Earthquake with magnitude of ML 1.3 on date 04-03-2021 and time 11:35:15 (Italy) in region 6 km NW Tolentino (MC)

A magnitude ML 1.3 earthquake occured in region: 6 km NW Tolentino (MC), on

  • 04-03-2021 10:35:15 (UTC)
  • 04-03-2021 11:35:15 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.26, 13.26 at 10 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
Tolentino MC 6 20069 20069
San Severino Marche MC 7 12726 32795
Pollenza MC 7 6618 39413
Treia MC 7 9403 48816
Belforte del Chienti MC 11 1886 50702
Serrapetrona MC 11 966 51668
Urbisaglia MC 12 2628 54296
Colmurano MC 13 1263 55559
Cingoli MC 13 10352 65911
Caldarola MC 14 1823 67734
Appignano MC 14 4213 71947
Camporotondo di Fiastrone MC 14 563 72510
Gagliole MC 16 620 73130
Ripe San Ginesio MC 16 852 73982
Macerata MC 17 42473 116455
Loro Piceno MC 17 2401 118856
Cessapalombo MC 17 512 119368
Castelraimondo MC 17 4587 123955
San Ginesio MC 17 3498 127453
Petriolo MC 17 1998 129451
Apiro MC 18 2280 131731
Montecassiano MC 19 7125 138856
Poggio San Vicino MC 19 246 139102
Mogliano MC 20 4696 143798

Municipalities with at least 50000 inhabitants

An earthquake occurred to
45 Km SW of Ancona (100861 inhabitants)
56 Km NE of Foligno (57155 inhabitants)
68 Km S of Fano (60888 inhabitants)
73 Km E of Perugia (166134 inhabitants)
76 Km NW of Teramo (54892 inhabitants)
78 Km SE of Pesaro (94582 inhabitants)
92 Km NE of Terni (111501 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 1.3 2021-03-04
10:35:15
43.26 13.26 10 2021-03-04
10:39:19
Sala Sismica INGV-Roma 87708411
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-03-04 10:35:15 ± 0.29
Latitude 43.26 ± 0.01
Longitude 13.26 ± 0.03
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 87708411

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2582
Semi-minor axis of confidence ellipse (meter) 787
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 242
Circular confidence region, given by single value of horizontal uncertainty (meter) 2580
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 11
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.41
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.35163
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 87708411
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-03-04 10:39:19
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MF5.EHZ. 2021-03-04T10:35:28.42 0.3 undecidable manual S 152 0.3085 50 0.97 54
IV.MC2.EHZ. 2021-03-04T10:35:28.99 0.3 undecidable manual S 188 0.3516 50 0.27 69
IV.GUMA.HHZ. 2021-03-04T10:35:24.63 0.3 undecidable manual S 164 0.2041 114 0.35 69
IV.CSP1.EHZ. 2021-03-04T10:35:23.15 0.3 undecidable manual S 193 0.1718 118 0 75
IV.MMO1.EHZ. 2021-03-04T10:35:22.82 0.6 positive manual P -0.21 0.67
IV.EL6.EHZ. 2021-03-04T10:35:22.28 0.3 undecidable manual S 302 0.134 124 0.39 70
IV.MF5.EHZ. 2021-03-04T10:35:22.30 0.1 undecidable manual P 152 0.3085 50 -0.16 94
IV.MC2.EHZ. 2021-03-04T10:35:22.71 0.1 undecidable manual P 188 0.3516 50 -0.48 87
IV.GUMA.HHZ. 2021-03-04T10:35:20.40 0.1 negative manual P 164 0.2041 114 -0.23 95
IV.CSP1.EHZ. 2021-03-04T10:35:19.73 0.1 undecidable manual P 193 0.1718 118 -0.25 95
IV.EL6.EHZ. 2021-03-04T10:35:19.30 0.1 undecidable manual P 302 0.134 124 0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EL6.EHN. ML:1.2 0.0001455 0.38 AML other m 2021-03-04T10:35:22.66
IV.EL6.EHE. ML:1.2 0.0001565 0.34 AML other m 2021-03-04T10:35:22.53
IV.CSP1.EHE. ML:1.4 0.0001935 0.48 AML other m 2021-03-04T10:35:23.57
IV.CSP1.EHN. ML:1.4 0.000191 0.2 AML other m 2021-03-04T10:35:24.75
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