Earthquake with magnitude of ML 0.4 on date 31-07-2017 and time 04:29:47 (Italy) in region 4 km SW Caldarola (MC)

A magnitude ML 0.4 earthquake occured in region: 4 km SW Caldarola (MC), on

  • 31-07-2017 02:29:47 (UTC)
  • 31-07-2017 04:29:47 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.1180, 13.1820 at 2 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
Caldarola MC 4 1823 1823
Cessapalombo MC 6 512 2335
Serrapetrona MC 7 966 3301
Camporotondo di Fiastrone MC 7 563 3864
Belforte del Chienti MC 7 1886 5750
Fiastra MC 9 559 6309
Camerino MC 10 6974 13283
Acquacanina MC 10 121 13404
Pievebovigliana MC 10 866 14270
San Ginesio MC 11 3498 17768
Fiordimonte MC 12 202 17970
Muccia MC 12 915 18885
San Severino Marche MC 13 12726 31611
Tolentino MC 13 20069 51680
Sarnano MC 13 3264 54944
Pieve Torina MC 13 1458 56402
Gualdo MC 14 815 57217
Bolognola MC 14 142 57359
Castelraimondo MC 14 4587 61946
Colmurano MC 15 1263 63209
Ripe San Ginesio MC 15 852 64061
Gagliole MC 17 620 64681
Pioraco MC 17 1134 65815
Sant'Angelo in Pontano MC 18 1436 67251
Urbisaglia MC 18 2628 69879
Sefro MC 19 422 70301
Serravalle di Chienti MC 19 1070 71371
Ussita MC 20 444 71815
Loro Piceno MC 20 2401 74216

Municipalities with at least 50000 inhabitants

An earthquake occurred to
43 Km E of Foligno (57155 inhabitants)
62 Km SW of Ancona (100861 inhabitants)
64 Km E of Perugia (166134 inhabitants)
66 Km NW of Teramo (54892 inhabitants)
76 Km NE of Terni (111501 inhabitants)
82 Km S of Fano (60888 inhabitants)
87 Km N of L'Aquila (69753 inhabitants)
91 Km S of Pesaro (94582 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
Reviewed
Rev100
ML 0.4 2017-07-31
02:29:47
43.1177 13.1825 2 2017-07-31
02:37:01
Sala Sismica INGV-Roma 48525001
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-07-31 02:29:47 ± 0.11
Latitude 43.1177 ± 0.0036
Longitude 13.1825 ± 0.0049
Depth (km) 2 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 48525001

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 380
Semi-minor axis of confidence ellipse (meter) 234
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 244
Circular confidence region, given by single value of horizontal uncertainty (meter) 380.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 114
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) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.03058
Epicentral distance of station farthest from the epicenter (degree) 0.25811
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.4

Field Value
Value 0.4
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 48525001
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-07-31 02:37:01
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CING.HHZ. 2017-07-31T02:29:57.19 0.3 undecidable manual S 2 28.6491 94 0.08 71
IV.T1219.EHZ. 2017-07-31T02:29:52.99 0.3 undecidable manual S 245 15.9729 97 0.26 70
IV.GUMA.HNN. 2017-07-31T02:29:52.40 0.1 undecidable manual S 116 13.7751 98 0.41 91
IV.CING.HHZ. 2017-07-31T02:29:52.62 0.6 positive manual P 2 28.6491 94 -0.28 46
IV.T1256.HHZ. 2017-07-31T02:29:51.42 0.3 undecidable manual S 164 12.876 99 -0.25 71
IV.EL6.EHZ. 2017-07-31T02:29:51.96 1.0 undecidable manual P 344 24.3534 95 -0.09 24
IV.FDMO.HHZ. 2017-07-31T02:29:51.44 0.1 undecidable manual S 221 11.877 100 0.11 97
IV.T1219.EHZ. 2017-07-31T02:29:50.28 1.0 positive manual P 245 15.9729 97 -0.09 24
IV.T1256.HHZ. 2017-07-31T02:29:49.42 0.6 negative manual P 164 12.876 99 -0.34 46
IV.FDMO.HHZ. 2017-07-31T02:29:49.48 0.3 positive manual P 221 11.877 100 -0.08 73
IV.GUMA.HNN. 2017-07-31T02:29:49.89 0.1 undecidable manual P 116 13.7751 98 -0.05 98
IV.CSP1.EHZ. 2017-07-31T02:29:48.48 0.1 undecidable manual S 148 3.3966 121 -0.05 100
IV.CSP1.EHZ. 2017-07-31T02:29:47.89 0.1 undecidable manual P 148 3.3966 121 -0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:0.5 0.000052199999999999995 0.18 AML other m 2017-07-31T02:29:51.55
IV.FDMO.HHN. ML:0.3 0.00002855 0.58 AML other m 2017-07-31T02:29:51.51
IV.T1256.HHN. ML:0.3 0.000028049999999999997 1 AML other m 2017-07-31T02:29:52.55
IV.T1256.HHE. ML:0.3 0.0000307 0.84 AML other m 2017-07-31T02:29:52.49
IV.CING.HHN. ML:0.4 0.00001565 0.74 AML other m 2017-07-31T02:29:57.33
IV.CING.HHE. ML:0.4 0.000013650000000000001 0.66 AML other m 2017-07-31T02:29:58.79
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