Earthquake with magnitude of ML 2.0 on date 31-12-2020 and time 20:02:18 (Italy) in region 4 km W Treia (MC)

A magnitude ML 2.0 earthquake occured in region: 4 km W Treia (MC), on

  • 31-12-2020 19:02:18 (UTC)
  • 31-12-2020 20:02:18 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.33, 13.27 at 23 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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
Treia MC 4 9403 9403
Cingoli MC 7 10352 19755
Appignano MC 8 4213 23968
Pollenza MC 9 6618 30586
San Severino Marche MC 13 12726 43312
Tolentino MC 13 20069 63381
Apiro MC 14 2280 65661
Staffolo AN 14 2253 67914
Filottrano AN 14 9499 77413
Montecassiano MC 14 7125 84538
Macerata MC 15 42473 127011
Poggio San Vicino MC 16 246 127257
San Paolo di Jesi AN 16 933 128190
Urbisaglia MC 17 2628 130818
Montefano MC 17 3541 134359
Serrapetrona MC 18 966 135325
Belforte del Chienti MC 18 1886 137211
Cupramontana AN 18 4756 141967
Gagliole MC 19 620 142587
Colmurano MC 19 1263 143850
Santa Maria Nuova AN 19 4179 148029
Petriolo MC 20 1998 150027

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km SW of Ancona (100861 inhabitants)
61 Km SE of Fano (60888 inhabitants)
62 Km NE of Foligno (57155 inhabitants)
71 Km SE of Pesaro (94582 inhabitants)
75 Km E of Perugia (166134 inhabitants)
82 Km NW of Teramo (54892 inhabitants)
99 Km NE of Terni (111501 inhabitants)
100 Km SE of Rimini (147750 inhabitants)
Recent and historical Seismicity

These maps show the seismicity for different time windows. The earthquake locations reported in these maps are determined in quasi real-time by the personnel on duty in the seismic surveillance center of INGV in Rome. Note that the earthquake source parameters (hypocentral location and magnitude) are the best estimates obstained with the available data and they are adjourned as additional data become available. The source parameters obtained by the personnel on duty are then revised by the group in charge of the INGV Seismic Bulletin (Bollettino Sismico Italiano dell’INGV).

Earthquakes of the last three days (72 hours)

Earthquakes of the last three days (72 hours) *

This map reports the earthquake epicenters located in the 72 hours (3 days) preceding the time of the current earthquake occurrence, using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radius of the circle representing the earthquake on the map scales with magnitude. The color depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours). The open star shows the epicenter of the current earthquake.
Earthquakes of the last 90 days

Earthquakes of the last 90 days *

This map reports the Magnitudo ≥ 1.0 earthquake epicenters located in the 90 days preceding the time of the current earthquake occurrence, using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Earthquakes since 1985

Earthquakes since 1985 *

This map reports the Magnitudo ≥ 2.5 earthquake epicenters located using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2014

Earthquakes since 1000 AD until 2014 *

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version https://emidius.mi.ingv.it/CPTI15-DBMI15/) with estimated magnitude ≥ 5.0 since 1000 AD until 2014. The epicenters are represented by squares which sides scale with the estimated earthquake magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The open star shows the epicenter of the current earthquake.
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
Bulletin
Rev1000
ML 2.0 2020-12-31
19:02:18
43.33 13.27 23 2021-02-26
14:56:18
Bollettino Sismico Italiano INGV 86884031
Reviewed
Rev100
ML 2.0 2020-12-31
19:02:18
43.33 13.29 10 2020-12-31
19:16:45
Sala Sismica INGV-Roma 85911431
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-12-31 19:02:18 ± 0.09
Latitude 43.33 ± 0.00
Longitude 13.27 ± 0.01
Depth (km) 23 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 86884031

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 520
Semi-minor axis of confidence ellipse (meter) 31
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 277
Circular confidence region, given by single value of horizontal uncertainty (meter) 520
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 38
Number of associated phases, regardless of their use for origin computation 69
Number of defining phases 69
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.36
Epicentral distance of station closest to the epicenter (degree) 0.03417
Epicentral distance of station farthest from the epicenter (degree) 0.94069
Number of stations at which the event was observed 40
Number of stations from which data was used for origin computation 40
Magnitudes information

ML:2

Field Value
Value 2
Uncertainty 0.3
Num. used stations 50
Type of magnitude ML
Reference to an origin 85911431
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-12-31 19:16:45

ML:2

Field Value
Value 2
Uncertainty 0.3
Num. used stations 50
Type of magnitude ML
Reference to an origin 86884031
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-02-25 17:12:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.GAVE.EHZ. 2020-12-31T19:02:42.70 0.6 undecidable manual S 204 0.6907 100 1 33
IV.PIEI.HHZ. 2020-12-31T19:02:38.99 0.6 undecidable manual S 292 0.5738 103 0.68 39
IV.ASSB.HHZ. 2020-12-31T19:02:37.86 0.6 undecidable manual S 238 0.5279 104 0.86 36
IV.MGAB.HHZ. 2020-12-31T19:02:36.39 0.6 undecidable manual P 244 0.9407 97 0.25 41
IV.FRON.EHZ. 2020-12-31T19:02:35.24 0.3 undecidable manual S 296 0.4398 107 0.76 58
IV.COR1.EHZ. 2020-12-31T19:02:34.28 0.3 undecidable manual S 327 0.3633 112 1.94 31
IV.MMO1.EHZ. 2020-12-31T19:02:34.49 0.6 undecidable manual S 175 0.4281 108 0.34 45
IV.MC2.EHZ. 2020-12-31T19:02:34.34 0.6 undecidable manual S 188 0.4182 108 0.47 44
IV.CESI.HHZ. 2020-12-31T19:02:34.56 0.6 undecidable manual S 220 0.4173 108 0.72 39
IV.SENI.HNN. 2020-12-31T19:02:34.10 0.6 undecidable manual S 356 0.3804 111 1.29 31
IV.ARRO.EHZ. 2020-12-31T19:02:34.08 0.3 undecidable manual P 207 0.8328 98 -0.23 64
IV.MNTT.EHZ. 2020-12-31T19:02:33.52 0.6 undecidable manual S 138 0.3543 112 1.43 29
IV.MF5.EHZ. 2020-12-31T19:02:33.32 0.6 undecidable manual S 158 0.3651 112 0.94 37
IV.FOSV.EHZ. 2020-12-31T19:02:33.06 0.6 undecidable manual S 265 0.3723 111 0.48 44
IV.TERO.HHZ. 2020-12-31T19:02:32.76 0.3 undecidable manual P 161 0.7437 99 -0.04 67
IV.PCRO.HNE. 2020-12-31T19:02:32.08 0.6 undecidable manual S 34 0.3399 113 0.38 46
IV.LNSS.HHZ. 2020-12-31T19:02:32.54 0.3 undecidable manual P 193 0.7419 99 -0.23 65
IV.MOMA.HHZ. 2020-12-31T19:02:32.35 0.3 undecidable manual P 225 0.7302 100 -0.23 65
IV.GAVE.EHZ. 2020-12-31T19:02:31.73 0.1 undecidable manual P 204 0.6907 100 -0.18 89
IV.FDMO.HHZ. 2020-12-31T19:02:31.15 0.6 undecidable manual S 205 0.3184 115 0.03 49
IV.CIMA.HNE. 2020-12-31T19:02:31.65 0.6 undecidable manual S 94 0.2914 118 1.25 33
IV.AOI.HHZ. 2020-12-31T19:02:31.11 0.6 undecidable manual S 47 0.3292 114 -0.29 46
IV.SMA1.EHZ. 2020-12-31T19:02:31.68 0.3 undecidable manual P 176 0.6961 100 -0.32 64
IV.PP3.HNN. 2020-12-31T19:02:30.03 0.6 undecidable manual S 78 0.2518 122 0.65 43
IV.SEF1.HNN. 2020-12-31T19:02:30.83 0.6 undecidable manual S 233 0.2959 117 0.32 46
IV.PIEI.HHZ. 2020-12-31T19:02:29.63 0.3 undecidable manual P 292 0.5738 103 -0.31 66
IV.OFFI.HHZ. 2020-12-31T19:02:29.42 0.3 undecidable manual P 142 0.4937 105 0.8 58
IV.MNTP.HNZ. 2020-12-31T19:02:29.65 0.3 undecidable manual S 142 0.2374 124 0.63 65
IV.SAP2.EHZ. 2020-12-31T19:02:29.93 0.3 undecidable manual S 158 0.2473 123 0.66 64
IV.SNTG.HHE. 2020-12-31T19:02:29.76 0.6 undecidable manual S 254 0.25 122 0.41 46
IV.MURB.HHZ. 2020-12-31T19:02:29.55 0.3 undecidable manual P 264 0.5468 103 0.05 70
IV.CRTC.HHZ. 2020-12-31T19:02:29.36 0.3 undecidable manual P 328 0.5243 104 0.24 68
IV.CSP1.EHZ. 2020-12-31T19:02:29.07 0.6 undecidable manual S 192 0.2383 124 0.01 50
IV.ASSB.HHZ. 2020-12-31T19:02:28.96 0.1 negative manual P 238 0.5279 104 -0.23 91
IV.NRCA.HHZ. 2020-12-31T19:02:28.37 0.3 undecidable manual P 193 0.5045 105 -0.44 65
IV.MPAG.EHZ. 2020-12-31T19:02:28.15 0.3 undecidable manual P 309 0.4793 106 -0.23 69
IV.MDAR.HNN. 2020-12-31T19:02:27.20 0.6 undecidable manual S 215 0.1628 136 -0.11 50
IV.PF6.EHN. 2020-12-31T19:02:27.84 0.6 undecidable manual S 197 0.1961 130 -0.2 49
IV.FRON.EHZ. 2020-12-31T19:02:27.59 0.3 undecidable manual P 296 0.4398 107 -0.14 71
IV.GAG1.HNE. 2020-12-31T19:02:27.55 0.6 undecidable manual S 239 0.1718 134 0.03 50
IV.MC2.EHZ. 2020-12-31T19:02:27.10 0.1 undecidable manual P 188 0.4182 108 -0.28 92
IV.CESI.HHZ. 2020-12-31T19:02:27.22 0.1 negative manual P 220 0.4173 108 -0.15 95
IV.MMO1.EHZ. 2020-12-31T19:02:27.11 0.3 undecidable manual P 175 0.4281 108 -0.43 66
IV.FOSV.EHZ. 2020-12-31T19:02:26.41 0.3 undecidable manual P 265 0.3723 111 -0.23 70
IV.EL6.EHZ. 2020-12-31T19:02:26.52 0.6 undecidable manual S 272 0.1232 145 -0.05 51
IV.MNTT.EHZ. 2020-12-31T19:02:26.48 0.1 positive manual P 138 0.3543 112 0.12 96
IV.COR1.EHZ. 2020-12-31T19:02:26.81 0.3 undecidable manual P 327 0.3633 112 0.31 69
IV.MF5.EHZ. 2020-12-31T19:02:26.59 0.1 positive manual P 158 0.3651 112 0.07 97
IV.SSM1.HNE. 2020-12-31T19:02:26.45 0.6 undecidable manual S 215 0.1187 146 -0.04 51
IV.SENI.HNN. 2020-12-31T19:02:26.72 0.6 undecidable manual P 356 0.3804 111 -0.05 48
IV.FDMO.HHZ. 2020-12-31T19:02:25.47 0.1 negative manual P 205 0.3184 115 -0.32 93
IV.CIMA.HNE. 2020-12-31T19:02:25.45 0.3 undecidable manual P 94 0.2914 118 0.08 74
IV.AOI.HHZ. 2020-12-31T19:02:25.14 0.1 undecidable manual P 47 0.3292 114 -0.81 77
IV.CING.HNZ. 2020-12-31T19:02:25.31 0.6 undecidable manual S 312 0.0737 157 -0.56 46
IV.PCRO.HNE. 2020-12-31T19:02:25.91 0.3 undecidable manual P 34 0.3399 113 -0.22 70
IV.SEF1.HNN. 2020-12-31T19:02:25.29 0.3 undecidable manual P 233 0.2959 117 -0.15 73
IV.SAP2.EHZ. 2020-12-31T19:02:24.71 0.1 undecidable manual P 158 0.2473 123 -0.01 100
IV.CSP1.EHZ. 2020-12-31T19:02:24.31 0.1 negative manual P 192 0.2383 124 -0.29 95
IV.TRE1.HNE. 2020-12-31T19:02:24.92 0.6 undecidable manual S 115 0.0342 169 -0.6 45
IV.SNTG.HHE. 2020-12-31T19:02:24.60 0.1 undecidable manual P 254 0.25 122 -0.17 97
IV.MNTP.HNZ. 2020-12-31T19:02:24.48 0.1 undecidable manual P 142 0.2374 124 -0.1 98
IV.PP3.HNN. 2020-12-31T19:02:24.62 0.3 undecidable manual P 78 0.2518 122 -0.17 72
IV.GAG1.HNE. 2020-12-31T19:02:23.53 0.3 undecidable manual P 239 0.1718 134 -0.18 74
IV.PF6.EHN. 2020-12-31T19:02:23.63 0.1 undecidable manual P 197 0.1961 130 -0.38 94
IV.MDAR.HNN. 2020-12-31T19:02:23.23 0.3 undecidable manual P 215 0.1628 136 -0.37 71
IV.SSM1.HNE. 2020-12-31T19:02:22.84 0.3 undecidable manual P 215 0.1187 146 -0.28 73
IV.EL6.EHZ. 2020-12-31T19:02:22.94 0.1 negative manual P 272 0.1232 145 -0.23 98
IV.CING.HNZ. 2020-12-31T19:02:22.29 0.3 undecidable manual P 312 0.0737 157 -0.47 70
IV.TRE1.HNE. 2020-12-31T19:02:21.97 0.3 undecidable manual P 115 0.0342 169 -0.59 68
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EL6.EHE. ML:2.3 0.001185 0.16 AML other m 2020-12-31T19:02:26.77
IV.EL6.EHN. ML:2.4 0.001375 0.18 AML other m 2020-12-31T19:02:27.25
IV.CSP1.EHE. ML:2.4 0.00118 0.5 AML other m 2020-12-31T19:02:29.58
IV.MNTP.HNE. ML:2.7 0.00198 0.18 AML other m 2020-12-31T19:02:29.96
IV.MNTP.HNN. ML:2.4 0.0011385 0.28 AML other m 2020-12-31T19:02:30.31
IV.SAP2.EHE. ML:2.3 0.0008445 0.6 AML other m 2020-12-31T19:02:30.77
IV.SAP2.EHN. ML:3 0.003785 0.14 AML other m 2020-12-31T19:02:30.64
IV.FDMO.HHE. ML:1.9 0.0002595 0.18 AML other m 2020-12-31T19:02:31.50
IV.FDMO.HHN. ML:1.8 0.0002 0.62 AML other m 2020-12-31T19:02:31.73
IV.CSP1.EHN. ML:2.4 0.0011 1.72 AML other m 2020-12-31T19:02:32.08
IV.AOI.HHE. ML:1.8 0.000195 0.42 AML other m 2020-12-31T19:02:32.34
IV.AOI.HHN. ML:1.8 0.0001955 0.84 AML other m 2020-12-31T19:02:32.26
IV.FOSV.EHN. ML:1.8 0.0001655 0.58 AML other m 2020-12-31T19:02:33.31
IV.MF5.EHE. ML:2.3 0.0006265 1.6 AML other m 2020-12-31T19:02:33.08
IV.MF5.EHN. ML:2.3 0.000692 1.72 AML other m 2020-12-31T19:02:33.90
IV.FOSV.EHE. ML:1.6 0.0001085 1.6 AML other m 2020-12-31T19:02:34.10
IV.CESI.HHN. ML:2.2 0.0004235 0.14 AML other m 2020-12-31T19:02:34.74
IV.CESI.HHE. ML:1.9 0.0002205 0.2 AML other m 2020-12-31T19:02:34.76
IV.MNTT.EHE. ML:2.3 0.000594 0.2 AML other m 2020-12-31T19:02:34.99
IV.MNTT.EHN. ML:2.4 0.000888 0.64 AML other m 2020-12-31T19:02:35.41
IV.FRON.EHN. ML:1.8 0.0001355 1.08 AML other m 2020-12-31T19:02:35.62
IV.FRON.EHE. ML:1.6 0.0001002 0.46 AML other m 2020-12-31T19:02:35.53
IV.NRCA.HHE. ML:2.2 0.000314 1.56 AML other m 2020-12-31T19:02:37.97
IV.ASSB.HHE. ML:1.6 8.62E-5 0.2 AML other m 2020-12-31T19:02:38.53
IV.MURB.HNE. ML:2.2 0.0003357 0.54 AML other m 2020-12-31T19:02:39.28
IV.NRCA.HHN. ML:2 0.000222 0.14 AML other m 2020-12-31T19:02:39.36
IV.ASSB.HHN. ML:1.8 0.00011095 0.76 AML other m 2020-12-31T19:02:39.45
IV.MPAG.EHE. ML:1.4 4.87E-5 0.64 AML other m 2020-12-31T19:02:39.86
IV.MPAG.EHN. ML:1.4 5.74E-5 0.42 AML other m 2020-12-31T19:02:39.63
IV.PIEI.HHE. ML:1.7 8.87E-5 0.18 AML other m 2020-12-31T19:02:40.72
IV.MURB.HHE. ML:2.3 0.0003375 0.3 AML other m 2020-12-31T19:02:41.26
IV.OFFI.HHE. ML:2.1 0.0002445 0.54 AML other m 2020-12-31T19:02:41.42
IV.MURB.HNN. ML:2.2 0.0002665 0.22 AML other m 2020-12-31T19:02:42.12
IV.MURB.HHN. ML:2.2 0.0002995 0.24 AML other m 2020-12-31T19:02:42.12
IV.GAVE.EHE. ML:2.5 0.0004095 1.74 AML other m 2020-12-31T19:02:42.04
IV.GAVE.EHN. ML:2.2 0.000246 0.26 AML other m 2020-12-31T19:02:43.06
IV.PIEI.HHN. ML:1.5 5.49E-5 0.2 AML other m 2020-12-31T19:02:43.25
IV.OFFI.HHN. ML:2.1 0.000246 0.58 AML other m 2020-12-31T19:02:44.41
IV.CRTC.HHN. ML:1.8 0.0001425 1.48 AML other m 2020-12-31T19:02:44.98
IV.CRTC.HHE. ML:1.8 0.000124 0.72 AML other m 2020-12-31T19:02:44.98
IV.LNSS.HHN. ML:2.1 0.000148 0.86 AML other m 2020-12-31T19:02:45.01
IV.SMA1.EHE. ML:2 0.000156 0.46 AML other m 2020-12-31T19:02:45.81
IV.MOMA.HHN. ML:1.7 6.83E-5 0.46 AML other m 2020-12-31T19:02:45.74
IV.SMA1.EHN. ML:2.1 0.0001725 0.28 AML other m 2020-12-31T19:02:45.60
IV.MOMA.HHE. ML:1.8 8.45E-5 0.2 AML other m 2020-12-31T19:02:45.65
IV.TERO.HHN. ML:2 0.0001195 0.54 AML other m 2020-12-31T19:02:46.42
IV.TERO.HHE. ML:1.8 7.44E-5 0.58 AML other m 2020-12-31T19:02:46.59
IV.ARRO.EHE. ML:1.8 6.835E-5 0.32 AML other m 2020-12-31T19:02:47.36
IV.LNSS.HHE. ML:1.8 8.425E-5 1.36 AML other m 2020-12-31T19:02:48.94
IV.ARRO.EHN. ML:1.6 4.74E-5 1.22 AML other m 2020-12-31T19:02:54.17
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Focal Mechanisms

Focal Mechanisms *

This map reports the focal mechanisms since 1977 in the region. The white and red beach ball symbols are mechanisms determined using the Regional Centroid Moment Tensor (RCMT, http://www.bo.ingv.it/RCMT) and are determined for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when there is a good source-receiver geometry of the target earthquake, the RCMT can be obtained also for earthquakes with magnitude larger than 4.0. The blue and white beach ball symbols indicate the mechanisms obtained from application of the Time Domain Moment Tensor (TDMT, http://terremoti.ingv.it/tdmt.html). This technique is used for M ≥ 3.5. The size of the beach ball sysmbol scales with the calculated moment magnitude, Mw.
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
Waveforms Seismic signals in full SEED format Download