Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.6 on date 16-04-2021 and time 04:17:14 (Italy) in region 3 km SW Mercatello sul Metauro (PU)

A magnitude ML 0.6 earthquake occured in region: 3 km SW Mercatello sul Metauro (PU), on

  • 16-04-2021 02:17:14 (UTC)
  • 16-04-2021 04:17:14 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.6240, 12.3160 at 8 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Mercatello sul Metauro PU 3 1378 1378
Borgo Pace PU 4 606 1984
Sant'Angelo in Vado PU 9 4133 6117
Sestino AR 10 1355 7472
Apecchio PU 11 1882 9354
Belforte all'Isauro PU 12 769 10123
Piandimeleto PU 14 2167 12290
San Giustino PG 14 11297 23587
Badia Tedalda AR 14 1087 24674
Sansepolcro AR 15 15884 40558
Lunano PU 16 1527 42085
Piobbico PU 16 2029 44114
Frontino PU 17 293 44407
Peglio PU 17 696 45103
Urbania PU 18 7099 52202
Carpegna PU 18 1674 53876
Città di Castello PG 20 39913 93789

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km E of Arezzo (99543 inhabitants)
53 Km SW of Rimini (147750 inhabitants)
57 Km S of Cesena (96758 inhabitants)
58 Km SW of Pesaro (94582 inhabitants)
58 Km N of Perugia (166134 inhabitants)
62 Km W of Fano (60888 inhabitants)
70 Km SE of Forlì (117913 inhabitants)
81 Km NW of Foligno (57155 inhabitants)
81 Km SE of Faenza (58541 inhabitants)
86 Km E of Siena (53903 inhabitants)
87 Km E of Firenze (382808 inhabitants)
89 Km S of Ravenna (159116 inhabitants)
92 Km E of Scandicci (50609 inhabitants)
94 Km SE of Imola (69797 inhabitants)
97 Km W of Ancona (100861 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000 		ML 0.6 2021-04-16
02:17:14		 43.6242 12.3163 8 2021-07-12
16:55:07		 Bollettino Sismico Italiano INGV 89317511
Reviewed
Rev100 		ML 0.5 2021-04-16
02:17:14		 43.6242 12.3163 8 2021-04-16
02:30:19		 Sala Sismica INGV-Roma 89132011
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-04-16 02:17:14 ± 0.23
Latitude 43.6242 ± 0.0045
Longitude 12.3163 ± 0.0062
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 89317511

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 475
Semi-minor axis of confidence ellipse (meter) 293
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 162
Circular confidence region, given by single value of horizontal uncertainty (meter) 480.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 127
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.06115
Epicentral distance of station farthest from the epicenter (degree) 0.19156
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitudes information

ML:0.5

Field Value
Value 0.5
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 89132011
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-04-16 02:30:19

ML:0.6

Field Value
Value 0.6
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 89317511
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-04-21 05:13:47
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ATPI.EHZ. 2021-04-16T02:17:22.14 0.1 undecidable manual S 160 20.4684 112 0.05 97
IV.NARO.HHZ. 2021-04-16T02:17:21.98 0.1 undecidable manual S 94 21.2676 111 -0.38 91
IV.PE3.EHZ. 2021-04-16T02:17:21.30 0.1 undecidable manual S 61 16.4724 117 0.46 90
IV.BADI.EHZ. 2021-04-16T02:17:20.20 0.1 undecidable manual S 205 13.9749 121 0.13 97
IV.APEC.HNZ. 2021-04-16T02:17:19.20 0.3 undecidable manual S 131 11.0778 127 -0.03 75
IV.ATPI.EHZ. 2021-04-16T02:17:18.84 0.3 undecidable manual P 160 20.4684 112 -0.02 74
IV.PIEI.HHZ. 2021-04-16T02:17:18.73 0.3 undecidable manual P 119 20.1687 112 -0.07 73
IV.NARO.HHZ. 2021-04-16T02:17:18.78 0.1 undecidable manual P 94 21.2676 111 -0.23 94
IV.PE3.EHZ. 2021-04-16T02:17:18.23 0.1 undecidable manual P 61 16.4724 117 0.09 97
IV.APEC.HNZ. 2021-04-16T02:17:17.36 0.3 undecidable manual P 131 11.0778 127 0.16 73
IV.BADI.EHZ. 2021-04-16T02:17:17.76 0.1 undecidable manual P 205 13.9749 121 0.07 98
IV.PARC.HHZ. 2021-04-16T02:17:17.97 0.1 undecidable manual S 294 6.7932 140 -0.19 97
IV.PARC.HHZ. 2021-04-16T02:17:16.55 0.1 undecidable manual P 294 6.7932 140 -0.04 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PARC.HHE. ML:0.4 0.000048852935 0.2608 AML other m 2021-04-16T02:17:18.04
IV.PARC.HHN. ML:0.4 0.000046261965 0.1008 AML other m 2021-04-16T02:17:18.04
IV.BADI.EHN. ML:0.7 0.0000543 0.32 AML other m 2021-04-16T02:17:20.33
IV.BADI.EHE. ML:0.7 0.000051750000000000004 0.7 AML other m 2021-04-16T02:17:21.43
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