Earthquake with magnitude of ML 1.1 on date 16-10-2021 and time 03:33:18 (UTC) in region 3 km NE Sant'Angelo in Pontano (MC)

A magnitude ML 1.1 earthquake occured in region: 3 km NE Sant'Angelo in Pontano (MC), on

  • 16-10-2021 03:33:18 (UTC)
  • 16-10-2021 05:33:18 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.118, 13.417 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 3 1436 1436
Falerone FM 5 3337 4773
Montappone FM 5 1682 6455
Ripe San Ginesio MC 5 852 7307
Loro Piceno MC 6 2401 9708
Monte Vidon Corrado FM 6 731 10439
Massa Fermana FM 6 963 11402
Penna San Giovanni MC 7 1108 12510
Colmurano MC 7 1263 13773
Servigliano FM 7 2336 16109
San Ginesio MC 8 3498 19607
Gualdo MC 8 815 20422
Mogliano MC 9 4696 25118
Urbisaglia MC 10 2628 27746
Monte San Martino MC 10 765 28511
Montegiorgio FM 10 6851 35362
Belmonte Piceno FM 10 646 36008
Monteleone di Fermo FM 12 395 36403
Petriolo MC 12 1998 38401
Camporotondo di Fiastrone MC 12 563 38964
Santa Vittoria in Matenano FM 13 1330 40294
Monsampietro Morico FM 13 659 40953
Smerillo FM 13 365 41318
Cessapalombo MC 13 512 41830
Sarnano MC 13 3264 45094
Francavilla d'Ete FM 13 964 46058
Magliano di Tenna FM 14 1452 47510
Montelparo FM 15 778 48288
Montefalcone Appennino FM 15 424 48712
Tolentino MC 15 20069 68781
Montottone FM 15 979 69760
Grottazzolina FM 15 3398 73158
Rapagnano FM 15 2145 75303
Belforte del Chienti MC 15 1886 77189
Monte San Pietrangeli FM 16 2458 79647
Caldarola MC 16 1823 81470
Amandola FM 16 3629 85099
Corridonia MC 16 15430 100529
Monte Rinaldo FM 17 379 100908
Torre San Patrizio FM 17 2048 102956
Pollenza MC 18 6618 109574
Comunanza AP 18 3166 112740
Monte Giberto FM 18 801 113541
Force AP 18 1354 114895
Ortezzano FM 18 774 115669
Monte Vidon Combatte FM 19 433 116102
Monte San Giusto MC 20 8191 124293
Serrapetrona MC 20 966 125259
Ponzano di Fermo FM 20 1674 126933

Municipalities with at least 50000 inhabitants

An earthquake occurred to
56 Km NW of Teramo (54892 inhabitants)
56 Km S of Ancona (100861 inhabitants)
61 Km E of Foligno (57155 inhabitants)
84 Km E of Perugia (166134 inhabitants)
85 Km N of L'Aquila (69753 inhabitants)
87 Km SE of Fano (60888 inhabitants)
88 Km NE of Terni (111501 inhabitants)
90 Km NW of Montesilvano (53738 inhabitants)
97 Km SE of Pesaro (94582 inhabitants)
97 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 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 1.1 2021-10-16
03:33:18
43.118 13.4172 22 2021-10-16
03:55:01
Sala Sismica INGV-Roma 96633831
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-16 03:33:18 ± 0.3
Latitude 43.1180 ± 0.0099
Longitude 13.4172 ± 0.0136
Depth (km) 22 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 96633831

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1084
Semi-minor axis of confidence ellipse (meter) 645
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 220
Circular confidence region, given by single value of horizontal uncertainty (meter) 1080
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 110
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.37
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.37322
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 96633831
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-16 03:55:01
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.HAGA.HHZ. 2021-10-16T03:35:01.67 3.0 undecidable manual Pg 13.61 0
IV.CADC.EHZ. 2021-10-16T03:34:50.80 3.0 undecidable manual Sn -0.79 0
MN.VAE.HHZ. 2021-10-16T03:34:49.11 3.0 undecidable manual Pn 5.03 0
IV.ZEN8.EHZ. 2021-10-16T03:34:20.65 3.0 undecidable manual Pg 11.46 0
IV.CERA.HNZ. 2021-10-16T03:34:09.52 3.0 undecidable manual Sg -0.24 0
IV.ARCI.HHZ. 2021-10-16T03:33:46.46 3.0 undecidable manual Pg 0.83 0
IV.EL6.EHN. 2021-10-16T03:33:31.21 0.1 undecidable manual S 313 0.3121 115 0.15 94
IV.FDMO.HHZ. 2021-10-16T03:33:29.74 0.1 undecidable manual S 251 0.2545 121 0.2 93
IV.MMO1.EHE. 2021-10-16T03:33:29.09 0.1 undecidable manual S 197 0.2284 125 0.19 94
IV.CSP1.EHZ. 2021-10-16T03:33:27.23 0.1 undecidable manual S 260 0.1574 137 -0.06 99
IV.MNTT.EHZ. 2021-10-16T03:33:27.59 0.1 undecidable manual S 113 0.1421 140 0.6 89
IV.MF5.EHZ. 2021-10-16T03:33:27.26 0.3 undecidable manual S 167 0.134 142 0.42 69
IV.EL6.EHN. 2021-10-16T03:33:26.74 0.1 undecidable manual P 313 0.3121 115 0.93 73
IV.SNTG.HNE. 2021-10-16T03:33:26.64 0.3 undecidable manual P 292 0.3732 111 -0.14 70
IV.GUMA.HNZ. 2021-10-16T03:33:26.08 0.1 undecidable manual S 227 0.0818 155 0.05 100
IV.MNTP.HNZ. 2021-10-16T03:33:25.27 0.1 undecidable manual S 63 0.0423 166 -0.38 93
IV.FDMO.HHZ. 2021-10-16T03:33:24.67 0.1 undecidable manual P 251 0.2545 121 -0.27 93
IV.MMO1.EHE. 2021-10-16T03:33:24.35 0.1 undecidable manual P 197 0.2284 125 -0.22 95
IV.MF5.EHZ. 2021-10-16T03:33:23.28 0.3 undecidable manual P 167 0.134 142 -0.1 74
IV.CSP1.EHZ. 2021-10-16T03:33:23.29 0.1 undecidable manual P 260 0.1574 137 -0.35 93
IV.MNTT.EHZ. 2021-10-16T03:33:23.41 0.1 undecidable manual P 113 0.1421 140 -0.06 98
IV.MNTP.HNZ. 2021-10-16T03:33:22.26 0.1 undecidable manual P 63 0.0423 166 -0.43 92
IV.GUMA.HNZ. 2021-10-16T03:33:22.61 0.1 undecidable manual P 227 0.0818 155 -0.3 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MNTT.EHE. ML:1.4 0.00013019205 0.9808 AML other m 2021-10-16T03:33:27.80
IV.MNTT.EHN. ML:1.3 0.000114180335 2.08 AML other m 2021-10-16T03:33:28.42
IV.FDMO.HHE. ML:0.9 2.9633865E-5 0.8992 AML other m 2021-10-16T03:33:30.47
IV.FDMO.HHN. ML:0.8 2.6165375E-5 0.92 AML other m 2021-10-16T03:33:30.25
IV.ARCI.HHE. ML:2 4.0982095E-5 0.2016 AML other m 2021-10-16T03:33:47.43
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