Earthquake with magnitude of ML 0.8 on date 29-02-2020 and time 09:21:04 (Italy) in region 4 km SW Apecchio (PU)

A magnitude ML 0.8 earthquake occured in region: 4 km SW Apecchio (PU), on

  • 29-02-2020 08:21:04 (UTC)
  • 29-02-2020 09:21:04 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.5260, 12.3980 at 7 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
Apecchio PU 4 1882 1882
Pietralunga PG 10 2111 3993
Piobbico PU 12 2029 6022
Mercatello sul Metauro PU 15 1378 7400
CittĂ  di Castello PG 15 39913 47313
Sant'Angelo in Vado PU 16 4133 51446
Borgo Pace PU 17 606 52052
San Giustino PG 18 11297 63349
Montone PG 19 1680 65029
Urbania PU 19 7099 72128
Cantiano PU 19 2245 74373

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km E of Arezzo (99543 inhabitants)
47 Km N of Perugia (166134 inhabitants)
60 Km SW of Pesaro (94582 inhabitants)
61 Km S of Rimini (147750 inhabitants)
61 Km SW of Fano (60888 inhabitants)
68 Km NW of Foligno (57155 inhabitants)
69 Km S of Cesena (96758 inhabitants)
83 Km SE of Forlì (117913 inhabitants)
89 Km E of Siena (53903 inhabitants)
91 Km W of Ancona (100861 inhabitants)
94 Km SE of Faenza (58541 inhabitants)
96 Km E of Firenze (382808 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 0.8 2020-02-29
08:21:04
43.5257 12.3978 7 2020-07-18
21:08:27
Bollettino Sismico Italiano INGV 77504041
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-02-29 08:21:04 ± 0.09
Latitude 43.5257 ± 0.0018
Longitude 12.3978 ± 0.0025
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 77504041

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 240
Semi-minor axis of confidence ellipse (meter) 20
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 331
Circular confidence region, given by single value of horizontal uncertainty (meter) 240.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 69
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 22
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.23742
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 12
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 77504041
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-03-23 14:50:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FRON.EHZ. 2020-02-29T08:21:14.25 0.3 undecidable manual S 92 26.3514 105 0.01 73
IV.ATLO.EHE. 2020-02-29T08:21:13.18 0.3 undecidable manual S 178 23.3544 107 -0.06 72
IV.PARC.HHZ. 2020-02-29T08:21:12.16 0.3 undecidable manual S 317 18.6702 111 0.45 67
IV.NARO.HHZ. 2020-02-29T08:21:11.45 0.1 undecidable manual S 57 17.4714 113 0.14 96
IV.ATMC.EHE. 2020-02-29T08:21:11.44 0.3 undecidable manual S 242 18.6702 111 -0.26 70
IV.ATVO.HHZ. 2020-02-29T08:21:10.96 0.1 undecidable manual S 177 15.9729 115 0.13 96
IV.ATLO.EHE. 2020-02-29T08:21:09.58 0.3 undecidable manual P 178 23.3544 107 -0.07 72
IV.PE3.EHZ. 2020-02-29T08:21:09.26 3.0 positive manual P 0.2 0
IV.BADI.EHZ. 2020-02-29T08:21:09.79 0.1 undecidable manual S 262 12.4764 120 0.03 99
IV.FRON.EHZ. 2020-02-29T08:21:09.89 0.3 undecidable manual P 92 26.3514 105 -0.34 68
IV.TB01.DHZ.01 2020-02-29T08:21:08.27 0.1 undecidable manual P 169 16.2726 114 -0.05 98
IV.ATVO.HHZ. 2020-02-29T08:21:08.27 0.1 positive manual P 177 15.9729 115 0.01 98
IV.ATPI.EHZ. 2020-02-29T08:21:08.72 0.1 undecidable manual S 178 8.2806 131 0.13 97
IV.ATBU.EHZ. 2020-02-29T08:21:08.04 0.3 undecidable manual P 115 13.2756 119 0.25 71
IV.NARO.HHZ. 2020-02-29T08:21:08.49 0.1 positive manual P 57 17.4714 113 -0.04 98
IV.ATMC.EHE. 2020-02-29T08:21:08.67 0.1 undecidable manual P 242 18.6702 111 -0.09 96
IV.PARC.HHZ. 2020-02-29T08:21:08.74 0.1 undecidable manual P 317 18.6702 111 -0.02 98
IV.ATPC.HHE. 2020-02-29T08:21:08.31 0.1 undecidable manual S 136 6.8931 137 0.08 99
IV.BADI.EHZ. 2020-02-29T08:21:07.67 0.1 positive manual P 262 12.4764 120 0.03 99
IV.APEC.HHZ. 2020-02-29T08:21:07.35 0.1 undecidable manual S 26 3.996 151 -0.29 95
IV.ATPC.HHE. 2020-02-29T08:21:06.79 0.1 negative manual P 136 6.8931 137 0.03 100
IV.APEC.HHZ. 2020-02-29T08:21:06.33 0.1 positive manual P 26 3.996 151 -0.09 99
IV.ATPI.EHZ. 2020-02-29T08:21:06.96 0.1 positive manual P 178 8.2806 131 0 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATPI.EHN. ML:0.6 0.0000727 0.38 AML other m 2020-02-29T08:21:09.28
IV.BADI.EHE. ML:1.4 0.0003045 0.08 AML other m 2020-02-29T08:21:10.03
IV.BADI.EHN. ML:1.2 0.0001835 0.34 AML other m 2020-02-29T08:21:10.09
IV.ATPI.EHE. ML:0.6 0.00006135 0.98 AML other m 2020-02-29T08:21:11.34
IV.NARO.HHE. ML:0.5 0.000032500000000000004 1.04 AML other m 2020-02-29T08:21:11.62
IV.NARO.HHN. ML:0.7 0.000047149999999999994 0.42 AML other m 2020-02-29T08:21:12.69
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