabitants

An earthquake occurred to
48 Km E of Foligno (57155 inhabitants)
58 Km SW of Ancona (100861 inhabitants)
66 Km NW of Teramo (54892 inhabitants)
69 Km E of Perugia (166134 inhabitants)
80 Km S of Fano (60888 inhabitants)
81 Km NE of Terni (111501 inhabitants)
89 Km N of L'Aquila (69753 inhabitants)
89 Km SE of Pesaro (94582 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 0.5 2021-11-20
00:49:10
43.142 13.2393 6 2021-11-20
00:54:24
Sala Sismica INGV-Roma 97611451
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-11-20 00:49:10 ± 0.15
Latitude 43.1420 ± 0.0045
Longitude 13.2393 ± 0.0074
Depth (km) 6 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 97611451

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 604
Semi-minor axis of confidence ellipse (meter) 299
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 64
Circular confidence region, given by single value of horizontal uncertainty (meter) 600
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 142
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) 0.34
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.25091
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 9
Magnitude information

ML:0.5

Field Value
Value 0.5
Uncertainty 0.3
Num. used stations 2
Type of magnitude ML
Reference to an origin 97611451
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-11-20 00:54:24
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.LPEL.HHZ. 2021-11-20T00:49:29.26 3.0 positive manual P -0.07 0
IV.CING.HHZ. 2021-11-20T00:49:20.07 0.1 undecidable manual S 352 0.2356 103 -0.16 95
IV.MMO1.EHZ. 2021-11-20T00:49:20.36 0.1 undecidable manual S 165 0.2509 102 -0.44 89
IV.MF5.EHZ. 2021-11-20T00:49:20.41 0.3 undecidable manual S 134 0.223 103 0.66 62
IV.EL6.EHZ. 2021-11-20T00:49:19.81 0.1 undecidable manual S 332 0.2122 104 0.46 89
IV.MML1.EHZ. 2021-11-20T00:49:19.12 0.1 undecidable manual S 262 0.197 105 0.33 92
IV.FDMO.HHZ. 2021-11-20T00:49:17.31 0.1 undecidable manual S 226 0.1529 109 0.15 96
IV.MF5.EHZ. 2021-11-20T00:49:16.05 0.1 undecidable manual P 134 0.223 103 0.03 97
IV.GUMA.HHZ. 2021-11-20T00:49:16.07 0.1 undecidable manual S 139 0.1061 116 0.59 87
IV.MMO1.EHZ. 2021-11-20T00:49:16.02 0.1 undecidable manual P 165 0.2509 102 -0.61 84
IV.MML1.EHZ. 2021-11-20T00:49:15.54 0.1 undecidable manual P 262 0.197 105 0.07 97
IV.EL6.EHZ. 2021-11-20T00:49:15.79 0.1 undecidable manual P 332 0.2122 104 0 98
IV.CING.HHZ. 2021-11-20T00:49:15.94 0.1 undecidable manual P 352 0.2356 103 -0.36 91
IV.FDMO.HHZ. 2021-11-20T00:49:14.54 0.1 undecidable manual P 226 0.1529 109 0.01 99
IV.GUMA.HHZ. 2021-11-20T00:49:13.40 0.1 undecidable manual P 139 0.1061 116 -0.16 97
IV.CSP1.EHZ. 2021-11-20T00:49:13.79 0.1 undecidable manual S 207 0.0558 133 -0.1 99
IV.PF6.EHZ. 2021-11-20T00:49:13.02 0.1 undecidable manual S 263 0.0333 148 -0.3 95
IV.PF6.EHZ. 2021-11-20T00:49:12.23 0.1 undecidable manual P 263 0.0333 148 -0.08 100
IV.CSP1.EHZ. 2021-11-20T00:49:12.74 0.1 positive manual P 207 0.0558 133 0.1 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CSP1.EHE. ML:0 0.0003015 0.78 AML other m 2021-11-20T00:49:14.05
IV.CSP1.EHN. ML:0 0.0002875 0.36 AML other m 2021-11-20T00:49:14.34
IV.FDMO.HHE. ML:0.8 5.305E-5 0.24 AML other m 2021-11-20T00:49:17.70
IV.FDMO.HHN. ML:0.3 2.185E-5 0.22 AML other m 2021-11-20T00:49:17.97
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