Earthquake with magnitude of ML 1.4 on date 22-10-2021 and time 17:15:44 (UTC) in region 2 km W Sant'Angelo in Pontano (MC)

A magnitude ML 1.4 earthquake occured in region: 2 km W Sant'Angelo in Pontano (MC), on

  • 22-10-2021 17:15:44 (UTC)
  • 22-10-2021 19:15:44 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.11, 13.369 at 22 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
Sant'Angelo in Pontano MC 2 1436 1436
Ripe San Ginesio MC 4 852 2288
San Ginesio MC 4 3498 5786
Gualdo MC 5 815 6601
Colmurano MC 6 1263 7864
Penna San Giovanni MC 7 1108 8972
Loro Piceno MC 8 2401 11373
Falerone FM 9 3337 14710
Montappone FM 9 1682 16392
Camporotondo di Fiastrone MC 9 563 16955
Cessapalombo MC 9 512 17467
Monte Vidon Corrado FM 10 731 18198
Sarnano MC 10 3264 21462
Urbisaglia MC 10 2628 24090
Massa Fermana FM 10 963 25053
Monte San Martino MC 10 765 25818
Servigliano FM 11 2336 28154
Caldarola MC 12 1823 29977
Belforte del Chienti MC 12 1886 31863
Mogliano MC 13 4696 36559
Tolentino MC 13 20069 56628
Smerillo FM 13 365 56993
Montegiorgio FM 14 6851 63844
Belmonte Piceno FM 14 646 64490
Amandola FM 14 3629 68119
Santa Vittoria in Matenano FM 14 1330 69449
Monteleone di Fermo FM 15 395 69844
Petriolo MC 15 1998 71842
Montefalcone Appennino FM 15 424 72266
Monsampietro Morico FM 16 659 72925
Serrapetrona MC 16 966 73891
Francavilla d'Ete FM 17 964 74855
Montelparo FM 17 778 75633
Bolognola MC 17 142 75775
Comunanza AP 17 3166 78941
Pollenza MC 18 6618 85559
Acquacanina MC 18 121 85680
Magliano di Tenna FM 18 1452 87132
Montottone FM 18 979 88111
Montefortino FM 19 1178 89289
Grottazzolina FM 19 3398 92687
Force AP 19 1354 94041
Fiastra MC 19 559 94600
Rapagnano FM 19 2145 96745
Corridonia MC 19 15430 112175
Monte Rinaldo FM 19 379 112554
Monte San Pietrangeli FM 20 2458 115012

Municipalities with at least 50000 inhabitants

An earthquake occurred to
57 Km E of Foligno (57155 inhabitants)
57 Km NW of Teramo (54892 inhabitants)
58 Km S of Ancona (100861 inhabitants)
80 Km E of Perugia (166134 inhabitants)
84 Km N of L'Aquila (69753 inhabitants)
85 Km NE of Terni (111501 inhabitants)
86 Km SE of Fano (60888 inhabitants)
92 Km NW of Montesilvano (53738 inhabitants)
96 Km SE of Pesaro (94582 inhabitants)
99 Km NW of Pescara (121014 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 the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.4 2021-10-22
17:15:44
43.1097 13.3693 22 2021-10-22
17:20:23
Sala Sismica INGV-Roma 96882111
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-22 17:15:44 ± 0.25
Latitude 43.1097 ± 0.0090
Longitude 13.3693 ± 0.0111
Depth (km) 22 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 96882111

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 846
Semi-minor axis of confidence ellipse (meter) 832
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 268
Circular confidence region, given by single value of horizontal uncertainty (meter) 850
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 210
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) 0.27
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.51621
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:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 96882111
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-22 17:20:23
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.TERO.HHZ. 2021-10-22T17:16:03.24 0.3 undecidable manual S 160 0.5162 103 1.06 50
IV.CRTC.HHZ. 2021-10-22T17:15:58.43 3.0 negative manual P -0.12 0
IV.NRCA.HHZ. 2021-10-22T17:15:57.05 0.3 undecidable manual S 214 0.3327 112 0.05 73
IV.MML1.EHZ. 2021-10-22T17:15:56.33 0.6 undecidable manual S 271 0.2905 116 0.49 44
IV.MC2.EHZ. 2021-10-22T17:15:54.71 0.3 undecidable manual S 214 0.2383 122 0.22 71
IV.FDMO.HHZ. 2021-10-22T17:15:54.09 0.3 undecidable manual S 251 0.2185 125 0.08 74
IV.TERO.HHZ. 2021-10-22T17:15:54.45 1.0 negative manual P 160 0.5162 103 -0.09 23
IV.MMO1.EHZ. 2021-10-22T17:15:53.65 0.3 undecidable manual S 188 0.2122 126 -0.21 72
IV.MF5.EHZ. 2021-10-22T17:15:52.46 0.3 undecidable manual S 152 0.1385 140 0.22 72
IV.CSP1.EHZ. 2021-10-22T17:15:51.96 0.3 undecidable manual S 262 0.1214 144 0.03 75
IV.NRCA.HHZ. 2021-10-22T17:15:51.27 0.1 positive manual P 214 0.3327 112 -0.28 93
IV.MML1.EHZ. 2021-10-22T17:15:50.85 0.6 positive manual P 271 0.2905 116 -0.03 49
IV.SAP2.EHZ. 2021-10-22T17:15:50.84 0.6 undecidable manual S 121 0.0252 172 0.02 51
IV.MMO1.EHZ. 2021-10-22T17:15:49.33 0.3 negative manual P 188 0.2122 126 -0.41 69
IV.MC2.EHZ. 2021-10-22T17:15:49.98 0.1 undecidable manual P 214 0.2383 122 -0.12 98
IV.FDMO.HHZ. 2021-10-22T17:15:49.60 1.0 undecidable manual P 251 0.2185 125 -0.22 24
IV.MF5.EHZ. 2021-10-22T17:15:48.67 0.1 undecidable manual P 152 0.1385 140 -0.13 100
IV.CSP1.EHZ. 2021-10-22T17:15:48.37 1.0 negative manual P 262 0.1214 144 -0.25 24
IV.SAP2.EHZ. 2021-10-22T17:15:47.72 0.6 undecidable manual P 121 0.0252 172 -0.26 50
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SAP2.EHN. ML:2.2 0.0011525 1.38 AML other m 2021-10-22T17:15:50.89
IV.SAP2.EHE. ML:1.5 0.000265 0.16 AML other m 2021-10-22T17:15:51.30
IV.CSP1.EHN. ML:1.4 0.000151 0.16 AML other m 2021-10-22T17:15:52.35
IV.CSP1.EHE. ML:1.4 0.000175 1 AML other m 2021-10-22T17:15:52.26
IV.FDMO.HHE. ML:1.6 0.0001655 0.16 AML other m 2021-10-22T17:15:54.32
IV.FDMO.HHN. ML:1.3 8.86E-5 0.14 AML other m 2021-10-22T17:15:54.43
IV.MML1.EHN. ML:1 3.91E-5 0.14 AML other m 2021-10-22T17:15:56.60
IV.NRCA.HHN. ML:1.7 0.0001485 0.12 AML other m 2021-10-22T17:15:57.25
IV.NRCA.HHE. ML:2 0.0003155 0.14 AML other m 2021-10-22T17:15:57.24
IV.MML1.EHE. ML:0.8 2.425E-5 0.98 AML other m 2021-10-22T17:15:57.14
IV.TERO.HHN. ML:1 1.92E-5 1.5 AML other m 2021-10-22T17:16:03.84
IV.TERO.HHE. ML:1.3 4.685E-5 1.14 AML other m 2021-10-22T17:16:10.61
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