Earthquake with magnitude of ML 1.7 on date 23-01-2021 and time 18:02:16 (UTC) in region 2 km E Urbisaglia (MC)

A magnitude ML 1.7 earthquake occured in region: 2 km E Urbisaglia (MC), on

  • 23-01-2021 18:02:16 (UTC)
  • 23-01-2021 19:02:16 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.19, 13.4 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
Urbisaglia MC 2 2628 2628
Loro Piceno MC 3 2401 5029
Colmurano MC 4 1263 6292
Ripe San Ginesio MC 6 852 7144
Petriolo MC 7 1998 9142
Mogliano MC 7 4696 13838
Massa Fermana FM 8 963 14801
Montappone FM 9 1682 16483
Tolentino MC 9 20069 36552
Pollenza MC 9 6618 43170
Sant'Angelo in Pontano MC 10 1436 44606
Monte Vidon Corrado FM 11 731 45337
Corridonia MC 11 15430 60767
San Ginesio MC 11 3498 64265
Falerone FM 11 3337 67602
Francavilla d'Ete FM 12 964 68566
Camporotondo di Fiastrone MC 12 563 69129
Macerata MC 13 42473 111602
Belforte del Chienti MC 13 1886 113488
Montegiorgio FM 13 6851 120339
Cessapalombo MC 14 512 120851
Gualdo MC 15 815 121666
Servigliano FM 15 2336 124002
Caldarola MC 15 1823 125825
Treia MC 15 9403 135228
Monte San Pietrangeli FM 15 2458 137686
Penna San Giovanni MC 15 1108 138794
Belmonte Piceno FM 16 646 139440
Rapagnano FM 16 2145 141585
Magliano di Tenna FM 17 1452 143037
Serrapetrona MC 17 966 144003
Monte San Giusto MC 17 8191 152194
Torre San Patrizio FM 17 2048 154242
Monte San Martino MC 18 765 155007
San Severino Marche MC 18 12726 167733
Monsampietro Morico FM 19 659 168392
Sarnano MC 19 3264 171656
Grottazzolina FM 19 3398 175054
Monteleone di Fermo FM 19 395 175449
Montecassiano MC 20 7125 182574
Appignano MC 20 4213 186787
Montegranaro FM 20 12990 199777

Municipalities with at least 50000 inhabitants

An earthquake occurred to
48 Km S of Ancona (100861 inhabitants)
62 Km E of Foligno (57155 inhabitants)
64 Km NW of Teramo (54892 inhabitants)
79 Km SE of Fano (60888 inhabitants)
82 Km E of Perugia (166134 inhabitants)
89 Km SE of Pesaro (94582 inhabitants)
93 Km NE of Terni (111501 inhabitants)
93 Km N of L'Aquila (69753 inhabitants)
97 Km NW of Montesilvano (53738 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 1.7 2021-01-23
18:02:16
43.19 13.4 22 2021-01-23
18:31:30
Sala Sismica INGV-Roma 86505141
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-23 18:02:16 ± 0.3
Latitude 43.19 ± 0.01
Longitude 13.40 ± 0.01
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 86505141

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1210
Semi-minor axis of confidence ellipse (meter) 259
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 109
Circular confidence region, given by single value of horizontal uncertainty (meter) 1210
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 170
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.41279
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.4
Num. used stations 6
Type of magnitude ML
Reference to an origin 86505141
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-01-23 18:31:30
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
AC.KBN.HHZ. 2021-01-23T18:04:00.33 3.0 negative manual Pg 17.309999 0
IV.MAGA.HHZ. 2021-01-23T18:03:59.28 3.0 undecidable manual Sg 19.629999 0
IV.MTGR.HHZ. 2021-01-23T18:03:38.84 3.0 undecidable manual Pn 6.04 0
IV.JOPP.HHZ. 2021-01-23T18:03:29.58 3.0 undecidable manual Pn 1.7 0
IV.VITU.HHZ. 2021-01-23T18:03:18.73 3.0 undecidable manual Sn 0.94 0
IT.FIE.HGZ. 2021-01-23T18:03:10.13 3.0 undecidable manual Sg 9 0
IV.FVI.HHZ. 2021-01-23T18:03:03.22 3.0 undecidable manual Pn -1.55 0
IV.NDIM.HNZ. 2021-01-23T18:03:00.17 3.0 negative manual Pg 8.36 0
IV.POFI.HNZ. 2021-01-23T18:02:58.85 3.0 undecidable manual Sn -1.53 0
IV.MTMR.EHZ. 2021-01-23T18:02:55.40 3.0 undecidable manual Pn 0.3 0
IV.LAV9.HNZ. 2021-01-23T18:02:43.80 3.0 undecidable manual Pn 2.11 0
IV.PE3.EHZ. 2021-01-23T18:02:41.19 3.0 undecidable manual S 0.53 0
IV.GAVE.EHZ. 2021-01-23T18:02:37.58 3.0 undecidable manual S -0.91 0
IV.NRCA.HHZ. 2021-01-23T18:02:31.62 0.3 undecidable manual S 210 0.4128 108 0.44 66
IV.FDMO.HHZ. 2021-01-23T18:02:27.41 0.3 undecidable manual S 235 0.2734 119 0.03 73
IV.CRTC.HHZ. 2021-01-23T18:02:26.28 3.0 undecidable manual P -0.9 0
IV.MNTT.EHZ. 2021-01-23T18:02:26.02 0.1 undecidable manual S 132 0.1952 130 0.56 88
IV.CING.HHE. 2021-01-23T18:02:26.57 0.1 undecidable manual S 322 0.2347 124 0.18 95
IV.CSP1.EHZ. 2021-01-23T18:02:24.92 0.1 undecidable manual S 234 0.1718 134 -0.01 100
IV.NRCA.HHZ. 2021-01-23T18:02:24.78 0.1 undecidable manual P 210 0.4128 108 0.01 95
IV.MMO1.EHZ. 2021-01-23T18:02:24.94 3.0 negative manual P 1.34 0
IV.SAP2.EHE. 2021-01-23T18:02:23.11 0.1 undecidable manual S 178 0.0953 151 -0.44 93
IV.FDMO.HHZ. 2021-01-23T18:02:22.48 0.1 undecidable manual P 235 0.2734 119 -0.09 96
IV.MNTT.EHZ. 2021-01-23T18:02:21.47 0.1 negative manual P 132 0.1952 130 0.01 99
IV.CING.HHE. 2021-01-23T18:02:21.99 0.1 undecidable manual P 322 0.2347 124 -0.01 99
IV.CSP1.EHZ. 2021-01-23T18:02:21.08 0.1 undecidable manual P 234 0.1718 134 -0.08 98
IV.SAP2.EHE. 2021-01-23T18:02:20.03 0.1 undecidable manual P 178 0.0953 151 -0.33 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MNTT.EHE. ML:2.6 0.00203 0.16 AML other m 2021-01-23T18:02:27.18
IV.MNTT.EHN. ML:2.2 0.0008895 0.18 AML other m 2021-01-23T18:02:27.18
IV.GAVE.EHN. ML:2.4 0.000364 0.86 AML other m 2021-01-23T18:02:39.97
IV.GAVE.EHE. ML:2.3 0.0003175381 3.2 AML other m 2021-01-23T18:02:40.23
IV.FDMO.HHE. ML:1.2 5.394725E-5 0.1536 AML other m 2021-01-23T18:02:27.83
IV.NRCA.HHE. ML:1.6 0.0001091157 3.5584 AML other m 2021-01-23T18:02:32.24
IV.NRCA.HHN. ML:1.3 5.4645015E-5 1.9584 AML other m 2021-01-23T18:02:32.54
IV.NRCA.HNE. ML:1.8 0.00017454125 4.4288 AML other m 2021-01-23T18:02:32.66
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