Earthquake with magnitude of Md 2.4 on date 17-04-1997 and time 05:26:40 (UTC) in region 3 km SW Frontino (PU)

A magnitude Md 2.4 earthquake occured in region: 3 km SW Frontino (PU), on

  • 17-04-1997 05:26:40 (UTC)
  • 17-04-1997 07:26:40 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.7450, 12.3600 at 5 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
Frontino PU 3 293 293
Belforte all'Isauro PU 3 769 1062
Carpegna PU 5 1674 2736
Piandimeleto PU 5 2167 4903
Sestino AR 6 1355 6258
Pietrarubbia PU 7 660 6918
Lunano PU 7 1527 8445
Macerata Feltria PU 9 1990 10435
Sant'Angelo in Vado PU 10 4133 14568
Montecopiolo PU 11 1128 15696
Mercatello sul Metauro PU 11 1378 17074
Borgo Pace PU 11 606 17680
Pennabilli RN 11 2869 20549
Monte Cerignone PU 12 669 21218
Sassocorvaro PU 12 3504 24722
Peglio PU 12 696 25418
Badia Tedalda AR 15 1087 26505
Maiolo RN 15 848 27353
Urbania PU 16 7099 34452
Monte Grimano Terme PU 16 1136 35588
San Leo RN 17 2972 38560
Casteldelci RN 17 407 38967
Mercatino Conca PU 18 1086 40053
Novafeltria RN 18 7164 47217
Sant'Agata Feltria RN 18 2151 49368
Talamello RN 19 1104 50472
Auditore PU 19 1566 52038

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km SW of Rimini (147750 inhabitants)
45 Km S of Cesena (96758 inhabitants)
48 Km W of Pesaro (94582 inhabitants)
49 Km NE of Arezzo (99543 inhabitants)
54 Km W of Fano (60888 inhabitants)
59 Km SE of Forlì (117913 inhabitants)
71 Km N of Perugia (166134 inhabitants)
71 Km SE of Faenza (58541 inhabitants)
76 Km S of Ravenna (159116 inhabitants)
85 Km SE of Imola (69797 inhabitants)
89 Km E of Firenze (382808 inhabitants)
92 Km NW of Foligno (57155 inhabitants)
94 Km W of Ancona (100861 inhabitants)
95 Km E of Scandicci (50609 inhabitants)
95 Km NE of Siena (53903 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
Md 2.4
ML-VAX 1.9
1997-04-17
05:26:40
43.745 12.36 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 266139
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-04-17 05:26:40 ± 0.274
Latitude 43.7450 ± 0.0132
Longitude 12.3600 ± 0.0235
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 266139

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 2389.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 123
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.00170
Epicentral distance of station farthest from the epicenter (degree) 0.01238
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitudes information

Md:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 266139
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:11:37

ML:1.9

Field Value
Value 1.9
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 266139
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 13:07:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.MNS.Z. 1997-04-17T05:27:25.83 10.0 undecidable manual SN 170 1.3764 1.07 0.1
--.MNS.Z. 1997-04-17T05:27:06.10 10.0 undecidable manual PN 170 1.3764 0.2 0.9
--.ASS.Z. 1997-04-17T05:27:06.67 10.0 undecidable manual SG 162 0.7104 0.75 0.3
--.ARV.Z. 1997-04-17T05:26:58.94 10.0 undecidable manual SG 120 0.4884 0.26 0.6
--.SFI.Z. 1997-04-17T05:26:56.64 10.0 undecidable manual SG 293 0.3996 0.92 0.3
--.ASS.Z. 1997-04-17T05:26:55.10 10.0 undecidable manual PG 162 0.7104 0.08 1.4
--.FB9.Z. 1997-04-17T05:26:53.44 10.0 undecidable manual SG 99 0.3108 1.41 0.1
--.ARV.Z. 1997-04-17T05:26:49.70 10.0 positive manual PG 120 0.4884 -1.14 0.8
--.SFI.Z. 1997-04-17T05:26:48.32 10.0 undecidable manual PG 293 0.3996 -0.81 0.8
--.RSM.Z. 1997-04-17T05:26:47.96 10.0 undecidable manual SG 19 0.1887 0.11 0.6
--.FB9.Z. 1997-04-17T05:26:46.71 10.0 positive manual PG 99 0.3108 -0.29 2.9
--.RSM.Z. 1997-04-17T05:26:44.76 10.0 positive manual PG 19 0.1887 0.18 3.1
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