Earthquake with magnitude of ML 1.2 on date 31-10-2020 and time 16:51:42 (Italy) in region 3 km NE Sant'Angelo in Pontano (MC)

A magnitude ML 1.2 earthquake occured in region: 3 km NE Sant'Angelo in Pontano (MC), on

  • 31-10-2020 15:51:42 (UTC)
  • 31-10-2020 16:51:42 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.11, 13.42 at 25 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 4 3337 4773
Montappone FM 5 1682 6455
Monte Vidon Corrado FM 5 731 7186
Ripe San Ginesio MC 6 852 8038
Loro Piceno MC 6 2401 10439
Massa Fermana FM 6 963 11402
Penna San Giovanni MC 6 1108 12510
Servigliano FM 7 2336 14846
Colmurano MC 8 1263 16109
Gualdo MC 9 815 16924
San Ginesio MC 9 3498 20422
Monte San Martino MC 9 765 21187
Mogliano MC 9 4696 25883
Montegiorgio FM 10 6851 32734
Belmonte Piceno FM 10 646 33380
Urbisaglia MC 10 2628 36008
Monteleone di Fermo FM 11 395 36403
Monsampietro Morico FM 12 659 37062
Santa Vittoria in Matenano FM 12 1330 38392
Smerillo FM 12 365 38757
Petriolo MC 13 1998 40755
Francavilla d'Ete FM 13 964 41719
Camporotondo di Fiastrone MC 13 563 42282
Sarnano MC 13 3264 45546
Cessapalombo MC 13 512 46058
Magliano di Tenna FM 14 1452 47510
Montelparo FM 14 778 48288
Montottone FM 14 979 49267
Montefalcone Appennino FM 14 424 49691
Grottazzolina FM 14 3398 53089
Rapagnano FM 15 2145 55234
Monte San Pietrangeli FM 15 2458 57692
Tolentino MC 16 20069 77761
Amandola FM 16 3629 81390
Monte Rinaldo FM 16 379 81769
Belforte del Chienti MC 16 1886 83655
Caldarola MC 16 1823 85478
Corridonia MC 17 15430 100908
Torre San Patrizio FM 17 2048 102956
Monte Giberto FM 17 801 103757
Comunanza AP 17 3166 106923
Ortezzano FM 17 774 107697
Force AP 18 1354 109051
Monte Vidon Combatte FM 18 433 109484
Pollenza MC 18 6618 116102
Ponzano di Fermo FM 19 1674 117776
Monte San Giusto MC 20 8191 125967
Petritoli FM 20 2335 128302
Montefortino FM 20 1178 129480

Municipalities with at least 50000 inhabitants

An earthquake occurred to
55 Km NW of Teramo (54892 inhabitants)
57 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)
88 Km SE of Fano (60888 inhabitants)
88 Km NE of Terni (111501 inhabitants)
89 Km NW of Montesilvano (53738 inhabitants)
97 Km NW of Pescara (121014 inhabitants)
98 Km SE of Pesaro (94582 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled 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 1.2 2020-10-31
15:51:42
43.11 13.42 25 2020-10-31
16:54:25
Sala Sismica INGV-Roma 84326101
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-31 15:51:42 ± 0.16
Latitude 43.11 ± 0.00
Longitude 13.42 ± 0.01
Depth (km) 25 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 84326101

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 710
Semi-minor axis of confidence ellipse (meter) 266
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 62
Circular confidence region, given by single value of horizontal uncertainty (meter) 710
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 215
Number of associated phases, regardless of their use for origin computation 31
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.36063
Number of stations at which the event was observed 24
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.5
Num. used stations 8
Type of magnitude ML
Reference to an origin 84326101
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-31 16:54:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.RNCA.HHZ. 2020-10-31T15:53:23.31 3.0 undecidable manual Sn 6.46 0
IV.ERC.EHZ. 2020-10-31T15:53:10.06 3.0 undecidable manual Pg 18.01 0
IT.LNT.HGZ. 2020-10-31T15:53:05.58 3.0 undecidable manual Pn 1.48 0
GU.BHB.HHZ. 2020-10-31T15:53:00.60 3.0 positive manual Pn 8.19 0
IV.SGO.HHZ. 2020-10-31T15:52:53.58 3.0 undecidable manual Sn -2.41 0
GU.CARD.HHZ. 2020-10-31T15:52:46.25 3.0 undecidable manual Sn -1.77 0
IV.MBAL.EHZ. 2020-10-31T15:52:43.30 3.0 undecidable manual Pg 10.45 0
RD.PGF.BHZ. 2020-10-31T15:52:39.66 3.0 undecidable manual Pg 9.83 0
IV.TDS.HHZ. 2020-10-31T15:52:37.58 3.0 positive manual Pn -2.3 0
IV.AGLI.HHZ. 2020-10-31T15:52:36.35 3.0 undecidable manual Pn 2.12 0
IV.VAGA.HHZ. 2020-10-31T15:52:27.86 3.0 undecidable manual Sn -0.04 0
IV.IMOL.HNZ. 2020-10-31T15:52:15.76 3.0 negative manual Pg 2.97 0
IV.FOSV.EHZ. 2020-10-31T15:52:03.72 3.0 undecidable manual S -1.31 0
IV.NARO.HHZ. 2020-10-31T15:52:00.78 3.0 positive manual P 1.15 0
IV.EL6.EHZ. 2020-10-31T15:51:55.87 0.1 undecidable manual S 313 0.3193 119 0.26 93
IV.FDMO.HHZ. 2020-10-31T15:51:54.07 0.3 undecidable manual S 253 0.2581 126 -0.01 73
IV.MC2.EHE. 2020-10-31T15:51:54.51 0.3 undecidable manual S 221 0.2653 125 0.25 69
IV.MMO1.EHN. 2020-10-31T15:51:53.30 0.1 undecidable manual S 198 0.2257 130 -0.02 99
IV.MMO1.EHN. 2020-10-31T15:51:51.20 3.0 undecidable manual P 198 0.2257 130 2.39 0
IV.CSP1.EHN. 2020-10-31T15:51:51.83 0.3 undecidable manual S 262 0.1619 140 -0.16 72
IV.MF5.EHZ. 2020-10-31T15:51:51.58 0.1 undecidable manual S 168 0.1286 147 0.18 97
IV.ARRO.EHZ. 2020-10-31T15:51:50.94 3.0 undecidable manual P -0.53 0
IV.GUMA.HNE. 2020-10-31T15:51:50.57 0.3 undecidable manual S 232 0.0827 158 -0.2 73
IV.EL6.EHZ. 2020-10-31T15:51:50.19 0.1 undecidable manual P 313 0.3193 119 0.06 96
IV.NRCA.HHZ. 2020-10-31T15:51:50.78 0.3 undecidable manual P 219 0.3606 116 0.02 71
IV.FDMO.HHZ. 2020-10-31T15:51:49.10 0.1 undecidable manual P 253 0.2581 126 -0.15 95
IV.TERO.HHZ. 2020-10-31T15:51:49.76 3.0 undecidable manual P 0
IV.MC2.EHE. 2020-10-31T15:51:49.35 0.1 undecidable manual P 221 0.2653 125 0 98
IV.CSP1.EHN. 2020-10-31T15:51:47.81 0.3 undecidable manual P 262 0.1619 140 -0.23 71
IV.MF5.EHZ. 2020-10-31T15:51:47.74 0.1 undecidable manual P 168 0.1286 147 0.04 100
IV.GUMA.HNE. 2020-10-31T15:51:47.16 0.3 undecidable manual P 232 0.0827 158 -0.18 73
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:0.8 2.27E-5 0.22 AML other m 2020-10-31T15:51:54.30
IV.FDMO.HHN. ML:0.7 2.215E-5 0.74 AML other m 2020-10-31T15:51:54.90
IV.NRCA.HHN. ML:1.3 5.34E-5 1.28 AML other m 2020-10-31T15:51:57.78
IV.NRCA.HHE. ML:1.6 0.0001137 0.14 AML other m 2020-10-31T15:51:57.12
GU.CARD.HHN. ML:2.4 4.025E-5 0.56 AML other m 2020-10-31T15:52:49.08
GU.CARD.HHE. ML:2.5 6.04E-5 0.82 AML other m 2020-10-31T15:52:50.21
IV.MF5.EHE. ML:0.9 4.259457E-5 0.1792 AML other m 2020-10-31T15:51:51.68
IV.MF5.EHN. ML:1.2 7.767454E-5 0.1792 AML other m 2020-10-31T15:51:51.79
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download